diff -ruN gcc-12.2.0/config.sub gcc-12.2.0-banan/config.sub
--- gcc-12.2.0/config.sub	2022-08-19 11:09:52.128656687 +0300
+++ gcc-12.2.0-banan/config.sub	2023-04-05 21:48:39.434844559 +0300
@@ -1749,7 +1749,7 @@
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
-	     | fiwix* )
+	     | fiwix* | banan_os* )
 		;;
 	# This one is extra strict with allowed versions
 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
diff -ruN gcc-12.2.0/fixincludes/mkfixinc.sh gcc-12.2.0-banan/fixincludes/mkfixinc.sh
--- gcc-12.2.0/fixincludes/mkfixinc.sh	2022-08-19 11:09:52.160657095 +0300
+++ gcc-12.2.0-banan/fixincludes/mkfixinc.sh	2023-04-05 22:00:58.256077444 +0300
@@ -11,6 +11,8 @@
 
 # Check for special fix rules for particular targets
 case $machine in
+    *-banan_os* | \
+	*-*-banan_os* | \
     i?86-*-cygwin* | \
     i?86-*-mingw32* | \
     x86_64-*-mingw32* | \
diff -ruN gcc-12.2.0/gcc/config/banan_os.h gcc-12.2.0-banan/gcc/config/banan_os.h
--- gcc-12.2.0/gcc/config/banan_os.h	1970-01-01 02:00:00.000000000 +0200
+++ gcc-12.2.0-banan/gcc/config/banan_os.h	2023-04-05 22:03:20.133753757 +0300
@@ -0,0 +1,32 @@
+/* Useful if you wish to make target-specific GCC changes. */
+#undef TARGET_BANAN_OS
+#define TARGET_BANAN_OS 1
+ 
+/* Default arguments you want when running your
+   i686-banan_os-gcc/x86_64-banan_os-gcc toolchain */
+#undef LIB_SPEC
+#define LIB_SPEC "-lc" /* link against C standard library */
+ 
+/* Files that are linked before user code.
+   The %s tells GCC to look for these files in the library directory. */
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
+ 
+/* Files that are linked after user code. */
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
+
+/* Linker struff */
+#undef LINK_SPEC
+#define LINK_SPEC "%{shared:-shared} %{static:-static} %{!shared: %{!static: %{rdynamic:-export-dynamic}}} -z max-page-size=4096"
+
+/* Additional predefined macros. */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()      \
+  do {                                \
+    builtin_define ("__banan_os__");      \
+    builtin_define ("__unix__");      \
+    builtin_assert ("system=myos");   \
+    builtin_assert ("system=unix");   \
+    builtin_assert ("system=posix");   \
+  } while(0);
diff -ruN gcc-12.2.0/gcc/config.gcc gcc-12.2.0-banan/gcc/config.gcc
--- gcc-12.2.0/gcc/config.gcc	2022-08-19 11:09:52.552662114 +0300
+++ gcc-12.2.0-banan/gcc/config.gcc	2023-04-05 21:53:33.963354105 +0300
@@ -673,6 +673,12 @@
 
 # Common parts for widely ported systems.
 case ${target} in
+*-*-banan_os*)
+  gas=yes
+  gnu_ld=yes
+  default_use_cxa_atexit=yes
+  use_gcc_stdint=provide
+  ;;
 *-*-darwin*)
   tmake_file="t-darwin "
   tm_file="${tm_file} darwin.h"
@@ -1087,6 +1093,12 @@
 esac
 
 case ${target} in
+i[34567]86-*-banan_os*)
+	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h glibc-stdint.h i386/i386elf.h banan_os.h"
+	;;
+x86_64-*-banan_os*)
+	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h glibc-stdint.h i386/i386elf.h i386/x86-64.h banan_os.h"
+	;;
 aarch64*-*-elf | aarch64*-*-fuchsia* | aarch64*-*-rtems*)
 	tm_file="${tm_file} dbxelf.h elfos.h newlib-stdint.h"
 	tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-errata.h aarch64/aarch64-elf-raw.h"
diff -ruN gcc-12.2.0/libgcc/config.host gcc-12.2.0-banan/libgcc/config.host
--- gcc-12.2.0/libgcc/config.host	2022-08-19 11:09:54.664689148 +0300
+++ gcc-12.2.0-banan/libgcc/config.host	2023-04-05 22:00:17.580076972 +0300
@@ -376,6 +376,14 @@
 esac
 
 case ${host} in
+i[34567]86-*banan_os*)
+	extra_parts="$extra_parts crti.o crtbegin.o crtend.o crtn.o"
+	tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
+	;;
+x86_64-*-banan_os*)
+	extra_parts="$extra_parts crti.o crtbegin.o crtend.o crtn.o"
+	tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
+	;;
 aarch64*-*-elf | aarch64*-*-rtems*)
 	extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
 	extra_parts="$extra_parts crtfastmath.o"
diff -ruN gcc-12.2.0/libstdc++-v3/autom4te.cache/output.0 gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/output.0
--- gcc-12.2.0/libstdc++-v3/autom4te.cache/output.0	1970-01-01 02:00:00.000000000 +0200
+++ gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/output.0	2023-04-05 21:57:17.349695468 +0300
@@ -0,0 +1,88121 @@
+@%:@! /bin/sh
+@%:@ Guess values for system-dependent variables and create Makefiles.
+@%:@ Generated by GNU Autoconf 2.69 for package-unused version-unused.
+@%:@ 
+@%:@ 
+@%:@ Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+@%:@ 
+@%:@ 
+@%:@ This configure script is free software; the Free Software Foundation
+@%:@ gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in @%:@(
+  *posix*) :
+    set -o posix ;; @%:@(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in @%:@(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in @%:@((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in @%:@ ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in @%:@(
+  *posix*) :
+    set -o posix ;; @%:@(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+  
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+  
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in @%:@(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in @%:@ ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+@%:@ as_fn_unset VAR
+@%:@ ---------------
+@%:@ Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+@%:@ as_fn_set_status STATUS
+@%:@ -----------------------
+@%:@ Set @S|@? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} @%:@ as_fn_set_status
+
+@%:@ as_fn_exit STATUS
+@%:@ -----------------
+@%:@ Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} @%:@ as_fn_exit
+
+@%:@ as_fn_mkdir_p
+@%:@ -------------
+@%:@ Create "@S|@as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} @%:@ as_fn_mkdir_p
+
+@%:@ as_fn_executable_p FILE
+@%:@ -----------------------
+@%:@ Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} @%:@ as_fn_executable_p
+@%:@ as_fn_append VAR VALUE
+@%:@ ----------------------
+@%:@ Append the text in VALUE to the end of the definition contained in VAR. Take
+@%:@ advantage of any shell optimizations that allow amortized linear growth over
+@%:@ repeated appends, instead of the typical quadratic growth present in naive
+@%:@ implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+@%:@ as_fn_arith ARG...
+@%:@ ------------------
+@%:@ Perform arithmetic evaluation on the ARGs, and store the result in the
+@%:@ global @S|@as_val. Take advantage of shells that can avoid forks. The arguments
+@%:@ must be portable across @S|@(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+@%:@ as_fn_error STATUS ERROR [LINENO LOG_FD]
+@%:@ ----------------------------------------
+@%:@ Output "`basename @S|@0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+@%:@ provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+@%:@ script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} @%:@ as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in @%:@(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIB@&t@OBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='package-unused'
+PACKAGE_TARNAME='libstdc++'
+PACKAGE_VERSION='version-unused'
+PACKAGE_STRING='package-unused version-unused'
+PACKAGE_BUGREPORT=''
+PACKAGE_URL=''
+
+ac_unique_file="src/shared/hashtable-aux.cc"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIB@&t@OBJS
+get_gcc_base_ver
+WARN_FLAGS
+OPTIMIZE_CXXFLAGS
+TOPLEVEL_INCLUDES
+GLIBCXX_INCLUDES
+glibcxx_toolexeclibdir
+glibcxx_toolexecdir
+gxx_include_dir
+glibcxx_prefixdir
+EXTRA_CFLAGS
+tmake_file
+CPU_OPT_BITS_RANDOM
+CPU_OPT_EXT_RANDOM
+ERROR_CONSTANTS_SRCDIR
+OS_INC_SRCDIR
+ABI_TWEAKS_SRCDIR
+CPU_DEFINES_SRCDIR
+ATOMIC_FLAGS
+ATOMIC_WORD_SRCDIR
+ATOMICITY_SRCDIR
+INCLUDE_DIR_NOTPARALLEL_FALSE
+INCLUDE_DIR_NOTPARALLEL_TRUE
+BUILD_PDF_FALSE
+BUILD_PDF_TRUE
+PDFLATEX
+DBLATEX
+BUILD_MAN_FALSE
+BUILD_MAN_TRUE
+BUILD_HTML_FALSE
+BUILD_HTML_TRUE
+BUILD_XML_FALSE
+BUILD_XML_TRUE
+BUILD_EPUB_FALSE
+BUILD_EPUB_TRUE
+XSL_STYLE_DIR
+XMLLINT
+XSLTPROC
+XMLCATALOG
+DOT
+DOXYGEN
+BUILD_INFO_FALSE
+BUILD_INFO_TRUE
+ENABLE_BACKTRACE_FALSE
+ENABLE_BACKTRACE_TRUE
+BACKTRACE_SUPPORTS_THREADS
+BACKTRACE_USES_MALLOC
+BACKTRACE_SUPPORTED
+BACKTRACE_CPPFLAGS
+ALLOC_FILE
+VIEW_FILE
+FORMAT_FILE
+ENABLE_FILESYSTEM_TS_FALSE
+ENABLE_FILESYSTEM_TS_TRUE
+baseline_subdir_switch
+baseline_dir
+HWCAP_CFLAGS
+GLIBCXX_LDBL_ALT128_COMPAT_FALSE
+GLIBCXX_LDBL_ALT128_COMPAT_TRUE
+GLIBCXX_LDBL_COMPAT_FALSE
+GLIBCXX_LDBL_COMPAT_TRUE
+LONG_DOUBLE_ALT128_COMPAT_FLAGS
+LONG_DOUBLE_128_FLAGS
+LONG_DOUBLE_COMPAT_FLAGS
+ENABLE_CXX11_ABI_FALSE
+ENABLE_CXX11_ABI_TRUE
+glibcxx_cxx98_abi
+ENABLE_DUAL_ABI_FALSE
+ENABLE_DUAL_ABI_TRUE
+ENABLE_VISIBILITY_FALSE
+ENABLE_VISIBILITY_TRUE
+libtool_VERSION
+ENABLE_SYMVERS_SUN_FALSE
+ENABLE_SYMVERS_SUN_TRUE
+ENABLE_SYMVERS_DARWIN_FALSE
+ENABLE_SYMVERS_DARWIN_TRUE
+ENABLE_SYMVERS_GNU_NAMESPACE_FALSE
+ENABLE_SYMVERS_GNU_NAMESPACE_TRUE
+ENABLE_SYMVERS_GNU_FALSE
+ENABLE_SYMVERS_GNU_TRUE
+ENABLE_SYMVERS_FALSE
+ENABLE_SYMVERS_TRUE
+port_specific_symbol_files
+SYMVER_FILE
+CXXFILT
+LTLIBICONV
+LIBICONV
+OPT_LDFLAGS
+SECTION_LDFLAGS
+GLIBCXX_LIBS
+ENABLE_VTABLE_VERIFY_FALSE
+ENABLE_VTABLE_VERIFY_TRUE
+VTV_CYGMIN_FALSE
+VTV_CYGMIN_TRUE
+VTV_CXXLINKFLAGS
+VTV_PCH_CXXFLAGS
+VTV_CXXFLAGS
+ENABLE_WERROR_FALSE
+ENABLE_WERROR_TRUE
+ENABLE_PYTHONDIR_FALSE
+ENABLE_PYTHONDIR_TRUE
+python_mod_dir
+ENABLE_EXTERN_TEMPLATE_FALSE
+ENABLE_EXTERN_TEMPLATE_TRUE
+EXTRA_CXX_FLAGS
+GLIBCXX_BUILD_DEBUG_FALSE
+GLIBCXX_BUILD_DEBUG_TRUE
+DEBUG_FLAGS
+GLIBCXX_C_HEADERS_COMPATIBILITY_FALSE
+GLIBCXX_C_HEADERS_COMPATIBILITY_TRUE
+GLIBCXX_C_HEADERS_C_GLOBAL_FALSE
+GLIBCXX_C_HEADERS_C_GLOBAL_TRUE
+GLIBCXX_C_HEADERS_C_STD_FALSE
+GLIBCXX_C_HEADERS_C_STD_TRUE
+GLIBCXX_C_HEADERS_C_FALSE
+GLIBCXX_C_HEADERS_C_TRUE
+C_INCLUDE_DIR
+ALLOCATOR_NAME
+ALLOCATOR_H
+ENABLE_ALLOCATOR_NEW_FALSE
+ENABLE_ALLOCATOR_NEW_TRUE
+CLOCALE_INTERNAL_H
+CLOCALE_CC
+CTIME_CC
+CTIME_H
+CNUMERIC_CC
+CMONEY_CC
+CMESSAGES_CC
+CCTYPE_CC
+CCOLLATE_CC
+CCODECVT_CC
+CMESSAGES_H
+CLOCALE_H
+USE_NLS
+glibcxx_localedir
+glibcxx_POFILES
+glibcxx_MOFILES
+check_msgfmt
+BASIC_FILE_CC
+BASIC_FILE_H
+CSTDIO_H
+SECTION_FLAGS
+ENABLE_FLOAT128_FALSE
+ENABLE_FLOAT128_TRUE
+thread_header
+glibcxx_PCHFLAGS
+GLIBCXX_BUILD_PCH_FALSE
+GLIBCXX_BUILD_PCH_TRUE
+FREESTANDING_FLAGS
+GLIBCXX_HOSTED_FALSE
+GLIBCXX_HOSTED_TRUE
+glibcxx_compiler_shared_flag
+glibcxx_compiler_pic_flag
+glibcxx_lt_pic_flag
+enable_static
+enable_shared
+lt_host_flags
+CXXCPP
+OTOOL64
+OTOOL
+LIPO
+NMEDIT
+DSYMUTIL
+OBJDUMP
+NM
+ac_ct_DUMPBIN
+DUMPBIN
+LD
+FGREP
+SED
+LIBTOOL
+EGREP
+GREP
+CPP
+MAINT
+MAINTAINER_MODE_FALSE
+MAINTAINER_MODE_TRUE
+RANLIB
+AR
+AS
+LN_S
+toplevel_srcdir
+toplevel_builddir
+glibcxx_srcdir
+glibcxx_builddir
+ac_ct_CXX
+CXXFLAGS
+CXX
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+target_os
+target_vendor
+target_cpu
+target
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+multi_basedir
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_multilib
+enable_silent_rules
+enable_largefile
+with_target_subdir
+with_cross_host
+with_newlib
+enable_maintainer_mode
+enable_shared
+enable_static
+with_pic
+enable_fast_install
+with_gnu_ld
+enable_libtool_lock
+enable_hosted_libstdcxx
+enable_libstdcxx_verbose
+enable_libstdcxx_pch
+with_libstdcxx_lock_policy
+enable_cstdio
+enable_clocale
+enable_nls
+enable_libstdcxx_allocator
+enable_cheaders_obsolete
+enable_cheaders
+enable_long_long
+enable_wchar_t
+enable_c99
+enable_concept_checks
+enable_libstdcxx_debug_flags
+enable_libstdcxx_debug
+enable_cxx_flags
+enable_fully_dynamic_string
+enable_extern_template
+with_python_dir
+enable_werror
+enable_vtable_verify
+enable_libstdcxx_time
+enable_tls
+enable_rpath
+with_libiconv_prefix
+with_libiconv_type
+with_system_libunwind
+enable_linux_futex
+enable_symvers
+enable_libstdcxx_visibility
+enable_libstdcxx_dual_abi
+with_default_libstdcxx_abi
+enable_libstdcxx_threads
+enable_libstdcxx_filesystem_ts
+enable_libstdcxx_backtrace
+enable_cet
+with_gxx_include_dir
+enable_version_specific_runtime_libs
+with_toolexeclibdir
+with_gcc_major_version_only
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CXX
+CXXFLAGS
+CCC
+CPP
+CXXCPP
+CXXFILT'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures package-unused version-unused to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          @<:@@S|@ac_default_prefix@:>@
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          @<:@PREFIX@:>@
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root @<:@DATAROOTDIR/doc/libstdc++@:>@
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+  --target=TARGET   configure for building compilers for TARGET [HOST]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of package-unused version-unused:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-multilib       build many library versions (default)
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --disable-largefile     omit support for large files
+  --enable-maintainer-mode 
+                          enable make rules and dependencies not useful (and
+                          sometimes confusing) to the casual installer
+  --enable-shared@<:@=PKGS@:>@  build shared libraries @<:@default=yes@:>@
+  --enable-static@<:@=PKGS@:>@  build static libraries @<:@default=yes@:>@
+  --enable-fast-install@<:@=PKGS@:>@ 
+                          optimize for fast installation @<:@default=yes@:>@
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --disable-hosted-libstdcxx 
+                          only build freestanding C++ runtime support
+  --disable-libstdcxx-verbose 
+                          disable termination messages to standard error
+  --enable-libstdcxx-pch  build pre-compiled libstdc++ headers
+                          @<:@default=@S|@is_hosted@:>@
+  --enable-cstdio[=PACKAGE] 
+                          use target-specific I/O package @<:@default=stdio@:>@
+  --enable-clocale[=MODEL] 
+                          use MODEL for target locale package @<:@default=auto@:>@
+  --enable-nls            use Native Language Support (default)
+  --enable-libstdcxx-allocator[=KIND] 
+                          use KIND for target std::allocator base
+                          @<:@default=auto@:>@
+  --enable-cheaders-obsolete 
+                          allow use of obsolete "C" headers for g++
+                          @<:@default=no@:>@
+  --enable-cheaders[=KIND] 
+                          construct "C" headers for g++ @<:@default=@S|@c_model@:>@
+  --enable-long-long      enable template specializations for 'long long'
+                          @<:@default=yes@:>@
+  --enable-wchar_t        enable template specializations for 'wchar_t'
+                          @<:@default=yes@:>@
+  --enable-c99            turns on ISO/IEC 9899:1999 support @<:@default=yes@:>@
+  --enable-concept-checks use Boost-derived template checks @<:@default=no@:>@
+  --enable-libstdcxx-debug-flags=FLAGS 
+                          pass compiler FLAGS when building debug library
+                          @<:@default="-g3 -O0 -D_GLIBCXX_ASSERTIONS"@:>@
+  --enable-libstdcxx-debug 
+                          build extra debug library @<:@default=no@:>@
+  --enable-cxx-flags=FLAGS 
+                          pass compiler FLAGS when building library @<:@default=@:>@
+  --enable-fully-dynamic-string 
+                          do not put empty strings in per-process static
+                          memory @<:@default=no@:>@
+  --enable-extern-template 
+                          enable extern template @<:@default=yes@:>@
+  --enable-werror         turns on -Werror @<:@default=no@:>@
+  --enable-vtable-verify  enable vtable verify @<:@default=no@:>@
+  --enable-libstdcxx-time[=KIND] 
+                          use KIND for check type @<:@default=auto@:>@
+  --enable-tls            Use thread-local storage @<:@default=yes@:>@
+  --disable-rpath         do not hardcode runtime library paths
+  --enable-linux-futex    use the Linux futex system call @<:@default=default@:>@
+  --enable-symvers[=STYLE] 
+                          enables symbol versioning of the shared library
+                          @<:@default=yes@:>@
+  --enable-libstdcxx-visibility 
+                          enables visibility safe usage @<:@default=yes@:>@
+  --enable-libstdcxx-dual-abi 
+                          support two versions of std::string @<:@default=yes@:>@
+  --enable-libstdcxx-threads 
+                          enable C++11 threads support @<:@default=auto@:>@
+  --enable-libstdcxx-filesystem-ts 
+                          turns on ISO/IEC TS 18822 support @<:@default=auto@:>@
+  --enable-libstdcxx-backtrace 
+                          turns on libbacktrace support @<:@default=auto@:>@
+  --enable-cet            enable Intel CET in target libraries @<:@default=auto@:>@
+  --enable-version-specific-runtime-libs 
+                          Specify that runtime libraries should be installed
+                          in a compiler-specific directory
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-target-subdir=SUBDIR 
+                          configuring in a subdirectory
+  --with-cross-host=HOST  configuring with a cross compiler
+  --with-newlib           assume newlib as a system C library
+  --with-pic              try to use only PIC/non-PIC objects @<:@default=use
+                          both@:>@
+  --with-gnu-ld           assume the C compiler uses GNU ld @<:@default=no@:>@
+  --with-libstdcxx-lock-policy={atomic,mutex,auto} 
+                          synchronization policy for shared_ptr reference
+                          counting @<:@default=auto@:>@
+  --with-python-dir       the location to install Python modules. This path is
+                          relative starting from the prefix.
+  --with-gnu-ld           assume the C compiler uses GNU ld default=no
+  --with-libiconv-prefix[=DIR]  search for libiconv in DIR/include and DIR/lib
+  --without-libiconv-prefix     don't search for libiconv in includedir and libdir
+  --with-libiconv-type=TYPE     type of library to search for (auto/static/shared) 
+  --with-system-libunwind use installed libunwind
+  --with-default-libstdcxx-abi 
+                          set the std::string ABI to use by default
+  --with-gxx-include-dir=DIR 
+                          installation directory for include files
+  --with-toolexeclibdir=DIR 
+                          install libraries built with a cross compiler within
+                          DIR
+  --with-gcc-major-version-only 
+                          use only GCC major number in filesystem paths
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+  CXXCPP      C++ preprocessor
+  CXXFILT     Location of GNU c++filt. Defaults to the first GNU version of
+              `c++filt', `gc++filt' on PATH.
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to the package provider.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+package-unused configure version-unused
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+@%:@ ac_fn_c_try_compile LINENO
+@%:@ --------------------------
+@%:@ Try to compile conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_c_try_compile
+
+@%:@ ac_fn_cxx_try_compile LINENO
+@%:@ ----------------------------
+@%:@ Try to compile conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_cxx_try_compile
+
+@%:@ ac_fn_c_try_cpp LINENO
+@%:@ ----------------------
+@%:@ Try to preprocess conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_c_try_cpp
+
+@%:@ ac_fn_c_try_link LINENO
+@%:@ -----------------------
+@%:@ Try to link conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_c_try_link
+
+@%:@ ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+@%:@ -------------------------------------------------------
+@%:@ Tests whether HEADER exists and can be compiled using the include files in
+@%:@ INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+@%:@include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_c_check_header_compile
+
+@%:@ ac_fn_c_try_run LINENO
+@%:@ ----------------------
+@%:@ Try to link conftest.@S|@ac_ext, and return whether this succeeded. Assumes
+@%:@ that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_c_try_run
+
+@%:@ ac_fn_c_check_func LINENO FUNC VAR
+@%:@ ----------------------------------
+@%:@ Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_c_check_func
+
+@%:@ ac_fn_cxx_try_cpp LINENO
+@%:@ ------------------------
+@%:@ Try to preprocess conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_cxx_try_cpp
+
+@%:@ ac_fn_cxx_try_link LINENO
+@%:@ -------------------------
+@%:@ Try to link conftest.@S|@ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_cxx_try_link
+
+@%:@ ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+@%:@ -------------------------------------------------------
+@%:@ Tests whether HEADER exists, giving a warning if it cannot be compiled using
+@%:@ the include files in INCLUDES and setting the cache variable VAR
+@%:@ accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+@%:@include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_c_check_header_mongrel
+
+@%:@ ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+@%:@ ---------------------------------------------------------
+@%:@ Tests whether HEADER exists, giving a warning if it cannot be compiled using
+@%:@ the include files in INCLUDES and setting the cache variable VAR
+@%:@ accordingly.
+ac_fn_cxx_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+@%:@include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <$2>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_cxx_check_header_mongrel
+
+@%:@ ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
+@%:@ --------------------------------------------
+@%:@ Tries to find the compile-time value of EXPR in a program that includes
+@%:@ INCLUDES, setting VAR accordingly. Returns whether the value could be
+@%:@ computed
+ac_fn_c_compute_int ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if test "$cross_compiling" = yes; then
+    # Depending upon the size, compute the lo and hi bounds.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array @<:@1 - 2 * !(($2) >= 0)@:>@;
+test_array @<:@0@:>@ = 0;
+return test_array @<:@0@:>@;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array @<:@1 - 2 * !(($2) <= $ac_mid)@:>@;
+test_array @<:@0@:>@ = 0;
+return test_array @<:@0@:>@;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid; break
+else
+  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array @<:@1 - 2 * !(($2) < 0)@:>@;
+test_array @<:@0@:>@ = 0;
+return test_array @<:@0@:>@;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array @<:@1 - 2 * !(($2) >= $ac_mid)@:>@;
+test_array @<:@0@:>@ = 0;
+return test_array @<:@0@:>@;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=$ac_mid; break
+else
+  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  ac_lo= ac_hi=
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array @<:@1 - 2 * !(($2) <= $ac_mid)@:>@;
+test_array @<:@0@:>@ = 0;
+return test_array @<:@0@:>@;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid
+else
+  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in @%:@((
+?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
+'') ac_retval=1 ;;
+esac
+  else
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+static long int longval () { return $2; }
+static unsigned long int ulongval () { return $2; }
+@%:@include <stdio.h>
+@%:@include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (($2) < 0)
+    {
+      long int i = longval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%ld", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%lu", i);
+    }
+  /* Do not output a trailing newline, as this causes \r\n confusion
+     on some platforms.  */
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
+else
+  ac_retval=1
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f conftest.val
+
+  fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} @%:@ ac_fn_c_compute_int
+
+@%:@ ac_fn_cxx_check_func LINENO FUNC VAR
+@%:@ ------------------------------------
+@%:@ Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_cxx_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_cxx_check_func
+
+@%:@ ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+@%:@ -------------------------------------------
+@%:@ Tests whether TYPE exists after having included INCLUDES, setting cache
+@%:@ variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_c_check_type
+
+@%:@ ac_fn_cxx_check_type LINENO TYPE VAR INCLUDES
+@%:@ ---------------------------------------------
+@%:@ Tests whether TYPE exists after having included INCLUDES, setting cache
+@%:@ variable VAR accordingly.
+ac_fn_cxx_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_cxx_check_type
+
+@%:@ ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+@%:@ ---------------------------------------------
+@%:@ Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+@%:@ accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+@%:@ifndef $as_decl_name
+@%:@ifdef __cplusplus
+  (void) $as_decl_use;
+@%:@else
+  (void) $as_decl_name;
+@%:@endif
+@%:@endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} @%:@ ac_fn_c_check_decl
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by package-unused $as_me version-unused, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+@%:@define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in @%:@((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+ac_config_headers="$ac_config_headers config.h"
+
+
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.  Only used at the end of this file.
+### am handles this now?  ORIGINAL_LD_FOR_MULTILIBS=$LD
+
+# Find the rest of the source tree framework.
+# Default to --enable-multilib
+@%:@ Check whether --enable-multilib was given.
+if test "${enable_multilib+set}" = set; then :
+  enableval=$enable_multilib; case "$enableval" in
+  yes) multilib=yes ;;
+  no)  multilib=no ;;
+  *)   as_fn_error $? "bad value $enableval for multilib option" "$LINENO" 5 ;;
+ esac
+else
+  multilib=yes
+fi
+
+
+# We may get other options which we leave undocumented:
+# --with-target-subdir, --with-multisrctop, --with-multisubdir
+# See config-ml.in if you want the gory details.
+
+if test "$srcdir" = "."; then
+  if test "$with_target_subdir" != "."; then
+    multi_basedir="$srcdir/$with_multisrctop../.."
+  else
+    multi_basedir="$srcdir/$with_multisrctop.."
+  fi
+else
+  multi_basedir="$srcdir/.."
+fi
+
+
+# Even if the default multilib is not a cross compilation,
+# it may be that some of the other multilibs are.
+if test $cross_compiling = no && test $multilib = yes \
+   && test "x${with_multisubdir}" != x ; then
+   cross_compiling=maybe
+fi
+
+ac_config_commands="$ac_config_commands default-1"
+
+
+# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
+#
+# You will slowly go insane if you do not grok the following fact:  when
+# building v3 as part of the compiler, the top-level /target/ becomes the
+# library's /host/.  configure then causes --target to default to --host,
+# exactly like any other package using autoconf.  Therefore, 'target' and
+# 'host' will always be the same.  This makes sense both for native and
+# cross compilers, just think about it for a little while.  :-)
+#
+# Also, if v3 is being configured as part of a cross compiler, the top-level
+# configure script will pass the "real" host as $with_cross_host.
+#
+# Do not delete or change the following two lines.  For why, see
+# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
+$as_echo_n "checking target system type... " >&6; }
+if ${ac_cv_target+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$target_alias" = x; then
+  ac_cv_target=$ac_cv_host
+else
+  ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
+$as_echo "$ac_cv_target" >&6; }
+case $ac_cv_target in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
+esac
+target=$ac_cv_target
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_target
+shift
+target_cpu=$1
+target_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+target_os=$*
+IFS=$ac_save_IFS
+case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac
+
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+test -n "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+
+target_alias=${target_alias-$host_alias}
+
+# Handy for debugging:
+#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5
+
+if test "$build" != "$host"; then
+  # We are being configured with some form of cross compiler.
+  GLIBCXX_IS_NATIVE=false
+  case "$host","$target" in
+    # Darwin crosses can use the host system's libraries and headers,
+    # because of the fat library support.  Of course, it must be the
+    # same version of Darwin on both sides.  Allow the user to
+    # just say --target=foo-darwin without a version number to mean
+    # "the version on this system".
+      *-*-darwin*,*-*-darwin*)
+	hostos=`echo $host | sed 's/.*-darwin/darwin/'`
+	targetos=`echo $target | sed 's/.*-darwin/darwin/'`
+	if test $hostos = $targetos -o $targetos = darwin ; then
+	  GLIBCXX_IS_NATIVE=true
+	fi
+	;;
+
+      *)
+	
+	;;
+  esac
+else
+  GLIBCXX_IS_NATIVE=true
+fi
+
+# Sets up automake.  Must come after AC_CANONICAL_SYSTEM.  Each of the
+# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
+#  1.x:  minimum required version
+#  no-define:  PACKAGE and VERSION will not be #define'd in config.h (a bunch
+#              of other PACKAGE_* variables will, however, and there's nothing
+#              we can do about that; they come from AC_INIT).
+#  foreign:  we don't follow the normal rules for GNU packages (no COPYING
+#            file in the top srcdir, etc, etc), so stop complaining.
+#  no-dependencies:  turns off auto dependency generation (just for now)
+#  no-dist:  we don't want 'dist' and related rules.
+#  -Wall:  turns on all automake warnings...
+#  -Wno-portability:  ...except this one, since GNU make is now required.
+am__api_version='1.15'
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in @%:@((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+@%:@ Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules; 
+fi
+
+case $enable_silent_rules in @%:@ (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='libstdc++'
+ VERSION='version-unused'
+
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+
+
+
+
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <http://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+  fi
+fi
+
+
+
+
+# -fno-builtin must be present here so that a non-conflicting form of
+# std::exit can be guessed by AC_PROG_CXX, and used in later tests.
+
+save_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS -fno-builtin"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $@%:@ != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+printf ("hello world\n");
+  ;
+  return 0;
+}
+_ACEOF
+# FIXME: Cleanup?
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  gcc_no_link=no
+else
+  gcc_no_link=yes
+fi
+if test x$gcc_no_link = xyes; then
+  # Setting cross_compile will disable run tests; it will
+  # also disable AC_CHECK_FILE but that's generally
+  # correct if we can't link.
+  cross_compiling=yes
+  EXEEXT=
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+  
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CXXFLAGS="$save_CXXFLAGS"
+
+
+@%:@ Check whether --enable-largefile was given.
+if test "${enable_largefile+set}" = set; then :
+  enableval=$enable_largefile; 
+fi
+
+if test "$enable_largefile" != no; then
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5
+$as_echo_n "checking for special C compiler options needed for large files... " >&6; }
+if ${ac_cv_sys_largefile_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_sys_largefile_CC=no
+     if test "$GCC" != yes; then
+       ac_save_CC=$CC
+       while :; do
+	 # IRIX 6.2 and later do not support large files by default,
+	 # so use the C compiler's -n32 option if that helps.
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+	 if ac_fn_c_try_compile "$LINENO"; then :
+  break
+fi
+rm -f core conftest.err conftest.$ac_objext
+	 CC="$CC -n32"
+	 if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sys_largefile_CC=' -n32'; break
+fi
+rm -f core conftest.err conftest.$ac_objext
+	 break
+       done
+       CC=$ac_save_CC
+       rm -f conftest.$ac_ext
+    fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5
+$as_echo "$ac_cv_sys_largefile_CC" >&6; }
+  if test "$ac_cv_sys_largefile_CC" != no; then
+    CC=$CC$ac_cv_sys_largefile_CC
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; }
+if ${ac_cv_sys_file_offset_bits+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  while :; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sys_file_offset_bits=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@define _FILE_OFFSET_BITS 64
+@%:@include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sys_file_offset_bits=64; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  ac_cv_sys_file_offset_bits=unknown
+  break
+done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5
+$as_echo "$ac_cv_sys_file_offset_bits" >&6; }
+case $ac_cv_sys_file_offset_bits in #(
+  no | unknown) ;;
+  *) 
+cat >>confdefs.h <<_ACEOF
+@%:@define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
+_ACEOF
+;;
+esac
+rm -rf conftest*
+  if test $ac_cv_sys_file_offset_bits = unknown; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5
+$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; }
+if ${ac_cv_sys_large_files+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  while :; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sys_large_files=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@define _LARGE_FILES 1
+@%:@include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_sys_large_files=1; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  ac_cv_sys_large_files=unknown
+  break
+done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5
+$as_echo "$ac_cv_sys_large_files" >&6; }
+case $ac_cv_sys_large_files in #(
+  no | unknown) ;;
+  *) 
+cat >>confdefs.h <<_ACEOF
+@%:@define _LARGE_FILES $ac_cv_sys_large_files
+_ACEOF
+;;
+esac
+rm -rf conftest*
+  fi
+
+  
+fi
+
+
+# Runs configure.host, and assorted other critical bits.  Sets
+# up critical shell variables.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@ifdef __STDC__
+@%:@ include <limits.h>
+@%:@else
+@%:@ include <assert.h>
+@%:@endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+  
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@ifdef __STDC__
+@%:@ include <limits.h>
+@%:@else
+@%:@ include <assert.h>
+@%:@endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+ 
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+ 
+
+
+  # Keep these sync'd with the list in Makefile.am.  The first provides an
+  # expandable list at autoconf time; the second provides an expandable list
+  # (i.e., shell variable) at configure time.
+  
+  SUBDIRS='include libsupc++ src src/c++98 src/c++11 src/c++17 src/c++20 src/filesystem src/libbacktrace doc po testsuite python'
+
+  # These need to be absolute paths, yet at the same time need to
+  # canonicalize only relative paths, because then amd will not unmount
+  # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+  glibcxx_builddir=`${PWDCMD-pwd}`
+  case $srcdir in
+    \\/$* | ?:\\/*) glibcxx_srcdir=${srcdir} ;;
+    *) glibcxx_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+  esac
+  toplevel_builddir=${glibcxx_builddir}/..
+  toplevel_srcdir=${glibcxx_srcdir}/..
+  
+  
+  
+  
+
+  # We use these options to decide which functions to include.  They are
+  # set from the top level.
+  
+@%:@ Check whether --with-target-subdir was given.
+if test "${with_target_subdir+set}" = set; then :
+  withval=$with_target_subdir; 
+fi
+
+
+  
+@%:@ Check whether --with-cross-host was given.
+if test "${with_cross_host+set}" = set; then :
+  withval=$with_cross_host; 
+fi
+
+
+  
+@%:@ Check whether --with-newlib was given.
+if test "${with_newlib+set}" = set; then :
+  withval=$with_newlib; 
+fi
+
+
+  # Will set LN_S to either 'ln -s', 'ln', or 'cp -p' (if linking isn't
+  # available).  Uncomment the next line to force a particular method.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+  #LN_S='cp -p'
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
+set dummy ${ac_tool_prefix}as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AS="${ac_tool_prefix}as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AS=$ac_cv_prog_AS
+if test -n "$AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+$as_echo "$AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AS"; then
+  ac_ct_AS=$AS
+  # Extract the first word of "as", so it can be a program name with args.
+set dummy as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AS"; then
+  ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AS="as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AS=$ac_cv_prog_ac_ct_AS
+if test -n "$ac_ct_AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
+$as_echo "$ac_ct_AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AS" = x; then
+    AS=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AS=$ac_ct_AS
+  fi
+else
+  AS="$ac_cv_prog_AS"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB="ranlib-not-found-in-path-error"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+
+  
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
+$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
+    @%:@ Check whether --enable-maintainer-mode was given.
+if test "${enable_maintainer_mode+set}" = set; then :
+  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
+else
+  USE_MAINTAINER_MODE=no
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
+$as_echo "$USE_MAINTAINER_MODE" >&6; }
+   if test $USE_MAINTAINER_MODE = yes; then
+  MAINTAINER_MODE_TRUE=
+  MAINTAINER_MODE_FALSE='#'
+else
+  MAINTAINER_MODE_TRUE='#'
+  MAINTAINER_MODE_FALSE=
+fi
+
+  MAINT=$MAINTAINER_MODE_TRUE
+  
+
+
+  # Set up safe default values for all subsequent AM_CONDITIONAL tests
+  # which are themselves conditionally expanded.
+  ## (Right now, this only matters for enable_wchar_t, but nothing prevents
+  ## other macros from doing the same.  This should be automated.)  -pme
+
+  # Check for C library flavor since GNU/Linux platforms use different
+  # configuration directories depending on the C library in use.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include <stdio.h>
+  #if __UCLIBC__
+    _using_uclibc
+  #endif
+  
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "_using_uclibc" >/dev/null 2>&1; then :
+  uclibc=yes
+else
+  uclibc=no
+fi
+rm -f conftest*
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include <stdio.h>
+  #if __BIONIC__
+    _using_bionic
+  #endif
+  
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "_using_bionic" >/dev/null 2>&1; then :
+  bionic=yes
+else
+  bionic=no
+fi
+rm -f conftest*
+
+
+  # Find platform-specific directories containing configuration info.
+  # Also possibly modify flags used elsewhere, as needed by the platform.
+  
+  . $glibcxx_srcdir/configure.host
+  { $as_echo "$as_me:${as_lineno-$LINENO}: CPU config directory is $cpu_include_dir" >&5
+$as_echo "$as_me: CPU config directory is $cpu_include_dir" >&6;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: OS config directory is $os_include_dir" >&5
+$as_echo "$as_me: OS config directory is $os_include_dir" >&6;}
+
+
+
+# Libtool setup.
+if test "x${with_newlib}" != "xyes" &&
+    test "x${with_avrlibc}" != "xyes" &&
+    test "x$with_headers" != "xno"; then
+  enable_dlopen=yes
+
+
+
+fi
+case `pwd` in
+  *\ * | *\	*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.2.7a'
+macro_revision='1.3134'
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+
+
+ltmain="$ac_aux_dir/ltmain.sh"
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+$as_echo_n "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`print -r -- -n 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "" 
+}
+
+case "$ECHO" in
+  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+$as_echo "printf" >&6; } ;;
+  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+$as_echo "print -r" >&6; } ;;
+  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+$as_echo "cat" >&6; } ;;
+esac
+
+
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in fgrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+ 
+
+test -z "$GREP" && GREP=grep
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+
+
+
+@%:@ Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+    
+    
+    
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_nm_to_check="${ac_tool_prefix}nm"
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS="$lt_save_ifs"
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm="$ac_dir/$lt_tmp_nm"
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+	*/dev/null* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS="$lt_save_ifs"
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test "$lt_cv_path_NM" != "no"; then
+  NM="$lt_cv_path_NM"
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+  
+  if test "$DUMPBIN" != ":"; then
+    NM="$DUMPBIN"
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+    
+    
+    
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    i=0
+  teststring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8 ; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test $i != 17 # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n $lt_cv_sys_max_cmd_len ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+    
+    
+    
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
+$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
+# Try some XSI features
+xsi_shell=no
+( _lt_dummy="a/b/c"
+  test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
+      = c,a/b,, \
+    && eval 'test $(( 1 + 1 )) -eq 2 \
+    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
+  && xsi_shell=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
+$as_echo "$xsi_shell" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
+$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
+lt_shell_append=no
+( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
+    >/dev/null 2>&1 \
+  && lt_shell_append=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
+$as_echo "$lt_shell_append" >&6; }
+
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+    
+    
+    
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+    
+    
+    
+
+    
+    
+    
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  darwin*)
+    if test "$GCC" = yes; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+    
+    
+    
+
+    
+    
+    
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+    
+    
+    
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+test -z "$AR" && AR=ar
+test -z "$AR_FLAGS" && AR_FLAGS=cru
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+    
+    
+    
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+    
+    
+    
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test "$host_cpu" = ia64; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function
+    # and D for any global variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
+"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
+"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
+  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+const struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_save_LIBS="$LIBS"
+	  lt_save_CFLAGS="$CFLAGS"
+	  LIBS="conftstm.$ac_objext"
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
+	    pipe_works=yes
+	  fi
+	  LIBS="$lt_save_LIBS"
+	  CFLAGS="$lt_save_CFLAGS"
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+@%:@ Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+  enableval=$enable_libtool_lock; 
+fi
+
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE="32"
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE="64"
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test "$lt_cv_prog_gnu_ld" = yes; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `/usr/bin/file conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_cc_needs_belf=yes
+else
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+sparc*-*solaris*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*) LD="${LD-ld} -m elf64_sparc" ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks="$enable_libtool_lock"
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+    
+    
+    
+    
+
+    
+    
+    
+    
+
+    
+    
+    
+    
+
+    
+    
+    
+    
+
+    
+    
+    
+    
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_apple_cc_single_mod=no
+      if test -z "${LT_MULTI_MODULE}"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_ld_exported_symbols_list=yes
+else
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS="$save_LDFLAGS"
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR cru libconftest.a conftest.o" >&5
+      $AR cru libconftest.a conftest.o 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+    # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to
+    # build without first building modern cctools / linker.
+    case $host_cpu-$host_os in
+    *-rhapsody* | *-darwin1.[012])
+      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+    *-darwin1.*)
+      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+    *-darwin*)
+      # darwin 5.x (macOS 10.1) onwards we only need to adjust when the
+      # deployment target is forced to an earlier version.
+      case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in
+	UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*)
+	  ;;
+	10.[012][,.]*)
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
+	  ;;
+	*)
+	  ;;
+     esac
+    ;;
+  esac
+    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
+      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    fi
+    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+  
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+  
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+  
+$as_echo "@%:@define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+
+for ac_header in dlfcn.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_DLFCN_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+
+
+
+
+# Set options
+
+
+
+        
+  enable_win32_dll=no
+  
+
+            @%:@ Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_shared=yes
+fi
+
+
+    
+    
+    
+    
+
+
+
+  @%:@ Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_static=yes
+fi
+
+
+    
+    
+    
+    
+
+
+
+  
+@%:@ Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+  withval=$with_pic; pic_mode="$withval"
+else
+  pic_mode=default
+fi
+
+
+test -z "$pic_mode" && pic_mode=default
+
+
+    
+    
+    
+
+
+  @%:@ Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi
+
+
+
+    
+    
+    
+
+
+  
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ltmain"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+test -z "$LN_S" && LN_S="ln -s"
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+
+if test -n "${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+    
+    
+    
+
+cat >>confdefs.h <<_ACEOF
+@%:@define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/${ac_tool_prefix}file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    
+    
+    
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC="$CC"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  
+lt_prog_compiler_no_builtin_flag=
+
+if test "$GCC" = yes; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+    
+    
+    
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      lt_prog_compiler_pic='-Xcompiler -fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
+      case $cc_basename in
+      # old Intel for x86_64 which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ F* | *Sun*Fortran*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic@&t@ -DPIC"
+    ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_prog_compiler_pic" >&5
+$as_echo "$lt_prog_compiler_pic" >&6; }
+
+    
+    
+    
+
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic@&t@ -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+    
+    
+    
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works" = xyes; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+    
+    
+    
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+    
+    
+    
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+    
+    
+    
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_flag_spec_ld=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test "$with_gnu_ld" = yes; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test "$lt_use_gnu_ld_interface" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='${wl}--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file (1st line
+	# is EXPORTS), use it as is; otherwise, prepend...
+	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	  cp $export_symbols $output_objdir/$soname.def;
+	else
+	  echo EXPORTS > $output_objdir/$soname.def;
+	  cat $export_symbols >> $output_objdir/$soname.def;
+	fi~
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+      export_dynamic_flag_spec='${wl}-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi)
+      tmp_diet=no
+      if test "$host_os" = linux-dietlibc; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test "$tmp_diet" = no
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+
+        if test "x$supports_anon_versioning" = xyes; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	    echo "local: *; };" >> $output_objdir/$libname.ver~
+	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec=
+	  hardcode_libdir_flag_spec_ld='-rpath $libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
+	  if test "x$supports_anon_versioning" = xyes; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	      echo "local: *; };" >> $output_objdir/$libname.ver~
+	      $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs" = no; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test "$host_cpu" = ia64; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=""
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to AIX nm, but means don't demangle with GNU nm
+	# Also, AIX nm treats weak defined symbols like other global
+	# defined symbols, whereas GNU nm marks them as "W".
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# need to do runtime linking.
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='${wl}-f,'
+
+      if test "$GCC" = yes; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test "$aix_use_runtimelinking" = yes; then
+	  shared_flag="$shared_flag "'${wl}-G'
+	fi
+      else
+	# not using gcc
+	if test "$host_cpu" = ia64; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag='${wl}-G'
+	  else
+	    shared_flag='${wl}-bM:SRE'
+	  fi
+	fi
+      fi
+
+      export_dynamic_flag_spec='${wl}-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test "$aix_use_runtimelinking" = yes; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  
+lt_aix_libpath_sed='
+    /Import File Strings/,/^$/ {
+	/^0/ {
+	    s/^0  *\(.*\)$/\1/
+	    p
+	}
+    }'
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then
+  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+      else
+	if test "$host_cpu" = ia64; then
+	  hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  
+lt_aix_libpath_sed='
+    /Import File Strings/,/^$/ {
+	/^0/ {
+	    s/^0  *\(.*\)$/\1/
+	    p
+	}
+    }'
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then
+  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+	 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' ${wl}-bernotok'
+	  allow_undefined_flag=' ${wl}-berok'
+	  if test "$with_gnu_ld" = yes; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  # This is similar to how AIX traditionally builds its shared libraries.
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec=' '
+      allow_undefined_flag=unsupported
+      # Tell ltmain to make .lib files, not .a files.
+      libext=lib
+      # Tell ltmain to make .dll files, not .so files.
+      shrext_cmds=".dll"
+      # FIXME: Setting linknames here is a bad hack.
+      archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+      # The linker will automatically build a .lib file if we build a DLL.
+      old_archive_from_new_cmds='true'
+      # FIXME: Should let the user specify the lib program.
+      old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+      fix_srcfile_path='`cygpath -w "$srcfile"`'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    darwin* | rhapsody*)
+      
+  
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+    
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='${wl}-E'
+      ;;
+
+    hpux10*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_flag_spec_ld='+b $libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='${wl}-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test x"$lt_cv_prog_compiler__b" = xyes; then
+    archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='${wl}-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+        save_LDFLAGS="$LDFLAGS"
+        LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+        if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo(void) {}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+        
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        LDFLAGS="$save_LDFLAGS"
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	  export_dynamic_flag_spec='${wl}-E'
+	else
+	  case $host_os in
+	   openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+	     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+	     hardcode_libdir_flag_spec='-R$libdir'
+	     ;;
+	   *)
+	     archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	     hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	     ;;
+	  esac
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test "$GCC" = yes; then
+	wlarc='${wl}'
+	archive_cmds='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='${wl}'
+	  archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands `-z linker_flag'.  GCC discards it without `$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test "$GCC" = yes; then
+	  whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='${wl}-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='${wl}-z,text'
+      allow_undefined_flag='${wl}-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test x$host_vendor = xsni; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='${wl}-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test "$ld_shlibs" = no && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+    
+    
+    
+
+    
+    
+    
+
+    
+    
+    
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test "$GCC" = yes; then
+  case $host_os in
+    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
+    *) lt_awk_arg="/^libraries:/" ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;;
+    *) lt_sed_strip_eq="s,=/,/,g" ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary.
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
+    else
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS=" "; FS="/|\n";} {
+  lt_foo="";
+  lt_count=0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo="/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's,/\([A-Za-z]:\),\1,g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/beos/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test "X$hardcode_automatic" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
+     test "$hardcode_minus_L" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test "$hardcode_action" = relink ||
+   test "$inherit_rpath" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+    
+    
+    
+
+
+  if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    
+fi
+
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_shl_load=yes
+else
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
+else
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_svld_dlopen=yes
+else
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_dld_link=yes
+else
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+fi
+
+	      
+fi
+
+	    
+fi
+
+	  
+fi
+
+	
+fi
+
+      
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+void fnord () __attribute__((visibility("default")));
+#endif
+
+void fnord () { int i=42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+void fnord () __attribute__((visibility("default")));
+#endif
+
+void fnord () { int i=42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+  
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP" ; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+    ;;
+  *)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    ;;
+  esac
+fi
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+
+  # Report which library types will actually be built
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+  test "$can_build_shared" = "no" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test "$enable_shared" = yes && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+      test "$enable_shared" = yes && enable_static=no
+    fi
+    ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test "$enable_shared" = yes || enable_static=yes
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+  
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+      if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
+    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
+    (test "X$CXX" != "Xg++"))) ; then
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@ifdef __STDC__
+@%:@ include <limits.h>
+@%:@else
+@%:@ include <assert.h>
+@%:@endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+  
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@ifdef __STDC__
+@%:@ include <limits.h>
+@%:@else
+@%:@ include <assert.h>
+@%:@endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+@%:@include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_flag_spec_ld_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_caught_CXX_error" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+  # save warnings/boilerplate of simple test code
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  compiler=$CC
+  compiler_CXX=$CC
+  for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test "$GXX" = yes; then
+      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+    else
+      lt_prog_compiler_no_builtin_flag_CXX=
+    fi
+
+    if test "$GXX" = yes; then
+      # Set up default GNU C++ configuration
+
+      
+
+@%:@ Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test "$with_gnu_ld" = yes; then
+        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='${wl}'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+        else
+          whole_archive_flag_spec_CXX=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+    ld_shlibs_CXX=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+      aix[4-9]*)
+        if test "$host_cpu" = ia64; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=""
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # need to do runtime linking.
+          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        archive_cmds_CXX=''
+        hardcode_direct_CXX=yes
+        hardcode_direct_absolute_CXX=yes
+        hardcode_libdir_separator_CXX=':'
+        link_all_deplibs_CXX=yes
+        file_list_spec_CXX='${wl}-f,'
+
+        if test "$GXX" = yes; then
+          case $host_os in aix4.[012]|aix4.[012].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    hardcode_direct_CXX=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    hardcode_minus_L_CXX=yes
+	    hardcode_libdir_flag_spec_CXX='-L$libdir'
+	    hardcode_libdir_separator_CXX=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag="$shared_flag "'${wl}-G'
+	  fi
+        else
+          # not using gcc
+          if test "$host_cpu" = ia64; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test "$aix_use_runtimelinking" = yes; then
+	      shared_flag='${wl}-G'
+	    else
+	      shared_flag='${wl}-bM:SRE'
+	    fi
+          fi
+        fi
+
+        export_dynamic_flag_spec_CXX='${wl}-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        always_export_symbols_CXX=yes
+        if test "$aix_use_runtimelinking" = yes; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          allow_undefined_flag_CXX='-berok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  
+lt_aix_libpath_sed='
+    /Import File Strings/,/^$/ {
+	/^0/ {
+	    s/^0  *\(.*\)$/\1/
+	    p
+	}
+    }'
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then
+  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+          hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+        else
+          if test "$host_cpu" = ia64; then
+	    hardcode_libdir_flag_spec_CXX='${wl}-R $libdir:/usr/lib:/lib'
+	    allow_undefined_flag_CXX="-z nodefs"
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  
+lt_aix_libpath_sed='
+    /Import File Strings/,/^$/ {
+	/^0/ {
+	    s/^0  *\(.*\)$/\1/
+	    p
+	}
+    }'
+aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+# Check for a 64-bit object if we didn't find anything.
+if test -z "$aix_libpath"; then
+  aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    no_undefined_flag_CXX=' ${wl}-bernotok'
+	    allow_undefined_flag_CXX=' ${wl}-berok'
+	    if test "$with_gnu_ld" = yes; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      whole_archive_flag_spec_CXX='$convenience'
+	    fi
+	    archive_cmds_need_lc_CXX=yes
+	    # This is similar to how AIX traditionally builds its shared
+	    # libraries.
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  allow_undefined_flag_CXX=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  ld_shlibs_CXX=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+        # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+        # as there is no search path for DLLs.
+        hardcode_libdir_flag_spec_CXX='-L$libdir'
+        export_dynamic_flag_spec_CXX='${wl}--export-all-symbols'
+        allow_undefined_flag_CXX=unsupported
+        always_export_symbols_CXX=no
+        enable_shared_with_static_runtimes_CXX=yes
+
+        if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+          archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+          # If the export-symbols file already is a .def file (1st line
+          # is EXPORTS), use it as is; otherwise, prepend...
+          archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	    cp $export_symbols $output_objdir/$soname.def;
+          else
+	    echo EXPORTS > $output_objdir/$soname.def;
+	    cat $export_symbols >> $output_objdir/$soname.def;
+          fi~
+          $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+        else
+          ld_shlibs_CXX=no
+        fi
+        ;;
+      darwin* | rhapsody*)
+        
+  
+  archive_cmds_need_lc_CXX=no
+  hardcode_direct_CXX=no
+  hardcode_automatic_CXX=yes
+  hardcode_shlibpath_var_CXX=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+  else
+    whole_archive_flag_spec_CXX=''
+  fi
+  link_all_deplibs_CXX=yes
+  allow_undefined_flag_CXX="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds_CXX="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+       if test "$lt_cv_apple_cc_single_mod" != "yes"; then
+      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
+      archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+    fi
+
+  else
+  ld_shlibs_CXX=no
+  fi
+
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        ld_shlibs_CXX=no
+        ;;
+
+      freebsd-elf*)
+        archive_cmds_need_lc_CXX=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        ld_shlibs_CXX=yes
+        ;;
+
+      gnu*)
+        ;;
+
+      haiku*)
+        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        link_all_deplibs_CXX=yes
+        ;;
+
+      hpux9*)
+        hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        export_dynamic_flag_spec_CXX='${wl}-E'
+        hardcode_direct_CXX=yes
+        hardcode_minus_L_CXX=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            ld_shlibs_CXX=no
+            ;;
+          aCC*)
+            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test "$GXX" = yes; then
+              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              ld_shlibs_CXX=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test $with_gnu_ld = no; then
+	  hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+	  hardcode_libdir_separator_CXX=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      export_dynamic_flag_spec_CXX='${wl}-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct_CXX=no
+            hardcode_shlibpath_var_CXX=no
+            ;;
+          *)
+            hardcode_direct_CXX=yes
+            hardcode_direct_absolute_CXX=yes
+            hardcode_minus_L_CXX=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test $with_gnu_ld = no; then
+	        case $host_cpu in
+	          hppa*64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[3-9]*)
+	hardcode_direct_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	export_dynamic_flag_spec_CXX='${wl}-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	archive_expsym_cmds_CXX='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test "$with_gnu_ld" = no; then
+	        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	      else
+	        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+	      fi
+	    fi
+	    link_all_deplibs_CXX=yes
+	    ;;
+        esac
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        inherit_rpath_CXX=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    archive_cmds_need_lc_CXX=no
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+	      prelink_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      old_archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+		$RANLIB $oldlib'
+	      archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    hardcode_libdir_flag_spec_CXX='${wl}--rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    if test "x$supports_anon_versioning" = xyes; then
+	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+		echo "local: *; };" >> $output_objdir/$libname.ver~
+		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      no_undefined_flag_CXX=' -zdefs'
+	      archive_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      archive_expsym_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+	      hardcode_libdir_flag_spec_CXX='-R$libdir'
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	      compiler_needs_object_CXX=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	ld_shlibs_CXX=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  hardcode_libdir_flag_spec_CXX='-R$libdir'
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        ld_shlibs_CXX=yes
+	;;
+
+      openbsd2*)
+        # C++ shared libraries are fairly broken
+	ld_shlibs_CXX=no
+	;;
+
+      openbsd*)
+	if test -f /usr/libexec/ld.so; then
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	  hardcode_direct_absolute_CXX=yes
+	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
+	    export_dynamic_flag_spec_CXX='${wl}-E'
+	    whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+		;;
+	      *)
+	        allow_undefined_flag_CXX=' -expect_unresolved \*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+	          echo "-hidden">> $lib.exp~
+	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
+	          $RM $lib.exp'
+	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+		;;
+	    esac
+
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	      case $host in
+	        osf3*)
+	          archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	        *)
+	          archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	      hardcode_libdir_separator_CXX=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            archive_cmds_need_lc_CXX=yes
+	    no_undefined_flag_CXX=' -zdefs'
+	    archive_cmds_CXX='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    hardcode_libdir_flag_spec_CXX='-R$libdir'
+	    hardcode_shlibpath_var_CXX=no
+	    case $host_os in
+	      solaris2.[0-5] | solaris2.[0-5].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands `-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    link_all_deplibs_CXX=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        archive_cmds_CXX='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
+	        # platform.
+	        archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
+	      case $host_os in
+		solaris2.[0-5] | solaris2.[0-5].*) ;;
+		*)
+		  whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag_CXX='${wl}-z,text'
+      archive_cmds_need_lc_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We can NOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	no_undefined_flag_CXX='${wl}-z,text'
+	allow_undefined_flag_CXX='${wl}-z,nodefs'
+	archive_cmds_need_lc_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-R,$libdir'
+	hardcode_libdir_separator_CXX=':'
+	link_all_deplibs_CXX=yes
+	export_dynamic_flag_spec_CXX='${wl}-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+	      '"$old_archive_cmds_CXX"
+	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+	      '"$reload_cmds_CXX"
+	    ;;
+	  *)
+	    archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+    test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+    GCC_CXX="$GXX"
+    LD_CXX="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case $p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" ||
+          test $p = "-R"; then
+	 prev=$p
+	 continue
+       else
+	 prev=
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 case $p in
+	 -L* | -R*)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$compiler_lib_search_path_CXX"; then
+	     compiler_lib_search_path_CXX="${prev}${p}"
+	   else
+	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$postdeps_CXX"; then
+	   postdeps_CXX="${prev}${p}"
+	 else
+	   postdeps_CXX="${postdeps_CXX} ${prev}${p}"
+	 fi
+       fi
+       ;;
+
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 if test -z "$predep_objects_CXX"; then
+	   predep_objects_CXX="$p"
+	 else
+	   predep_objects_CXX="$predep_objects_CXX $p"
+	 fi
+       else
+	 if test -z "$postdep_objects_CXX"; then
+	   postdep_objects_CXX="$p"
+	 else
+	   postdep_objects_CXX="$postdep_objects_CXX $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  predep_objects_CXX=
+  postdep_objects_CXX=
+  postdeps_CXX=
+  ;;
+
+linux*)
+  case `$CC -V 2>&1 | sed 5q` in
+  *Sun\ C*)
+    # Sun C++ 5.9
+
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+
+solaris*)
+  case $cc_basename in
+  CC*)
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    # Adding this requires a known-good setup of shared libraries for
+    # Sun compiler versions before 5.6, else PIC objects from an old
+    # archive will be linked into the output, leading to subtle bugs.
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    
+    
+    
+
+
+    lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic_CXX='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static_CXX=
+      ;;
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	lt_prog_compiler_pic_CXX='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic_CXX='-fPIC -shared'
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[4-9]*)
+	# All AIX code is PIC.
+	if test "$host_cpu" = ia64; then
+	  # AIX 5 now supports IA64 processor
+	  lt_prog_compiler_static_CXX='-Bstatic'
+	else
+	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    if test "$host_cpu" != ia64; then
+	      lt_prog_compiler_pic_CXX='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      lt_prog_compiler_pic_CXX='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64 which still supported -KPIC.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fpic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-qpic'
+	    lt_prog_compiler_static_CXX='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      lt_prog_compiler_pic_CXX='-KPIC'
+	      lt_prog_compiler_static_CXX='-Bstatic'
+	      lt_prog_compiler_wl_CXX='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    lt_prog_compiler_pic_CXX='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        lt_prog_compiler_pic_CXX='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    lt_prog_compiler_wl_CXX='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    lt_prog_compiler_pic_CXX='-pic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	lt_prog_compiler_can_build_shared_CXX=no
+	;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX@&t@ -DPIC"
+    ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_prog_compiler_pic_CXX" >&6; }
+
+
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works_CXX=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX@&t@ -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works_CXX" = xyes; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works_CXX=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works_CXX=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works_CXX=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works_CXX" = xyes; then
+    :
+else
+    lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  case $host_os in
+  aix[4-9]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    # Also, AIX nm treats weak defined symbols like other global defined
+    # symbols, whereas GNU nm marks them as "W".
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX="$ltdll_cmds"
+  ;;
+  cygwin* | mingw* | cegcc*)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;/^.*[ ]__nm__/s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  ;;
+  esac
+  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl_CXX
+	  pic_flag=$lt_prog_compiler_pic_CXX
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+	  allow_undefined_flag_CXX=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc_CXX=no
+	  else
+	    lt_cv_archive_cmds_need_lc_CXX=yes
+	  fi
+	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$host_os in
+  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    ;;
+
+  *)
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    ;;
+  esac
+  dynamic_linker='Win32 ld.exe'
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/beos/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+
+# uclinux* changes (here and below) have been submitted to the libtool
+# project, but have not yet been accepted: they are GCC-local changes
+# for the time being.  (See
+# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+   test -n "$runpath_var_CXX" ||
+   test "X$hardcode_automatic_CXX" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct_CXX" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" != no &&
+     test "$hardcode_minus_L_CXX" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test "$hardcode_action_CXX" = relink ||
+   test "$inherit_rpath_CXX" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+    
+
+
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test "$_lt_caught_CXX_error" != yes
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+       
+       
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+
+
+
+case $host in
+  *-cygwin* | *-mingw*)
+    # 'host' will be top-level target in the case of a target lib,
+    # we must compare to with_cross_host to decide if this is a native
+    # or cross-compiler and select where to install dlls appropriately.
+    if test -n "$with_cross_host" &&
+	test x"$with_cross_host" != x"no"; then
+      lt_host_flags='-no-undefined -bindir "$(toolexeclibdir)"';
+    else
+      lt_host_flags='-no-undefined -bindir "$(bindir)"';
+    fi
+    ;;
+  *)
+    lt_host_flags=
+    ;;
+esac
+
+
+
+
+
+
+if test "$enable_vtable_verify" = yes; then
+  predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o"
+  postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o"
+fi
+
+
+# libtool variables for C++ shared and position-independent compiles.
+#
+# Use glibcxx_lt_pic_flag to designate the automake variable
+# used to encapsulate the default libtool approach to creating objects
+# with position-independent code. Default: -prefer-pic.
+#
+# Use glibcxx_compiler_shared_flag to designate a compile-time flags for
+# creating shared objects. Default: -D_GLIBCXX_SHARED.
+#
+# Use glibcxx_compiler_pic_flag to designate a compile-time flags for
+# creating position-independent objects. This varies with the target
+# hardware and operating system, but is often: -DPIC -fPIC.
+if test "$enable_shared" = yes; then
+  glibcxx_lt_pic_flag="-prefer-pic"
+  glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX"
+  glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED"
+
+else
+  glibcxx_lt_pic_flag=
+  glibcxx_compiler_pic_flag=
+  glibcxx_compiler_shared_flag=
+fi
+
+
+
+
+# Override the libtool's pic_flag and pic_mode.
+# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
+# NB: this impacts --with-pic and --without-pic.
+lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag"
+pic_mode='default'
+
+# Eliminate -lstdc++ addition to postdeps for cross compiles.
+postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
+
+# Possibly disable most of the library.
+## TODO: Consider skipping unncessary tests altogether in this case, rather
+## than just ignoring the results.  Faster /and/ more correct, win win.
+
+  @%:@ Check whether --enable-hosted-libstdcxx was given.
+if test "${enable_hosted_libstdcxx+set}" = set; then :
+  enableval=$enable_hosted_libstdcxx; 
+else
+  case "$host" in
+	arm*-*-symbianelf*)
+	    enable_hosted_libstdcxx=no
+	    ;;
+	*)
+	    enable_hosted_libstdcxx=yes
+	    ;;
+     esac
+fi
+
+  freestanding_flags=
+  if test "$enable_hosted_libstdcxx" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: Only freestanding libraries will be built" >&5
+$as_echo "$as_me: Only freestanding libraries will be built" >&6;}
+    is_hosted=no
+    hosted_define=0
+    enable_abi_check=no
+    enable_libstdcxx_pch=no
+    if test "x$with_headers" = xno; then
+      freestanding_flags="-ffreestanding"
+    fi
+  else
+    is_hosted=yes
+    hosted_define=1
+  fi
+    
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_HOSTED $hosted_define
+_ACEOF
+
+  FREESTANDING_FLAGS="$freestanding_flags"
+  
+
+
+# Enable descriptive messages to standard output on termination.
+
+  @%:@ Check whether --enable-libstdcxx-verbose was given.
+if test "${enable_libstdcxx_verbose+set}" = set; then :
+  enableval=$enable_libstdcxx_verbose; 
+else
+  enable_libstdcxx_verbose=yes
+fi
+
+  if test x"$enable_libstdcxx_verbose" = xyes; then
+    verbose_define=1
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: verbose termination messages are disabled" >&5
+$as_echo "$as_me: verbose termination messages are disabled" >&6;}
+    verbose_define=0
+  fi
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_VERBOSE $verbose_define
+_ACEOF
+
+
+
+# Enable compiler support that doesn't require linking.
+
+   @%:@ Check whether --enable-libstdcxx-pch was given.
+if test "${enable_libstdcxx_pch+set}" = set; then :
+  enableval=$enable_libstdcxx_pch; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-pch must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_libstdcxx_pch=$is_hosted
+fi
+
+
+  if test $enable_libstdcxx_pch = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler with PCH support" >&5
+$as_echo_n "checking for compiler with PCH support... " >&6; }
+if ${glibcxx_cv_prog_CXX_pch+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_CXXFLAGS="$CXXFLAGS"
+       CXXFLAGS="$CXXFLAGS -Werror -Winvalid-pch -Wno-deprecated"
+       
+       ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+       echo '#include <math.h>' > conftest.h
+       if $CXX $CXXFLAGS $CPPFLAGS -x c++-header conftest.h \
+			  -o conftest.h.gch 1>&5 2>&1 &&
+		echo '#error "pch failed"' > conftest.h &&
+	  echo '#include "conftest.h"' > conftest.cc &&
+	       $CXX -c $CXXFLAGS $CPPFLAGS conftest.cc 1>&5 2>&1 ;
+       then
+	 glibcxx_cv_prog_CXX_pch=yes
+       else
+	 glibcxx_cv_prog_CXX_pch=no
+       fi
+       rm -f conftest*
+       CXXFLAGS=$ac_save_CXXFLAGS
+       ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_prog_CXX_pch" >&5
+$as_echo "$glibcxx_cv_prog_CXX_pch" >&6; }
+    enable_libstdcxx_pch=$glibcxx_cv_prog_CXX_pch
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for enabled PCH" >&5
+$as_echo_n "checking for enabled PCH... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_pch" >&5
+$as_echo "$enable_libstdcxx_pch" >&6; }
+
+    
+  if test $enable_libstdcxx_pch = yes; then
+    glibcxx_PCHFLAGS="-include bits/stdc++.h"
+  else
+    glibcxx_PCHFLAGS=""
+  fi
+  
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for thread model used by GCC" >&5
+$as_echo_n "checking for thread model used by GCC... " >&6; }
+  target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $target_thread_file" >&5
+$as_echo "$target_thread_file" >&6; }
+  
+case $target_thread_file in
+    aix)	thread_header=config/rs6000/gthr-aix.h ;;
+    dce)	thread_header=config/pa/gthr-dce.h ;;
+    gcn)	thread_header=config/gcn/gthr-gcn.h ;;
+    lynx)	thread_header=config/gthr-lynx.h ;;
+    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
+    posix)	thread_header=gthr-posix.h ;;
+    rtems)	thread_header=config/gthr-rtems.h ;;
+    single)	thread_header=gthr-single.h ;;
+    tpf)	thread_header=config/s390/gthr-tpf.h ;;
+    vxworks)	thread_header=config/gthr-vxworks.h ;;
+    win32)	thread_header=config/i386/gthr-win32.h ;;
+esac
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  old_CXXFLAGS="$CXXFLAGS"
+
+  # Do link tests if possible, instead asm tests, limited to some platforms
+  # see discussion in PR target/40134, PR libstdc++/40133 and the thread
+  # starting at http://gcc.gnu.org/ml/gcc-patches/2009-07/msg00322.html
+  atomic_builtins_link_tests=no
+  if test x$gcc_no_link != xyes; then
+    # Can do link tests. Limit to some tested platforms
+    case "$host" in
+      *-*-linux* | *-*-uclinux* | *-*-kfreebsd*-gnu | *-*-gnu*)
+	atomic_builtins_link_tests=yes
+	;;
+    esac
+  fi
+
+  if test x$atomic_builtins_link_tests = xyes; then
+
+  # Do link tests.
+
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for bool" >&5
+$as_echo_n "checking for atomic builtins for bool... " >&6; }
+if ${glibcxx_cv_atomic_bool+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ 
+int
+main ()
+{
+typedef bool atomic_type;
+       atomic_type c1;
+       atomic_type c2;
+       atomic_type c3(0);
+       // N.B. __atomic_fetch_add is not supported for bool.
+       __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+				   __ATOMIC_RELAXED);
+       __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+       __atomic_load_n(&c1, __ATOMIC_RELAXED);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_atomic_bool=yes
+else
+  glibcxx_cv_atomic_bool=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_bool" >&5
+$as_echo "$glibcxx_cv_atomic_bool" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for short" >&5
+$as_echo_n "checking for atomic builtins for short... " >&6; }
+if ${glibcxx_cv_atomic_short+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ 
+int
+main ()
+{
+typedef short atomic_type;
+       atomic_type c1;
+       atomic_type c2;
+       atomic_type c3(0);
+       __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+       __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+				   __ATOMIC_RELAXED);
+       __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+       __atomic_load_n(&c1, __ATOMIC_RELAXED);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_atomic_short=yes
+else
+  glibcxx_cv_atomic_short=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_short" >&5
+$as_echo "$glibcxx_cv_atomic_short" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for int" >&5
+$as_echo_n "checking for atomic builtins for int... " >&6; }
+if ${glibcxx_cv_atomic_int+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ 
+int
+main ()
+{
+typedef int atomic_type;
+       atomic_type c1;
+       atomic_type c2;
+       atomic_type c3(0);
+       __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+       __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+				   __ATOMIC_RELAXED);
+       __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+       __atomic_load_n(&c1, __ATOMIC_RELAXED);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_atomic_int=yes
+else
+  glibcxx_cv_atomic_int=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_int" >&5
+$as_echo "$glibcxx_cv_atomic_int" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for long long" >&5
+$as_echo_n "checking for atomic builtins for long long... " >&6; }
+if ${glibcxx_cv_atomic_long_long+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ 
+int
+main ()
+{
+typedef long long atomic_type;
+       atomic_type c1;
+       atomic_type c2;
+       atomic_type c3(0);
+       __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+       __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+				   __ATOMIC_RELAXED);
+       __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+       __atomic_load_n(&c1, __ATOMIC_RELAXED);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_atomic_long_long=yes
+else
+  glibcxx_cv_atomic_long_long=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_long_long" >&5
+$as_echo "$glibcxx_cv_atomic_long_long" >&6; }
+
+  else
+
+  # Do asm tests.
+
+  # Compile unoptimized.
+  CXXFLAGS='-O0 -S'
+
+  # Fake what AC_TRY_COMPILE does.
+
+    cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+int main()
+{
+  typedef bool atomic_type;
+  atomic_type c1;
+  atomic_type c2;
+  atomic_type c3(0);
+  // N.B. __atomic_fetch_add is not supported for bool.
+  __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+			      __ATOMIC_RELAXED);
+  __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+  __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+  return 0;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for bool" >&5
+$as_echo_n "checking for atomic builtins for bool... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+	glibcxx_cv_atomic_bool=no
+      else
+	glibcxx_cv_atomic_bool=yes
+      fi
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_bool" >&5
+$as_echo "$glibcxx_cv_atomic_bool" >&6; }
+    rm -f conftest*
+
+    cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+int main()
+{
+  typedef short atomic_type;
+  atomic_type c1;
+  atomic_type c2;
+  atomic_type c3(0);
+  __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+  __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+			      __ATOMIC_RELAXED);
+  __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+  __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+  return 0;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for short" >&5
+$as_echo_n "checking for atomic builtins for short... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+	glibcxx_cv_atomic_short=no
+      else
+	glibcxx_cv_atomic_short=yes
+      fi
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_short" >&5
+$as_echo "$glibcxx_cv_atomic_short" >&6; }
+    rm -f conftest*
+
+    cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+int main()
+{
+  // NB: _Atomic_word not necessarily int.
+  typedef int atomic_type;
+  atomic_type c1;
+  atomic_type c2;
+  atomic_type c3(0);
+  __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+  __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+			      __ATOMIC_RELAXED);
+  __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+  __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+  return 0;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for int" >&5
+$as_echo_n "checking for atomic builtins for int... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+	glibcxx_cv_atomic_int=no
+      else
+	glibcxx_cv_atomic_int=yes
+      fi
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_int" >&5
+$as_echo "$glibcxx_cv_atomic_int" >&6; }
+    rm -f conftest*
+
+    cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+int main()
+{
+  typedef long long atomic_type;
+  atomic_type c1;
+  atomic_type c2;
+  atomic_type c3(0);
+  __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+  __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+			      __ATOMIC_RELAXED);
+  __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+  __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+  return 0;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atomic builtins for long long" >&5
+$as_echo_n "checking for atomic builtins for long long... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+	glibcxx_cv_atomic_long_long=no
+      else
+	glibcxx_cv_atomic_long_long=yes
+      fi
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_atomic_long_long" >&5
+$as_echo "$glibcxx_cv_atomic_long_long" >&6; }
+    rm -f conftest*
+
+  fi
+
+  CXXFLAGS="$old_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+  # Set atomicity_dir to builtins if all but the long long test above passes,
+  # or if the builtins were already chosen (e.g. by configure.host).
+  if { test "$glibcxx_cv_atomic_bool" = yes \
+     && test "$glibcxx_cv_atomic_short" = yes \
+     && test "$glibcxx_cv_atomic_int" = yes; } \
+     || test "$atomicity_dir" = "cpu/generic/atomicity_builtins"; then
+    
+$as_echo "@%:@define _GLIBCXX_ATOMIC_BUILTINS 1" >>confdefs.h
+
+    atomicity_dir=cpu/generic/atomicity_builtins
+  fi
+
+  # If still generic, set to mutex.
+  if test $atomicity_dir = "cpu/generic" ; then
+    atomicity_dir=cpu/generic/atomicity_mutex
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No native atomic operations are provided for this platform." >&5
+$as_echo "$as_me: WARNING: No native atomic operations are provided for this platform." >&2;}
+      if test "x$target_thread_file" = xsingle; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: They cannot be faked when thread support is disabled." >&5
+$as_echo "$as_me: WARNING: They cannot be faked when thread support is disabled." >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Thread-safety of certain classes is not guaranteed." >&5
+$as_echo "$as_me: WARNING: Thread-safety of certain classes is not guaranteed." >&2;}
+      else
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: They will be faked using a mutex." >&5
+$as_echo "$as_me: WARNING: They will be faked using a mutex." >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Performance of certain classes will degrade as a result." >&5
+$as_echo "$as_me: WARNING: Performance of certain classes will degrade as a result." >&2;}
+      fi
+  fi
+
+
+
+
+  
+@%:@ Check whether --with-libstdcxx-lock-policy was given.
+if test "${with_libstdcxx_lock_policy+set}" = set; then :
+  withval=$with_libstdcxx_lock_policy; libstdcxx_atomic_lock_policy=$withval
+else
+  libstdcxx_atomic_lock_policy=auto
+fi
+
+
+  case "$libstdcxx_atomic_lock_policy" in
+    atomic|mutex|auto) ;;
+    *) as_fn_error $? "Invalid argument for --with-libstdcxx-lock-policy" "$LINENO" 5 ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lock policy for shared_ptr reference counts" >&5
+$as_echo_n "checking for lock policy for shared_ptr reference counts... " >&6; }
+
+  if test x"$libstdcxx_atomic_lock_policy" = x"auto"; then
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    ac_save_CXXFLAGS="$CXXFLAGS"
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+    #if defined __riscv
+    # error "Defaulting to mutex-based locks for ABI compatibility"
+    #endif
+    #if ! defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
+    # error "No 2-byte compare-and-swap"
+    #elif ! defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+    # error "No 4-byte compare-and-swap"
+    #endif
+    
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  libstdcxx_atomic_lock_policy=atomic
+else
+  libstdcxx_atomic_lock_policy=mutex
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  fi
+
+  if test x"$libstdcxx_atomic_lock_policy" = x"atomic"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: atomic" >&5
+$as_echo "atomic" >&6; }
+    
+$as_echo "@%:@define HAVE_ATOMIC_LOCK_POLICY 1" >>confdefs.h
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: mutex" >&5
+$as_echo "mutex" >&6; }
+  fi
+
+
+
+
+  # Fake what AC_TRY_COMPILE does, without linking as this is
+  # unnecessary for this test.
+
+    cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+int main()
+{
+  _Decimal32 d1;
+  _Decimal64 d2;
+  _Decimal128 d3;
+  return 0;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO/IEC TR 24733 " >&5
+$as_echo_n "checking for ISO/IEC TR 24733 ... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      
+$as_echo "@%:@define _GLIBCXX_USE_DECIMAL_FLOAT 1" >>confdefs.h
+
+      enable_dfp=yes
+    else
+      enable_dfp=no
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_dfp" >&5
+$as_echo "$enable_dfp" >&6; }
+    rm -f conftest*
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+  # Fake what AC_TRY_COMPILE does, without linking as this is
+  # unnecessary for this test.
+
+  cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+template<typename T1, typename T2>
+  struct same
+  { typedef T2 type; };
+
+template<typename T>
+  struct same<T, T>;
+
+int main()
+{
+  typename same<double, __float128>::type      f1;
+  typename same<long double, __float128>::type f2;
+}
+EOF
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __float128" >&5
+$as_echo_n "checking for __float128... " >&6; }
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+      enable_float128=yes
+    else
+      enable_float128=no
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_float128" >&5
+$as_echo "$enable_float128" >&6; }
+      
+    rm -f conftest*
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+if test "$enable_float128" = yes; then
+  port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
+fi
+
+# Checks for compiler support that doesn't require linking.
+
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  
+
+
+# Enable all the variable C++ runtime options that don't require linking.
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for underlying I/O to use" >&5
+$as_echo_n "checking for underlying I/O to use... " >&6; }
+   @%:@ Check whether --enable-cstdio was given.
+if test "${enable_cstdio+set}" = set; then :
+  enableval=$enable_cstdio; 
+      case "$enableval" in
+       stdio|stdio_posix|stdio_pure) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable cstdio" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_cstdio=stdio
+fi
+
+
+
+  # The only available I/O model is based on stdio, via basic_file_stdio.
+  # The default "stdio" is actually "stdio + POSIX" because it uses fdopen(3)
+  # to get a file descriptor and then uses read(3) and write(3) with it.
+  # The "stdio_pure" model doesn't use fdopen and only uses FILE* for I/O.
+  case ${enable_cstdio} in
+    stdio*)
+      CSTDIO_H=config/io/c_io_stdio.h
+      BASIC_FILE_H=config/io/basic_file_stdio.h
+      BASIC_FILE_CC=config/io/basic_file_stdio.cc
+
+      if test "x$enable_cstdio" = "xstdio_pure" ; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: stdio (without POSIX read/write)" >&5
+$as_echo "stdio (without POSIX read/write)" >&6; }
+	
+$as_echo "@%:@define _GLIBCXX_USE_STDIO_PURE 1" >>confdefs.h
+
+      else
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: stdio (with POSIX read/write)" >&5
+$as_echo "stdio (with POSIX read/write)" >&6; }
+      fi
+      ;;
+  esac
+
+  
+  
+  
+
+
+   @%:@ Check whether --enable-clocale was given.
+if test "${enable_clocale+set}" = set; then :
+  enableval=$enable_clocale; 
+      case "$enableval" in
+       generic|gnu|ieee_1003.1-2001|newlib|yes|no|auto) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable clocale" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_clocale=auto
+fi
+
+
+
+  # Deal with gettext issues.  Default to not using it (=no) until we detect
+  # support for it later.  Let the user turn it off via --e/d, but let that
+  # default to on for easier handling.
+  USE_NLS=no
+  @%:@ Check whether --enable-nls was given.
+if test "${enable_nls+set}" = set; then :
+  enableval=$enable_nls; 
+else
+  enable_nls=yes
+fi
+
+
+  # Either a known package, or "auto"
+  if test $enable_clocale = no || test $enable_clocale = yes; then
+     enable_clocale=auto
+  fi
+  enable_clocale_flag=$enable_clocale
+
+  # Probe for locale model to use if none specified.
+  # Default to "generic".
+  if test $enable_clocale_flag = auto; then
+    case ${target_os} in
+      linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
+	enable_clocale_flag=gnu
+	;;
+      darwin*)
+	enable_clocale_flag=darwin
+	;;
+      vxworks*)
+	enable_clocale_flag=vxworks
+	;;
+      dragonfly* | freebsd*)
+	enable_clocale_flag=dragonfly
+	;;
+      openbsd*)
+	enable_clocale_flag=newlib
+	;;
+      *)
+	if test x"$with_newlib" = x"yes"; then
+	  enable_clocale_flag=newlib
+	else
+	  enable_clocale_flag=generic
+	fi
+	;;
+    esac
+  fi
+
+  # Sanity check model, and test for special functionality.
+  if test $enable_clocale_flag = gnu; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+    #include <features.h>
+    #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(__UCLIBC__)
+      _GLIBCXX_ok
+    #endif
+    
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "_GLIBCXX_ok" >/dev/null 2>&1; then :
+  enable_clocale_flag=gnu
+else
+  enable_clocale_flag=generic
+fi
+rm -f conftest*
+
+
+    # Set it to scream when it hurts.
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS="-Wimplicit-function-declaration -Werror"
+
+    # Use strxfrm_l if available.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+     		    #include <string.h>
+		    #include <locale.h>
+int
+main ()
+{
+char s[128]; __locale_t loc; strxfrm_l(s, "C", 5, loc);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_STRXFRM_L 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    # Use strerror_l if available.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+		    #include <string.h>
+		    #include <locale.h>
+int
+main ()
+{
+__locale_t loc; strerror_l(5, loc);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_STRERROR_L 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CFLAGS="$ac_save_CFLAGS"
+  fi
+
+  # Perhaps use strerror_r if available, and strerror_l isn't.
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS="-Wimplicit-function-declaration -Werror"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+	     	  #include <string.h>
+		  #include <locale.h>
+int
+main ()
+{
+char s[128]; strerror_r(5, s, 128);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_STRERROR_R 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS="$ac_save_CFLAGS"
+
+  # Set configure bits for specified locale package
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C locale to use" >&5
+$as_echo_n "checking for C locale to use... " >&6; }
+  case ${enable_clocale_flag} in
+    generic)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: generic" >&5
+$as_echo "generic" >&6; }
+
+      CLOCALE_H=config/locale/generic/c_locale.h
+      CLOCALE_CC=config/locale/generic/c_locale.cc
+      CCODECVT_CC=config/locale/generic/codecvt_members.cc
+      CCOLLATE_CC=config/locale/generic/collate_members.cc
+      CCTYPE_CC=config/locale/generic/ctype_members.cc
+      CMESSAGES_H=config/locale/generic/messages_members.h
+      CMESSAGES_CC=config/locale/generic/messages_members.cc
+      CMONEY_CC=config/locale/generic/monetary_members.cc
+      CNUMERIC_CC=config/locale/generic/numeric_members.cc
+      CTIME_H=config/locale/generic/time_members.h
+      CTIME_CC=config/locale/generic/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+    darwin)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: darwin" >&5
+$as_echo "darwin" >&6; }
+
+      CLOCALE_H=config/locale/generic/c_locale.h
+      CLOCALE_CC=config/locale/generic/c_locale.cc
+      CCODECVT_CC=config/locale/generic/codecvt_members.cc
+      CCOLLATE_CC=config/locale/generic/collate_members.cc
+      CCTYPE_CC=config/locale/darwin/ctype_members.cc
+      CMESSAGES_H=config/locale/generic/messages_members.h
+      CMESSAGES_CC=config/locale/generic/messages_members.cc
+      CMONEY_CC=config/locale/generic/monetary_members.cc
+      CNUMERIC_CC=config/locale/generic/numeric_members.cc
+      CTIME_H=config/locale/generic/time_members.h
+      CTIME_CC=config/locale/generic/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+    vxworks)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: vxworks" >&5
+$as_echo "vxworks" >&6; }
+
+      CLOCALE_H=config/locale/generic/c_locale.h
+      CLOCALE_CC=config/locale/generic/c_locale.cc
+      CCODECVT_CC=config/locale/generic/codecvt_members.cc
+      CCOLLATE_CC=config/locale/generic/collate_members.cc
+      CCTYPE_CC=config/locale/vxworks/ctype_members.cc
+      CMESSAGES_H=config/locale/generic/messages_members.h
+      CMESSAGES_CC=config/locale/generic/messages_members.cc
+      CMONEY_CC=config/locale/generic/monetary_members.cc
+      CNUMERIC_CC=config/locale/generic/numeric_members.cc
+      CTIME_H=config/locale/generic/time_members.h
+      CTIME_CC=config/locale/generic/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+    dragonfly)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: dragonfly or freebsd" >&5
+$as_echo "dragonfly or freebsd" >&6; }
+
+      CLOCALE_H=config/locale/dragonfly/c_locale.h
+      CLOCALE_CC=config/locale/dragonfly/c_locale.cc
+      CCODECVT_CC=config/locale/dragonfly/codecvt_members.cc
+      CCOLLATE_CC=config/locale/dragonfly/collate_members.cc
+      CCTYPE_CC=config/locale/dragonfly/ctype_members.cc
+      CMESSAGES_H=config/locale/generic/messages_members.h
+      CMESSAGES_CC=config/locale/generic/messages_members.cc
+      CMONEY_CC=config/locale/dragonfly/monetary_members.cc
+      CNUMERIC_CC=config/locale/dragonfly/numeric_members.cc
+      CTIME_H=config/locale/dragonfly/time_members.h
+      CTIME_CC=config/locale/dragonfly/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+
+    gnu)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: gnu" >&5
+$as_echo "gnu" >&6; }
+
+      # Declare intention to use gettext, and add support for specific
+      # languages.
+      # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
+      ALL_LINGUAS="de fr"
+
+      # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
+      # Extract the first word of "msgfmt", so it can be a program name with args.
+set dummy msgfmt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_check_msgfmt+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$check_msgfmt"; then
+  ac_cv_prog_check_msgfmt="$check_msgfmt" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_check_msgfmt="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_check_msgfmt" && ac_cv_prog_check_msgfmt="no"
+fi
+fi
+check_msgfmt=$ac_cv_prog_check_msgfmt
+if test -n "$check_msgfmt"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $check_msgfmt" >&5
+$as_echo "$check_msgfmt" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+      if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
+	USE_NLS=yes
+      fi
+      # Export the build objects.
+      for ling in $ALL_LINGUAS; do \
+	glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
+	glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
+      done
+      
+      
+
+      CLOCALE_H=config/locale/gnu/c_locale.h
+      CLOCALE_CC=config/locale/gnu/c_locale.cc
+      CCODECVT_CC=config/locale/gnu/codecvt_members.cc
+      CCOLLATE_CC=config/locale/gnu/collate_members.cc
+      CCTYPE_CC=config/locale/gnu/ctype_members.cc
+      CMESSAGES_H=config/locale/gnu/messages_members.h
+      CMESSAGES_CC=config/locale/gnu/messages_members.cc
+      CMONEY_CC=config/locale/gnu/monetary_members.cc
+      CNUMERIC_CC=config/locale/gnu/numeric_members.cc
+      CTIME_H=config/locale/gnu/time_members.h
+      CTIME_CC=config/locale/gnu/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
+      ;;
+    ieee_1003.1-2001)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: IEEE 1003.1" >&5
+$as_echo "IEEE 1003.1" >&6; }
+
+      CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
+      CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
+      CCODECVT_CC=config/locale/generic/codecvt_members.cc
+      CCOLLATE_CC=config/locale/generic/collate_members.cc
+      CCTYPE_CC=config/locale/generic/ctype_members.cc
+      CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
+      CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
+      CMONEY_CC=config/locale/generic/monetary_members.cc
+      CNUMERIC_CC=config/locale/generic/numeric_members.cc
+      CTIME_H=config/locale/generic/time_members.h
+      CTIME_CC=config/locale/generic/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+    newlib)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: newlib" >&5
+$as_echo "newlib" >&6; }
+
+      CLOCALE_H=config/locale/generic/c_locale.h
+      CLOCALE_CC=config/locale/generic/c_locale.cc
+      CCODECVT_CC=config/locale/generic/codecvt_members.cc
+      CCOLLATE_CC=config/locale/generic/collate_members.cc
+      CCTYPE_CC=config/locale/newlib/ctype_members.cc
+      CMESSAGES_H=config/locale/generic/messages_members.h
+      CMESSAGES_CC=config/locale/generic/messages_members.cc
+      CMONEY_CC=config/locale/generic/monetary_members.cc
+      CNUMERIC_CC=config/locale/generic/numeric_members.cc
+      CTIME_H=config/locale/generic/time_members.h
+      CTIME_CC=config/locale/generic/time_members.cc
+      CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+      ;;
+  esac
+
+  # This is where the testsuite looks for locale catalogs, using the
+  # -DLOCALEDIR define during testsuite compilation.
+  glibcxx_localedir=${glibcxx_builddir}/po/share/locale
+  
+
+  # A standalone libintl (e.g., GNU libintl) may be in use.
+  if test $USE_NLS = yes; then
+    for ac_header in libintl.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "libintl.h" "ac_cv_header_libintl_h" "$ac_includes_default"
+if test "x$ac_cv_header_libintl_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIBINTL_H 1
+_ACEOF
+ 
+else
+  USE_NLS=no
+fi
+
+done
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gettext" >&5
+$as_echo_n "checking for library containing gettext... " >&6; }
+if ${ac_cv_search_gettext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gettext ();
+int
+main ()
+{
+return gettext ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' intl; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_gettext=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_gettext+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_gettext+:} false; then :
+  
+else
+  ac_cv_search_gettext=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gettext" >&5
+$as_echo "$ac_cv_search_gettext" >&6; }
+ac_res=$ac_cv_search_gettext
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  
+else
+  USE_NLS=no
+fi
+
+  fi
+  if test $USE_NLS = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_NLS 1" >>confdefs.h
+
+  fi
+
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::allocator base class" >&5
+$as_echo_n "checking for std::allocator base class... " >&6; }
+   @%:@ Check whether --enable-libstdcxx-allocator was given.
+if test "${enable_libstdcxx_allocator+set}" = set; then :
+  enableval=$enable_libstdcxx_allocator; 
+      case "$enableval" in
+       new|malloc|yes|no|auto) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable libstdcxx-allocator" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_libstdcxx_allocator=auto
+fi
+
+
+
+  # If they didn't use this option switch, or if they specified --enable
+  # with no specific model, we'll have to look for one.  If they
+  # specified --disable (???), do likewise.
+  if test $enable_libstdcxx_allocator = no ||
+     test $enable_libstdcxx_allocator = yes;
+  then
+     enable_libstdcxx_allocator=auto
+  fi
+
+  # Either a known package, or "auto". Auto implies the default choice
+  # for a particular platform.
+  enable_libstdcxx_allocator_flag=$enable_libstdcxx_allocator
+
+  # Probe for host-specific support if no specific model is specified.
+  # Default to "new".
+  if test $enable_libstdcxx_allocator_flag = auto; then
+    case ${target_os} in
+      linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
+	enable_libstdcxx_allocator_flag=new
+	;;
+      *)
+	enable_libstdcxx_allocator_flag=new
+	;;
+    esac
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_allocator_flag" >&5
+$as_echo "$enable_libstdcxx_allocator_flag" >&6; }
+
+
+  # Set configure bits for specified locale package
+  case ${enable_libstdcxx_allocator_flag} in
+    malloc)
+      ALLOCATOR_H=config/allocator/malloc_allocator_base.h
+      ALLOCATOR_NAME=__gnu_cxx::malloc_allocator
+      ;;
+    new)
+      ALLOCATOR_H=config/allocator/new_allocator_base.h
+      ALLOCATOR_NAME=__gnu_cxx::new_allocator
+      ;;
+  esac
+
+    
+  
+  
+
+
+   @%:@ Check whether --enable-cheaders-obsolete was given.
+if test "${enable_cheaders_obsolete+set}" = set; then :
+  enableval=$enable_cheaders_obsolete; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable cheaders-obsolete must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_cheaders_obsolete=no
+fi
+
+
+   @%:@ Check whether --enable-cheaders was given.
+if test "${enable_cheaders+set}" = set; then :
+  enableval=$enable_cheaders; 
+      case "$enableval" in
+       c|c_global|c_std) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable cheaders" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_cheaders=$c_model
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: \"C\" header strategy set to $enable_cheaders" >&5
+$as_echo "$as_me: \"C\" header strategy set to $enable_cheaders" >&6;}
+  if test $enable_cheaders = c_std ; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: the --enable-cheaders=c_std configuration is obsolete, c_global should be used instead" >&5
+$as_echo "$as_me: WARNING: the --enable-cheaders=c_std configuration is obsolete, c_global should be used instead" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: if you are unable to use c_global please report a bug or inform libstdc++@gcc.gnu.org" >&5
+$as_echo "$as_me: WARNING: if you are unable to use c_global please report a bug or inform libstdc++@gcc.gnu.org" >&2;}
+    if test $enable_cheaders_obsolete != yes ; then
+      as_fn_error $? "use --enable-cheaders-obsolete to use c_std \"C\" headers" "$LINENO" 5
+    fi
+  fi
+
+  C_INCLUDE_DIR='${glibcxx_srcdir}/include/'$enable_cheaders
+
+  # Allow overrides to configure.host here.
+  if test $enable_cheaders = c_global; then
+     c_compatibility=yes
+  fi
+
+  
+    
+    
+    
+    
+  
+   @%:@ Check whether --enable-long-long was given.
+if test "${enable_long_long+set}" = set; then :
+  enableval=$enable_long_long; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable long-long must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_long_long=yes
+fi
+
+
+  if test $enable_long_long = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_LONG_LONG 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for enabled long long specializations" >&5
+$as_echo_n "checking for enabled long long specializations... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_long_long" >&5
+$as_echo "$enable_long_long" >&6; }
+
+
+   @%:@ Check whether --enable-wchar_t was given.
+if test "${enable_wchar_t+set}" = set; then :
+  enableval=$enable_wchar_t; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable wchar_t must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_wchar_t=yes
+fi
+
+
+
+  # Test wchar.h for mbstate_t, which is needed for char_traits and fpos.
+  for ac_header in wchar.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "wchar.h" "ac_cv_header_wchar_h" "$ac_includes_default"
+if test "x$ac_cv_header_wchar_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_WCHAR_H 1
+_ACEOF
+ ac_has_wchar_h=yes
+else
+  ac_has_wchar_h=no
+fi
+
+done
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mbstate_t" >&5
+$as_echo_n "checking for mbstate_t... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+int
+main ()
+{
+mbstate_t teststate;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  have_mbstate_t=yes
+else
+  have_mbstate_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_mbstate_t" >&5
+$as_echo "$have_mbstate_t" >&6; }
+  if test x"$have_mbstate_t" = xyes; then
+    
+$as_echo "@%:@define HAVE_MBSTATE_T 1" >>confdefs.h
+
+  fi
+
+  # Test it always, for use in GLIBCXX_ENABLE_C99, together with
+  # ac_has_wchar_h.
+  for ac_header in wctype.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "wctype.h" "ac_cv_header_wctype_h" "$ac_includes_default"
+if test "x$ac_cv_header_wctype_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_WCTYPE_H 1
+_ACEOF
+ ac_has_wctype_h=yes
+else
+  ac_has_wctype_h=no
+fi
+
+done
+
+
+  if test x"$enable_wchar_t" = x"yes"; then
+
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+    if test x"$ac_has_wchar_h" = xyes &&
+       test x"$ac_has_wctype_h" = xyes; then
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+		      #include <stddef.h>
+		      wint_t i;
+		      long l = WEOF;
+		      long j = WCHAR_MIN;
+		      long k = WCHAR_MAX;
+		      namespace test
+		      {
+			using ::btowc;
+			using ::fgetwc;
+			using ::fgetws;
+			using ::fputwc;
+			using ::fputws;
+			using ::fwide;
+			using ::fwprintf;
+			using ::fwscanf;
+			using ::getwc;
+			using ::getwchar;
+ 			using ::mbrlen;
+			using ::mbrtowc;
+			using ::mbsinit;
+			using ::mbsrtowcs;
+			using ::putwc;
+			using ::putwchar;
+			using ::swprintf;
+			using ::swscanf;
+			using ::ungetwc;
+			using ::vfwprintf;
+			using ::vswprintf;
+			using ::vwprintf;
+			using ::wcrtomb;
+			using ::wcscat;
+			using ::wcschr;
+			using ::wcscmp;
+			using ::wcscoll;
+			using ::wcscpy;
+			using ::wcscspn;
+			using ::wcsftime;
+			using ::wcslen;
+			using ::wcsncat;
+			using ::wcsncmp;
+			using ::wcsncpy;
+			using ::wcspbrk;
+			using ::wcsrchr;
+			using ::wcsrtombs;
+			using ::wcsspn;
+			using ::wcsstr;
+			using ::wcstod;
+			using ::wcstok;
+			using ::wcstol;
+			using ::wcstoul;
+			using ::wcsxfrm;
+			using ::wctob;
+			using ::wmemchr;
+			using ::wmemcmp;
+			using ::wmemcpy;
+			using ::wmemmove;
+			using ::wmemset;
+			using ::wprintf;
+			using ::wscanf;
+		      }
+		     
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+else
+  enable_wchar_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    else
+      enable_wchar_t=no
+    fi
+
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  fi
+
+  if test x"$enable_wchar_t" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_WCHAR_T 1" >>confdefs.h
+
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for enabled wchar_t specializations" >&5
+$as_echo_n "checking for enabled wchar_t specializations... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_wchar_t" >&5
+$as_echo "$enable_wchar_t" >&6; }
+
+
+
+   @%:@ Check whether --enable-c99 was given.
+if test "${enable_c99+set}" = set; then :
+  enableval=$enable_c99; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable c99 must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_c99=yes
+fi
+
+
+
+  if test x"$enable_c99" = x"yes"; then
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+    # Use -std=c++98 (instead of -std=gnu++98) because leaving __STRICT_ANSI__
+    # undefined may cause fake C99 facilities, like pre-standard snprintf,
+    # to be spuriously enabled.
+    ac_save_CXXFLAGS="$CXXFLAGS"
+    CXXFLAGS="$CXXFLAGS -std=c++98"
+    ac_save_LIBS="$LIBS"
+    ac_save_gcc_no_link="$gcc_no_link"
+
+    if test x$gcc_no_link != xyes; then
+      # Use -fno-exceptions to that the C driver can link these tests without
+      # hitting undefined references to personality routines.
+      CXXFLAGS="$CXXFLAGS -fno-exceptions"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  LIBS="$LIBS -lm"
+else
+  
+        # Use the default compile-only tests in GCC_TRY_COMPILE_OR_LINK
+        gcc_no_link=yes
+      
+fi
+
+    fi
+
+    # Check for the existence of <math.h> functions used if C99 is enabled.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <math.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <math.h> for C++98... " >&6; }
+if ${glibcxx_cv_c99_math_cxx98+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+         volatile double d1, d2;
+         volatile int i;
+int
+main ()
+{
+i = fpclassify(d1);
+         i = isfinite(d1);
+         i = isinf(d1);
+         i = isnan(d1);
+         i = isnormal(d1);
+         i = signbit(d1);
+         i = isgreater(d1, d2);
+         i = isgreaterequal(d1, d2);
+         i = isless(d1, d2);
+         i = islessequal(d1, d2);
+         i = islessgreater(d1, d2);
+         i = islessgreater(d1, d2);
+         i = isunordered(d1, d2);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_math_cxx98=yes
+else
+  glibcxx_cv_c99_math_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+         volatile double d1, d2;
+         volatile int i;
+int
+main ()
+{
+i = fpclassify(d1);
+         i = isfinite(d1);
+         i = isinf(d1);
+         i = isnan(d1);
+         i = isnormal(d1);
+         i = signbit(d1);
+         i = isgreater(d1, d2);
+         i = isgreaterequal(d1, d2);
+         i = isless(d1, d2);
+         i = islessequal(d1, d2);
+         i = islessgreater(d1, d2);
+         i = islessgreater(d1, d2);
+         i = isunordered(d1, d2);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_math_cxx98=yes
+else
+  glibcxx_cv_c99_math_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_math_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_math_cxx98" >&6; }
+    if test x"$glibcxx_cv_c99_math_cxx98" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX98_USE_C99_MATH 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence of <complex.h> complex math functions.
+    # This is necessary even though libstdc++ uses the builtin versions
+    # of these functions, because if the builtin cannot be used, a reference
+    # to the library function is emitted.
+    for ac_header in tgmath.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "tgmath.h" "ac_cv_header_tgmath_h" "$ac_includes_default"
+if test "x$ac_cv_header_tgmath_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TGMATH_H 1
+_ACEOF
+ ac_has_tgmath_h=yes
+else
+  ac_has_tgmath_h=no
+fi
+
+done
+
+    for ac_header in complex.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "complex.h" "ac_cv_header_complex_h" "$ac_includes_default"
+if test "x$ac_cv_header_complex_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_COMPLEX_H 1
+_ACEOF
+ ac_has_complex_h=yes
+else
+  ac_has_complex_h=no
+fi
+
+done
+
+    if test x"$ac_has_complex_h" = x"yes"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <complex.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <complex.h> for C++98... " >&6; }
+if ${glibcxx_cv_c99_complex_cxx98+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+        if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <complex.h>
+           typedef __complex__ float float_type;
+           typedef __complex__ double double_type;
+           typedef __complex__ long double ld_type;
+           volatile float_type tmpf;
+           volatile double_type tmpd;
+           volatile ld_type tmpld;
+           volatile float f;
+           volatile double d;
+           volatile long double ld;
+int
+main ()
+{
+f = cabsf(tmpf);
+           f = cargf(tmpf);
+           tmpf = ccosf(tmpf);
+           tmpf = ccoshf(tmpf);
+           tmpf = cexpf(tmpf);
+           tmpf = clogf(tmpf);
+           tmpf = csinf(tmpf);
+           tmpf = csinhf(tmpf);
+           tmpf = csqrtf(tmpf);
+           tmpf = ctanf(tmpf);
+           tmpf = ctanhf(tmpf);
+           tmpf = cpowf(tmpf, tmpf);
+           tmpf = cprojf(tmpf);
+           d = cabs(tmpd);
+           d = carg(tmpd);
+           tmpd = ccos(tmpd);
+           tmpd = ccosh(tmpd);
+           tmpd = cexp(tmpd);
+           tmpd = clog(tmpd);
+           tmpd = csin(tmpd);
+           tmpd = csinh(tmpd);
+           tmpd = csqrt(tmpd);
+           tmpd = ctan(tmpd);
+           tmpd = ctanh(tmpd);
+           tmpd = cpow(tmpd, tmpd);
+           tmpd = cproj(tmpd);
+           ld = cabsl(tmpld);
+           ld = cargl(tmpld);
+           tmpld = ccosl(tmpld);
+           tmpld = ccoshl(tmpld);
+           tmpld = cexpl(tmpld);
+           tmpld = clogl(tmpld);
+           tmpld = csinl(tmpld);
+           tmpld = csinhl(tmpld);
+           tmpld = csqrtl(tmpld);
+           tmpld = ctanl(tmpld);
+           tmpld = ctanhl(tmpld);
+           tmpld = cpowl(tmpld, tmpld);
+           tmpld = cprojl(tmpld);
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_complex_cxx98=yes
+else
+  glibcxx_cv_c99_complex_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <complex.h>
+           typedef __complex__ float float_type;
+           typedef __complex__ double double_type;
+           typedef __complex__ long double ld_type;
+           volatile float_type tmpf;
+           volatile double_type tmpd;
+           volatile ld_type tmpld;
+           volatile float f;
+           volatile double d;
+           volatile long double ld;
+int
+main ()
+{
+f = cabsf(tmpf);
+           f = cargf(tmpf);
+           tmpf = ccosf(tmpf);
+           tmpf = ccoshf(tmpf);
+           tmpf = cexpf(tmpf);
+           tmpf = clogf(tmpf);
+           tmpf = csinf(tmpf);
+           tmpf = csinhf(tmpf);
+           tmpf = csqrtf(tmpf);
+           tmpf = ctanf(tmpf);
+           tmpf = ctanhf(tmpf);
+           tmpf = cpowf(tmpf, tmpf);
+           tmpf = cprojf(tmpf);
+           d = cabs(tmpd);
+           d = carg(tmpd);
+           tmpd = ccos(tmpd);
+           tmpd = ccosh(tmpd);
+           tmpd = cexp(tmpd);
+           tmpd = clog(tmpd);
+           tmpd = csin(tmpd);
+           tmpd = csinh(tmpd);
+           tmpd = csqrt(tmpd);
+           tmpd = ctan(tmpd);
+           tmpd = ctanh(tmpd);
+           tmpd = cpow(tmpd, tmpd);
+           tmpd = cproj(tmpd);
+           ld = cabsl(tmpld);
+           ld = cargl(tmpld);
+           tmpld = ccosl(tmpld);
+           tmpld = ccoshl(tmpld);
+           tmpld = cexpl(tmpld);
+           tmpld = clogl(tmpld);
+           tmpld = csinl(tmpld);
+           tmpld = csinhl(tmpld);
+           tmpld = csqrtl(tmpld);
+           tmpld = ctanl(tmpld);
+           tmpld = ctanhl(tmpld);
+           tmpld = cpowl(tmpld, tmpld);
+           tmpld = cprojl(tmpld);
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_complex_cxx98=yes
+else
+  glibcxx_cv_c99_complex_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_complex_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_complex_cxx98" >&6; }
+    fi
+    if test x"$glibcxx_cv_c99_complex_cxx98" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX98_USE_C99_COMPLEX 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <stdio.h> of vscanf, et. al.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <stdio.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <stdio.h> for C++98... " >&6; }
+if ${glibcxx_cv_c99_stdio_cxx98+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+         #include <stdarg.h>
+         void foo(char* fmt, ...)
+         {
+           va_list args; va_start(args, fmt);
+           vfscanf(stderr, "%i", args);
+           vscanf("%i", args);
+           vsnprintf(fmt, 0, "%i", args);
+           vsscanf(fmt, "%i", args);
+           snprintf(fmt, 0, "%i");
+         }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_stdio_cxx98=yes
+else
+  glibcxx_cv_c99_stdio_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+         #include <stdarg.h>
+         void foo(char* fmt, ...)
+         {
+           va_list args; va_start(args, fmt);
+           vfscanf(stderr, "%i", args);
+           vscanf("%i", args);
+           vsnprintf(fmt, 0, "%i", args);
+           vsscanf(fmt, "%i", args);
+           snprintf(fmt, 0, "%i");
+         }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_stdio_cxx98=yes
+else
+  glibcxx_cv_c99_stdio_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdio_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_stdio_cxx98" >&6; }
+    if test x"$glibcxx_cv_c99_stdio_cxx98" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX98_USE_C99_STDIO 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <stdlib.h> of lldiv_t, et. al.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <stdlib.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <stdlib.h> for C++98... " >&6; }
+if ${glibcxx_cv_c99_stdlib_cxx98+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+         volatile float f;
+         volatile long double ld;
+         volatile unsigned long long ll;
+         lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+         f = strtof("gnu", &tmp);
+         ld = strtold("gnu", &tmp);
+         ll = strtoll("gnu", &tmp, 10);
+         ll = strtoull("gnu", &tmp, 10);
+         ll = llabs(10);
+         mydivt = lldiv(10,1);
+         ll = mydivt.quot;
+         ll = mydivt.rem;
+         ll = atoll("10");
+         _Exit(0);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_stdlib_cxx98=yes
+else
+  glibcxx_cv_c99_stdlib_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+         volatile float f;
+         volatile long double ld;
+         volatile unsigned long long ll;
+         lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+         f = strtof("gnu", &tmp);
+         ld = strtold("gnu", &tmp);
+         ll = strtoll("gnu", &tmp, 10);
+         ll = strtoull("gnu", &tmp, 10);
+         ll = llabs(10);
+         mydivt = lldiv(10,1);
+         ll = mydivt.quot;
+         ll = mydivt.rem;
+         ll = atoll("10");
+         _Exit(0);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_stdlib_cxx98=yes
+else
+  glibcxx_cv_c99_stdlib_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdlib_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_stdlib_cxx98" >&6; }
+    if test x"$glibcxx_cv_c99_stdlib_cxx98" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX98_USE_C99_STDLIB 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <wchar.h> of wcstold, etc.
+    if test x"$ac_has_wchar_h" = xyes &&
+       test x"$ac_has_wctype_h" = xyes; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <wchar.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <wchar.h> for C++98... " >&6; }
+if ${glibcxx_cv_c99_wchar_cxx98+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+          namespace test
+          {
+            using ::wcstold;
+            using ::wcstoll;
+            using ::wcstoull;
+          }
+        
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_wchar_cxx98=yes
+else
+  glibcxx_cv_c99_wchar_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_wchar_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_wchar_cxx98" >&6; }
+
+      # Checks for wide character functions that may not be present.
+      # Injection of these is wrapped with guard macros.
+      # NB: only put functions here, instead of immediately above, if
+      # absolutely necessary.
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vfwscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VFWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vswscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VSWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vwscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::wcstof; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_WCSTOF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wctype.h>
+int
+main ()
+{
+wint_t t; int i = iswblank(t);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_ISWBLANK 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      if test x"$glibcxx_cv_c99_wchar_cxx98" = x"yes"; then
+        
+$as_echo "@%:@define _GLIBCXX98_USE_C99_WCHAR 1" >>confdefs.h
+
+      fi
+    fi
+
+    # Option parsed, now set things appropriately.
+    if test x"$glibcxx_cv_c99_math_cxx98" = x"no" ||
+       test x"$glibcxx_cv_c99_complex_cxx98" = x"no" ||
+       test x"$glibcxx_cv_c99_stdio_cxx98" = x"no" ||
+       test x"$glibcxx_cv_c99_stdlib_cxx98" = x"no" ||
+       test x"$glibcxx_cv_c99_wchar_cxx98" = x"no"; then
+      enable_c99=no;
+    else
+      
+$as_echo "@%:@define _GLIBCXX_USE_C99 1" >>confdefs.h
+
+    fi
+
+    gcc_no_link="$ac_save_gcc_no_link"
+    LIBS="$ac_save_LIBS"
+    CXXFLAGS="$ac_save_CXXFLAGS"
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+    # Use -std=c++11 and test again for C99 library feature in C++11 mode.
+    # For the reasons given above we use -std=c++11 not -std=gnu++11.
+    ac_save_CXXFLAGS="$CXXFLAGS"
+    CXXFLAGS="$CXXFLAGS -std=c++11"
+    ac_save_LIBS="$LIBS"
+    ac_save_gcc_no_link="$gcc_no_link"
+
+    if test x$gcc_no_link != xyes; then
+      # Use -fno-exceptions to that the C driver can link these tests without
+      # hitting undefined references to personality routines.
+      CXXFLAGS="$CXXFLAGS -fno-exceptions"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  LIBS="$LIBS -lm"
+else
+  
+        # Use the default compile-only tests in GCC_TRY_COMPILE_OR_LINK
+        gcc_no_link=yes
+      
+fi
+
+    fi
+
+    # Check for the existence of <math.h> functions used if C99 is enabled.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <math.h> for C++11" >&5
+$as_echo_n "checking for ISO C99 support in <math.h> for C++11... " >&6; }
+if ${glibcxx_cv_c99_math_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+         volatile double d1, d2;
+         volatile int i;
+int
+main ()
+{
+i = fpclassify(d1);
+         i = isfinite(d1);
+         i = isinf(d1);
+         i = isnan(d1);
+         i = isnormal(d1);
+         i = signbit(d1);
+         i = isgreater(d1, d2);
+         i = isgreaterequal(d1, d2);
+         i = isless(d1, d2);
+         i = islessequal(d1, d2);
+         i = islessgreater(d1, d2);
+         i = islessgreater(d1, d2);
+         i = isunordered(d1, d2);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_math_cxx11=yes
+else
+  glibcxx_cv_c99_math_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+         volatile double d1, d2;
+         volatile int i;
+int
+main ()
+{
+i = fpclassify(d1);
+         i = isfinite(d1);
+         i = isinf(d1);
+         i = isnan(d1);
+         i = isnormal(d1);
+         i = signbit(d1);
+         i = isgreater(d1, d2);
+         i = isgreaterequal(d1, d2);
+         i = isless(d1, d2);
+         i = islessequal(d1, d2);
+         i = islessgreater(d1, d2);
+         i = islessgreater(d1, d2);
+         i = isunordered(d1, d2);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_math_cxx11=yes
+else
+  glibcxx_cv_c99_math_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_math_cxx11" >&5
+$as_echo "$glibcxx_cv_c99_math_cxx11" >&6; }
+    if test x"$glibcxx_cv_c99_math_cxx11" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX11_USE_C99_MATH 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence of <complex.h> complex math functions.
+    # This is necessary even though libstdc++ uses the builtin versions
+    # of these functions, because if the builtin cannot be used, a reference
+    # to the library function is emitted.
+    for ac_header in tgmath.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "tgmath.h" "ac_cv_header_tgmath_h" "$ac_includes_default"
+if test "x$ac_cv_header_tgmath_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TGMATH_H 1
+_ACEOF
+ ac_has_tgmath_h=yes
+else
+  ac_has_tgmath_h=no
+fi
+
+done
+
+    for ac_header in complex.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "complex.h" "ac_cv_header_complex_h" "$ac_includes_default"
+if test "x$ac_cv_header_complex_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_COMPLEX_H 1
+_ACEOF
+ ac_has_complex_h=yes
+else
+  ac_has_complex_h=no
+fi
+
+done
+
+    if test x"$ac_has_complex_h" = x"yes"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <complex.h> for C++11" >&5
+$as_echo_n "checking for ISO C99 support in <complex.h> for C++11... " >&6; }
+if ${glibcxx_cv_c99_complex_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+        if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <complex.h>
+           typedef __complex__ float float_type;
+           typedef __complex__ double double_type;
+           typedef __complex__ long double ld_type;
+           volatile float_type tmpf;
+           volatile double_type tmpd;
+           volatile ld_type tmpld;
+           volatile float f;
+           volatile double d;
+           volatile long double ld;
+int
+main ()
+{
+f = cabsf(tmpf);
+           f = cargf(tmpf);
+           tmpf = ccosf(tmpf);
+           tmpf = ccoshf(tmpf);
+           tmpf = cexpf(tmpf);
+           tmpf = clogf(tmpf);
+           tmpf = csinf(tmpf);
+           tmpf = csinhf(tmpf);
+           tmpf = csqrtf(tmpf);
+           tmpf = ctanf(tmpf);
+           tmpf = ctanhf(tmpf);
+           tmpf = cpowf(tmpf, tmpf);
+           tmpf = cprojf(tmpf);
+           d = cabs(tmpd);
+           d = carg(tmpd);
+           tmpd = ccos(tmpd);
+           tmpd = ccosh(tmpd);
+           tmpd = cexp(tmpd);
+           tmpd = clog(tmpd);
+           tmpd = csin(tmpd);
+           tmpd = csinh(tmpd);
+           tmpd = csqrt(tmpd);
+           tmpd = ctan(tmpd);
+           tmpd = ctanh(tmpd);
+           tmpd = cpow(tmpd, tmpd);
+           tmpd = cproj(tmpd);
+           ld = cabsl(tmpld);
+           ld = cargl(tmpld);
+           tmpld = ccosl(tmpld);
+           tmpld = ccoshl(tmpld);
+           tmpld = cexpl(tmpld);
+           tmpld = clogl(tmpld);
+           tmpld = csinl(tmpld);
+           tmpld = csinhl(tmpld);
+           tmpld = csqrtl(tmpld);
+           tmpld = ctanl(tmpld);
+           tmpld = ctanhl(tmpld);
+           tmpld = cpowl(tmpld, tmpld);
+           tmpld = cprojl(tmpld);
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_complex_cxx11=yes
+else
+  glibcxx_cv_c99_complex_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <complex.h>
+           typedef __complex__ float float_type;
+           typedef __complex__ double double_type;
+           typedef __complex__ long double ld_type;
+           volatile float_type tmpf;
+           volatile double_type tmpd;
+           volatile ld_type tmpld;
+           volatile float f;
+           volatile double d;
+           volatile long double ld;
+int
+main ()
+{
+f = cabsf(tmpf);
+           f = cargf(tmpf);
+           tmpf = ccosf(tmpf);
+           tmpf = ccoshf(tmpf);
+           tmpf = cexpf(tmpf);
+           tmpf = clogf(tmpf);
+           tmpf = csinf(tmpf);
+           tmpf = csinhf(tmpf);
+           tmpf = csqrtf(tmpf);
+           tmpf = ctanf(tmpf);
+           tmpf = ctanhf(tmpf);
+           tmpf = cpowf(tmpf, tmpf);
+           tmpf = cprojf(tmpf);
+           d = cabs(tmpd);
+           d = carg(tmpd);
+           tmpd = ccos(tmpd);
+           tmpd = ccosh(tmpd);
+           tmpd = cexp(tmpd);
+           tmpd = clog(tmpd);
+           tmpd = csin(tmpd);
+           tmpd = csinh(tmpd);
+           tmpd = csqrt(tmpd);
+           tmpd = ctan(tmpd);
+           tmpd = ctanh(tmpd);
+           tmpd = cpow(tmpd, tmpd);
+           tmpd = cproj(tmpd);
+           ld = cabsl(tmpld);
+           ld = cargl(tmpld);
+           tmpld = ccosl(tmpld);
+           tmpld = ccoshl(tmpld);
+           tmpld = cexpl(tmpld);
+           tmpld = clogl(tmpld);
+           tmpld = csinl(tmpld);
+           tmpld = csinhl(tmpld);
+           tmpld = csqrtl(tmpld);
+           tmpld = ctanl(tmpld);
+           tmpld = ctanhl(tmpld);
+           tmpld = cpowl(tmpld, tmpld);
+           tmpld = cprojl(tmpld);
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_complex_cxx11=yes
+else
+  glibcxx_cv_c99_complex_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_complex_cxx11" >&5
+$as_echo "$glibcxx_cv_c99_complex_cxx11" >&6; }
+    fi
+    if test x"$glibcxx_cv_c99_complex_cxx11" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX11_USE_C99_COMPLEX 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <stdio.h> of vscanf, et. al.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <stdio.h> for C++11" >&5
+$as_echo_n "checking for ISO C99 support in <stdio.h> for C++11... " >&6; }
+if ${glibcxx_cv_c99_stdio_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+         #include <stdarg.h>
+         void foo(char* fmt, ...)
+         {
+           va_list args; va_start(args, fmt);
+           vfscanf(stderr, "%i", args);
+           vscanf("%i", args);
+           vsnprintf(fmt, 0, "%i", args);
+           vsscanf(fmt, "%i", args);
+           snprintf(fmt, 0, "%i");
+         }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_stdio_cxx11=yes
+else
+  glibcxx_cv_c99_stdio_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+         #include <stdarg.h>
+         void foo(char* fmt, ...)
+         {
+           va_list args; va_start(args, fmt);
+           vfscanf(stderr, "%i", args);
+           vscanf("%i", args);
+           vsnprintf(fmt, 0, "%i", args);
+           vsscanf(fmt, "%i", args);
+           snprintf(fmt, 0, "%i");
+         }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_stdio_cxx11=yes
+else
+  glibcxx_cv_c99_stdio_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdio_cxx11" >&5
+$as_echo "$glibcxx_cv_c99_stdio_cxx11" >&6; }
+    if test x"$glibcxx_cv_c99_stdio_cxx11" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX11_USE_C99_STDIO 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <stdlib.h> of lldiv_t, et. al.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <stdlib.h> for C++11" >&5
+$as_echo_n "checking for ISO C99 support in <stdlib.h> for C++11... " >&6; }
+if ${glibcxx_cv_c99_stdlib_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+         volatile float f;
+         volatile long double ld;
+         volatile unsigned long long ll;
+         lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+         f = strtof("gnu", &tmp);
+         ld = strtold("gnu", &tmp);
+         ll = strtoll("gnu", &tmp, 10);
+         ll = strtoull("gnu", &tmp, 10);
+         ll = llabs(10);
+         mydivt = lldiv(10,1);
+         ll = mydivt.quot;
+         ll = mydivt.rem;
+         ll = atoll("10");
+         _Exit(0);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_stdlib_cxx11=yes
+else
+  glibcxx_cv_c99_stdlib_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+         volatile float f;
+         volatile long double ld;
+         volatile unsigned long long ll;
+         lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+         f = strtof("gnu", &tmp);
+         ld = strtold("gnu", &tmp);
+         ll = strtoll("gnu", &tmp, 10);
+         ll = strtoull("gnu", &tmp, 10);
+         ll = llabs(10);
+         mydivt = lldiv(10,1);
+         ll = mydivt.quot;
+         ll = mydivt.rem;
+         ll = atoll("10");
+         _Exit(0);
+        
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_c99_stdlib_cxx11=yes
+else
+  glibcxx_cv_c99_stdlib_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdlib_cxx11" >&5
+$as_echo "$glibcxx_cv_c99_stdlib_cxx11" >&6; }
+    if test x"$glibcxx_cv_c99_stdlib_cxx11" = x"yes"; then
+      
+$as_echo "@%:@define _GLIBCXX11_USE_C99_STDLIB 1" >>confdefs.h
+
+    fi
+
+    # Check for the existence in <wchar.h> of wcstold, etc.
+    if test x"$ac_has_wchar_h" = xyes &&
+       test x"$ac_has_wctype_h" = xyes; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <wchar.h> for C++11" >&5
+$as_echo_n "checking for ISO C99 support in <wchar.h> for C++11... " >&6; }
+if ${glibcxx_cv_c99_wchar_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+          namespace test
+          {
+            using ::wcstold;
+            using ::wcstoll;
+            using ::wcstoull;
+          }
+        
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_wchar_cxx11=yes
+else
+  glibcxx_cv_c99_wchar_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_wchar_cxx11" >&5
+$as_echo "$glibcxx_cv_c99_wchar_cxx11" >&6; }
+
+      # Checks for wide character functions that may not be present.
+      # Injection of these is wrapped with guard macros.
+      # NB: only put functions here, instead of immediately above, if
+      # absolutely necessary.
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vfwscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VFWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vswscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VSWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::vwscanf; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_VWSCANF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+        namespace test { using ::wcstof; }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_WCSTOF 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wctype.h>
+int
+main ()
+{
+wint_t t; int i = iswblank(t);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  
+$as_echo "@%:@define HAVE_ISWBLANK 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+      if test x"$glibcxx_cv_c99_wchar_cxx11" = x"yes"; then
+        
+$as_echo "@%:@define _GLIBCXX11_USE_C99_WCHAR 1" >>confdefs.h
+
+      fi
+    fi
+
+    gcc_no_link="$ac_save_gcc_no_link"
+    LIBS="$ac_save_LIBS"
+    CXXFLAGS="$ac_save_CXXFLAGS"
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fully enabled ISO C99 support" >&5
+$as_echo_n "checking for fully enabled ISO C99 support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_c99" >&5
+$as_echo "$enable_c99" >&6; }
+
+
+   @%:@ Check whether --enable-concept-checks was given.
+if test "${enable_concept_checks+set}" = set; then :
+  enableval=$enable_concept_checks; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable concept-checks must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_concept_checks=no
+fi
+
+
+  if test $enable_concept_checks = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_CONCEPT_CHECKS 1" >>confdefs.h
+
+  fi
+
+
+   @%:@ Check whether --enable-libstdcxx-debug-flags was given.
+if test "${enable_libstdcxx_debug_flags+set}" = set; then :
+  enableval=$enable_libstdcxx_debug_flags; case "x$enable_libstdcxx_debug_flags" in
+      xno | x)    enable_libstdcxx_debug_flags= ;;
+      x-*)        ;;
+      *)          as_fn_error $? "--enable-libstdcxx-debug-flags needs compiler flags as arguments" "$LINENO" 5 ;;
+     esac
+else
+  enable_libstdcxx_debug_flags="-g3 -O0 -D_GLIBCXX_ASSERTIONS"
+fi
+
+
+
+  # Option parsed, now set things appropriately
+  DEBUG_FLAGS="$enable_libstdcxx_debug_flags"
+  
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Debug build flags set to $DEBUG_FLAGS" >&5
+$as_echo "$as_me: Debug build flags set to $DEBUG_FLAGS" >&6;}
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for additional debug build" >&5
+$as_echo_n "checking for additional debug build... " >&6; }
+  skip_debug_build=
+   @%:@ Check whether --enable-libstdcxx-debug was given.
+if test "${enable_libstdcxx_debug+set}" = set; then :
+  enableval=$enable_libstdcxx_debug; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-debug must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_libstdcxx_debug=no
+fi
+
+
+  if test x$enable_libstdcxx_debug = xyes; then
+    if test -f $toplevel_builddir/../stage_final \
+      && test -f $toplevel_builddir/../stage_current; then
+      stage_final=`cat $toplevel_builddir/../stage_final`
+      stage_current=`cat $toplevel_builddir/../stage_current`
+      if test x$stage_current != x$stage_final ; then
+	skip_debug_build=" (skipped for bootstrap stage $stage_current)"
+	enable_libstdcxx_debug=no
+      fi
+    fi
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_debug$skip_debug_build" >&5
+$as_echo "$enable_libstdcxx_debug$skip_debug_build" >&6; }
+    
+
+
+
+  enable_parallel=no;
+
+  # See if configured libgomp/omp.h exists. (libgomp may be in
+  # noconfigdirs but not explicitly disabled.)
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libgomp " > /dev/null 2>&1 ; then
+    enable_parallel=yes;
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: target-libgomp not built" >&5
+$as_echo "$as_me: target-libgomp not built" >&6;}
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for parallel mode support" >&5
+$as_echo_n "checking for parallel mode support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_parallel" >&5
+$as_echo "$enable_parallel" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for extra compiler flags for building" >&5
+$as_echo_n "checking for extra compiler flags for building... " >&6; }
+   @%:@ Check whether --enable-cxx-flags was given.
+if test "${enable_cxx_flags+set}" = set; then :
+  enableval=$enable_cxx_flags; case "x$enable_cxx_flags" in
+      xno | x)   enable_cxx_flags= ;;
+      x-*)       ;;
+      *)         as_fn_error $? "--enable-cxx-flags needs compiler flags as arguments" "$LINENO" 5 ;;
+     esac
+else
+  enable_cxx_flags=
+fi
+
+
+
+  # Run through flags (either default or command-line) and set anything
+  # extra (e.g., #defines) that must accompany particular g++ options.
+  if test -n "$enable_cxx_flags"; then
+    for f in $enable_cxx_flags; do
+      case "$f" in
+	-fhonor-std)  ;;
+	-*)  ;;
+	*)   # and we're trying to pass /what/ exactly?
+	     as_fn_error $? "compiler flags start with a -" "$LINENO" 5 ;;
+      esac
+    done
+  fi
+
+  EXTRA_CXX_FLAGS="$enable_cxx_flags"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $EXTRA_CXX_FLAGS" >&5
+$as_echo "$EXTRA_CXX_FLAGS" >&6; }
+  
+
+
+   @%:@ Check whether --enable-fully-dynamic-string was given.
+if test "${enable_fully_dynamic_string+set}" = set; then :
+  enableval=$enable_fully_dynamic_string; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable fully-dynamic-string" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_fully_dynamic_string=no
+fi
+
+
+  if test $enable_fully_dynamic_string = yes; then
+    enable_fully_dynamic_string_def=1
+  else
+    enable_fully_dynamic_string_def=0
+  fi
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_FULLY_DYNAMIC_STRING ${enable_fully_dynamic_string_def}
+_ACEOF
+
+
+
+
+   @%:@ Check whether --enable-extern-template was given.
+if test "${enable_extern_template+set}" = set; then :
+  enableval=$enable_extern_template; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable extern-template must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_extern_template=yes
+fi
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for extern template support" >&5
+$as_echo_n "checking for extern template support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_extern_template" >&5
+$as_echo "$enable_extern_template" >&6; }
+
+    
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for custom python install directory" >&5
+$as_echo_n "checking for custom python install directory... " >&6; }
+
+@%:@ Check whether --with-python-dir was given.
+if test "${with_python_dir+set}" = set; then :
+  withval=$with_python_dir; with_python_dir=$withval
+else
+  with_python_dir="no"
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_python_dir}" >&5
+$as_echo "${with_python_dir}" >&6; }
+
+# Needed for installing Python modules during make install.
+python_mod_dir="${with_python_dir}"
+
+  
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Werror" >&5
+$as_echo_n "checking for -Werror... " >&6; }
+   @%:@ Check whether --enable-werror was given.
+if test "${enable_werror+set}" = set; then :
+  enableval=$enable_werror; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable werror must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_werror=no
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_werror" >&5
+$as_echo "$enable_werror" >&6; }
+    
+
+
+
+   @%:@ Check whether --enable-vtable-verify was given.
+if test "${enable_vtable_verify+set}" = set; then :
+  enableval=$enable_vtable_verify; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable vtable-verify must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_vtable_verify=no
+fi
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for vtable verify support" >&5
+$as_echo_n "checking for vtable verify support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_vtable_verify" >&5
+$as_echo "$enable_vtable_verify" >&6; }
+
+  vtv_cygmin=no
+  if test $enable_vtable_verify = yes; then
+    case ${target_os} in
+      cygwin*|mingw32*)
+        VTV_CXXFLAGS="-fvtable-verify=std -Wl,-lvtv,-u_vtable_map_vars_start,-u_vtable_map_vars_end"
+        VTV_CXXLINKFLAGS="-L${toplevel_builddir}/libvtv/.libs -Wl,--rpath -Wl,${toplevel_builddir}/libvtv/.libs"
+        vtv_cygmin=yes
+        ;;
+      darwin*)
+        VTV_CXXFLAGS="-fvtable-verify=std -Wl,-u,_vtable_map_vars_start -Wl,-u,_vtable_map_vars_end"
+        VTV_CXXLINKFLAGS="-L${toplevel_builddir}/libvtv/.libs -Wl,-rpath,${toplevel_builddir}/libvtv/.libs"
+        ;;
+      solaris2*)
+        VTV_CXXFLAGS="-fvtable-verify=std -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end"
+        VTV_CXXLINKFLAGS="-L${toplevel_builddir}/libvtv/.libs -Wl,-R -Wl,${toplevel_builddir}/libvtv/.libs"
+        ;;
+      *)
+        VTV_CXXFLAGS="-fvtable-verify=std -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end"
+        VTV_CXXLINKFLAGS="-L${toplevel_builddir}/libvtv/.libs -Wl,--rpath -Wl,${toplevel_builddir}/libvtv/.libs"
+        ;;
+    esac
+    VTV_PCH_CXXFLAGS="-fvtable-verify=std"
+  else
+    VTV_CXXFLAGS=
+    VTV_PCH_CXXFLAGS=
+    VTV_CXXLINKFLAGS=
+  fi
+
+  
+  
+  
+   if test x$vtv_cygmin = xyes; then
+  VTV_CYGMIN_TRUE=
+  VTV_CYGMIN_FALSE='#'
+else
+  VTV_CYGMIN_TRUE='#'
+  VTV_CYGMIN_FALSE=
+fi
+
+    
+
+
+# Checks for operating systems support that doesn't require linking.
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  # Use C++11 because a conforming <stdio.h> won't define gets for C++14,
+  # and we don't need a declaration for C++14 anyway.
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=gnu++11"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gets declaration" >&5
+$as_echo_n "checking for gets declaration... " >&6; }
+if ${glibcxx_cv_gets+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+	   namespace test
+	   {
+              using ::gets;
+	   }
+	
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_gets=yes
+else
+  glibcxx_cv_gets=no
+      
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_gets" >&5
+$as_echo "$glibcxx_cv_gets" >&6; }
+
+  if test $glibcxx_cv_gets = yes; then
+    
+$as_echo "@%:@define HAVE_GETS 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=c++11"
+
+  case "$host" in
+    *-*-solaris2.*)
+      # Solaris 12 Build 86, Solaris 11.3 SRU 3.6, and Solaris 10 Patch
+      # 11996[67]-02 introduced the C++11 <math.h> floating point overloads.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C++11 <math.h> floating point overloads" >&5
+$as_echo_n "checking for C++11 <math.h> floating point overloads... " >&6; }
+if ${glibcxx_cv_math11_fp_overload+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+	   #undef isfinite
+	   namespace std {
+	     inline bool isfinite(float __x)
+	     { return __builtin_isfinite(__x); }
+	   }
+	
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_math11_fp_overload=no
+else
+  glibcxx_cv_math11_fp_overload=yes
+      
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_math11_fp_overload" >&5
+$as_echo "$glibcxx_cv_math11_fp_overload" >&6; }
+
+      # autoheader cannot handle indented templates.
+      
+
+      if test $glibcxx_cv_math11_fp_overload = yes; then
+        $as_echo "@%:@define __CORRECT_ISO_CPP11_MATH_H_PROTO_FP 1" >>confdefs.h
+
+      fi
+
+      # Solaris 12 Build 90, Solaris 11.3 SRU 5.6, and Solaris 10 Patch
+      # 11996[67]-02 introduced the C++11 <math.h> integral type overloads.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C++11 <math.h> integral type overloads" >&5
+$as_echo_n "checking for C++11 <math.h> integral type overloads... " >&6; }
+if ${glibcxx_cv_math11_int_overload+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+	   namespace std {
+	     template<typename _Tp>
+	       struct __is_integer;
+	     template<>
+	       struct __is_integer<int>
+	       {
+	         enum { __value = 1 };
+	       };
+	   }
+	   namespace __gnu_cxx {
+	     template<bool, typename>
+	       struct __enable_if;
+	     template<typename _Tp>
+	       struct __enable_if<true, _Tp>
+	       { typedef _Tp __type; };
+	   }
+	   namespace std {
+	     template<typename _Tp>
+	       constexpr typename __gnu_cxx::__enable_if
+	       		 <__is_integer<_Tp>::__value, double>::__type
+	       log2(_Tp __x)
+	       { return __builtin_log2(__x); }
+	   }
+	   int
+	   main (void)
+	   {
+	     int i = 1000;
+	     return std::log2(i);
+	   }
+	
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_math11_int_overload=no
+else
+  glibcxx_cv_math11_int_overload=yes
+      
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_math11_int_overload" >&5
+$as_echo "$glibcxx_cv_math11_int_overload" >&6; }
+
+      # autoheader cannot handle indented templates.
+      
+
+      if test $glibcxx_cv_math11_int_overload = yes; then
+        $as_echo "@%:@define __CORRECT_ISO_CPP11_MATH_H_PROTO_INT 1" >>confdefs.h
+
+      fi
+      ;;
+    *)
+      # If <math.h> defines the obsolete isinf(double) and isnan(double)
+      # functions (instead of or as well as the C99 generic macros) then we
+      # can't define std::isinf(double) and std::isnan(double) in <cmath>
+      # and must use the ones from <math.h> instead.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for obsolete isinf function in <math.h>" >&5
+$as_echo_n "checking for obsolete isinf function in <math.h>... " >&6; }
+if ${glibcxx_cv_obsolete_isinf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+             #include <math.h>
+             #undef isinf
+             namespace std {
+               using ::isinf;
+               bool isinf(float);
+               bool isinf(long double);
+             }
+             using std::isinf;
+             bool b = isinf(0.0);
+          
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_obsolete_isinf=yes
+else
+  glibcxx_cv_obsolete_isinf=no
+        
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_obsolete_isinf" >&5
+$as_echo "$glibcxx_cv_obsolete_isinf" >&6; }
+      if test $glibcxx_cv_obsolete_isinf = yes; then
+        
+$as_echo "@%:@define HAVE_OBSOLETE_ISINF 1" >>confdefs.h
+
+      fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for obsolete isnan function in <math.h>" >&5
+$as_echo_n "checking for obsolete isnan function in <math.h>... " >&6; }
+if ${glibcxx_cv_obsolete_isnan+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+             #include <math.h>
+             #undef isnan
+             namespace std {
+               using ::isnan;
+               bool isnan(float);
+               bool isnan(long double);
+             }
+             using std::isnan;
+             bool b = isnan(0.0);
+          
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_obsolete_isnan=yes
+else
+  glibcxx_cv_obsolete_isnan=no
+        
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_obsolete_isnan" >&5
+$as_echo "$glibcxx_cv_obsolete_isnan" >&6; }
+      if test $glibcxx_cv_obsolete_isnan = yes; then
+        
+$as_echo "@%:@define HAVE_OBSOLETE_ISNAN 1" >>confdefs.h
+
+      fi
+      ;;
+  esac
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  # Test uchar.h.
+  for ac_header in uchar.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "uchar.h" "ac_cv_header_uchar_h" "$ac_includes_default"
+if test "x$ac_cv_header_uchar_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_UCHAR_H 1
+_ACEOF
+ ac_has_uchar_h=yes
+else
+  ac_has_uchar_h=no
+fi
+
+done
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=c++11"
+
+  if test x"$ac_has_uchar_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C11 support for <uchar.h>" >&5
+$as_echo_n "checking for ISO C11 support for <uchar.h>... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <uchar.h>
+		    #ifdef __STDC_UTF_16__
+		    long i = __STDC_UTF_16__;
+		    #endif
+		    #ifdef __STDC_UTF_32__
+		    long j = __STDC_UTF_32__;
+		    #endif
+		    namespace test
+		    {
+		      using ::c16rtomb;
+		      using ::c32rtomb;
+		      using ::mbrtoc16;
+		      using ::mbrtoc32;
+		    }
+		   
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_c11_uchar_cxx11=yes
+else
+  ac_c11_uchar_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_c11_uchar_cxx11" >&5
+$as_echo "$ac_c11_uchar_cxx11" >&6; }
+  else
+    ac_c11_uchar_cxx11=no
+  fi
+  if test x"$ac_c11_uchar_cxx11" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C11_UCHAR_CXX11 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$CXXFLAGS -fchar8_t"
+  if test x"$ac_has_uchar_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c8rtomb and mbrtoc8 in <uchar.h> with -fchar8_t" >&5
+$as_echo_n "checking for c8rtomb and mbrtoc8 in <uchar.h> with -fchar8_t... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <uchar.h>
+		    namespace test
+		    {
+		      using ::c8rtomb;
+		      using ::mbrtoc8;
+		    }
+		   
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_uchar_c8rtomb_mbrtoc8_fchar8_t=yes
+else
+  ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  else
+    ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&5
+$as_echo "$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&6; }
+  if test x"$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$CXXFLAGS -std=c++20"
+  if test x"$ac_has_uchar_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c8rtomb and mbrtoc8 in <uchar.h> with -std=c++20" >&5
+$as_echo_n "checking for c8rtomb and mbrtoc8 in <uchar.h> with -std=c++20... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <uchar.h>
+		    namespace test
+		    {
+		      using ::c8rtomb;
+		      using ::mbrtoc8;
+		    }
+		   
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_uchar_c8rtomb_mbrtoc8_cxx20=yes
+else
+  ac_uchar_c8rtomb_mbrtoc8_cxx20=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  else
+    ac_uchar_c8rtomb_mbrtoc8_cxx20=no
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_cxx20" >&5
+$as_echo "$ac_uchar_c8rtomb_mbrtoc8_cxx20" >&6; }
+  if test x"$ac_uchar_c8rtomb_mbrtoc8_cxx20" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For LFS support.
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LFS support" >&5
+$as_echo_n "checking for LFS support... " >&6; }
+if ${glibcxx_cv_LFS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+       #include <stdio.h>
+       #include <sys/stat.h>
+      
+int
+main ()
+{
+FILE* fp;
+       fopen64("t", "w");
+       fseeko64(fp, 0, SEEK_CUR);
+       ftello64(fp);
+       lseek64(1, 0, SEEK_CUR);
+       struct stat64 buf;
+       fstat64(1, &buf);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_LFS=yes
+else
+  glibcxx_cv_LFS=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+       #include <stdio.h>
+       #include <sys/stat.h>
+      
+int
+main ()
+{
+FILE* fp;
+       fopen64("t", "w");
+       fseeko64(fp, 0, SEEK_CUR);
+       ftello64(fp);
+       lseek64(1, 0, SEEK_CUR);
+       struct stat64 buf;
+       fstat64(1, &buf);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_LFS=yes
+else
+  glibcxx_cv_LFS=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_LFS" >&5
+$as_echo "$glibcxx_cv_LFS" >&6; }
+  if test $glibcxx_cv_LFS = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_LFS 1" >>confdefs.h
+
+  fi
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For showmanyc_helper().
+for ac_header in sys/ioctl.h sys/filio.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for poll" >&5
+$as_echo_n "checking for poll... " >&6; }
+if ${glibcxx_cv_POLL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <poll.h>
+int
+main ()
+{
+struct pollfd pfd[1];
+       pfd[0].events = POLLIN;
+       poll(pfd, 1, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_POLL=yes
+else
+  glibcxx_cv_POLL=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <poll.h>
+int
+main ()
+{
+struct pollfd pfd[1];
+       pfd[0].events = POLLIN;
+       poll(pfd, 1, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_POLL=yes
+else
+  glibcxx_cv_POLL=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_POLL" >&5
+$as_echo "$glibcxx_cv_POLL" >&6; }
+  if test $glibcxx_cv_POLL = yes; then
+    
+$as_echo "@%:@define HAVE_POLL 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S_ISREG or S_IFREG" >&5
+$as_echo_n "checking for S_ISREG or S_IFREG... " >&6; }
+  if ${glibcxx_cv_S_ISREG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+struct stat buffer;
+       fstat(0, &buffer);
+       S_ISREG(buffer.st_mode);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_S_ISREG=yes
+else
+  glibcxx_cv_S_ISREG=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+struct stat buffer;
+       fstat(0, &buffer);
+       S_ISREG(buffer.st_mode);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_S_ISREG=yes
+else
+  glibcxx_cv_S_ISREG=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+
+  if ${glibcxx_cv_S_IFREG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+struct stat buffer;
+       fstat(0, &buffer);
+       S_IFREG & buffer.st_mode;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_S_IFREG=yes
+else
+  glibcxx_cv_S_IFREG=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+struct stat buffer;
+       fstat(0, &buffer);
+       S_IFREG & buffer.st_mode;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_S_IFREG=yes
+else
+  glibcxx_cv_S_IFREG=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+
+  res=no
+  if test $glibcxx_cv_S_ISREG = yes; then
+    
+$as_echo "@%:@define HAVE_S_ISREG 1" >>confdefs.h
+
+    res=S_ISREG
+  elif test $glibcxx_cv_S_IFREG = yes; then
+    
+$as_echo "@%:@define HAVE_S_IFREG 1" >>confdefs.h
+
+    res=S_IFREG
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For xsputn_2().
+for ac_header in sys/uio.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/uio.h" "ac_cv_header_sys_uio_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_uio_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SYS_UIO_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for writev" >&5
+$as_echo_n "checking for writev... " >&6; }
+if ${glibcxx_cv_WRITEV+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/uio.h>
+int
+main ()
+{
+struct iovec iov[2];
+       writev(0, iov, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_WRITEV=yes
+else
+  glibcxx_cv_WRITEV=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/uio.h>
+int
+main ()
+{
+struct iovec iov[2];
+       writev(0, iov, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_WRITEV=yes
+else
+  glibcxx_cv_WRITEV=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_WRITEV" >&5
+$as_echo "$glibcxx_cv_WRITEV" >&6; }
+  if test $glibcxx_cv_WRITEV = yes; then
+    
+$as_echo "@%:@define HAVE_WRITEV 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
+# so that the check is done with the C compiler (not C++).
+# Checking with C++ can break a canadian cross build if either
+# file does not exist in C but does in C++.
+for ac_header in fenv.h complex.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+
+# For C99 support to TR1.
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+  # Use -std=c++98 because the default (-std=gnu++98) leaves __STRICT_ANSI__
+  # undefined and fake C99 facilities may be spuriously enabled.
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -std=c++98"
+
+  # Check for the existence of <complex.h> complex math functions used
+  # by tr1/complex.
+  for ac_header in complex.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "complex.h" "ac_cv_header_complex_h" "$ac_includes_default"
+if test "x$ac_cv_header_complex_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_COMPLEX_H 1
+_ACEOF
+ ac_has_complex_h=yes
+else
+  ac_has_complex_h=no
+fi
+
+done
+
+  ac_c99_complex_tr1=no;
+  if test x"$ac_has_complex_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <complex.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <complex.h>... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <complex.h>
+int
+main ()
+{
+typedef __complex__ float float_type; float_type tmpf;
+		    cacosf(tmpf);
+		    casinf(tmpf);
+		    catanf(tmpf);
+		    cacoshf(tmpf);
+		    casinhf(tmpf);
+		    catanhf(tmpf);
+		    typedef __complex__ double double_type; double_type tmpd;
+		    cacos(tmpd);
+		    casin(tmpd);
+		    catan(tmpd);
+		    cacosh(tmpd);
+		    casinh(tmpd);
+		    catanh(tmpd);
+		    typedef __complex__ long double ld_type; ld_type tmpld;
+		    cacosl(tmpld);
+		    casinl(tmpld);
+		    catanl(tmpld);
+		    cacoshl(tmpld);
+		    casinhl(tmpld);
+		    catanhl(tmpld);
+		   
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_c99_complex_tr1=yes
+else
+  ac_c99_complex_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_c99_complex_tr1" >&5
+$as_echo "$ac_c99_complex_tr1" >&6; }
+  if test x"$ac_c99_complex_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_COMPLEX_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of <ctype.h> functions.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <ctype.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <ctype.h>... " >&6; }
+if ${glibcxx_cv_c99_ctype_tr1+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+int
+main ()
+{
+int ch;
+		  int ret;
+		  ret = isblank(ch);
+		 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_ctype_tr1=yes
+else
+  glibcxx_cv_c99_ctype_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_ctype_tr1" >&5
+$as_echo "$glibcxx_cv_c99_ctype_tr1" >&6; }
+  if test x"$glibcxx_cv_c99_ctype_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_CTYPE_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of <fenv.h> functions.
+  for ac_header in fenv.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "fenv.h" "ac_cv_header_fenv_h" "$ac_includes_default"
+if test "x$ac_cv_header_fenv_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FENV_H 1
+_ACEOF
+ ac_has_fenv_h=yes
+else
+  ac_has_fenv_h=no
+fi
+
+done
+
+  ac_c99_fenv_tr1=no;
+  if test x"$ac_has_fenv_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <fenv.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <fenv.h>... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <fenv.h>
+int
+main ()
+{
+int except, mode;
+		    fexcept_t* pflag;
+		    fenv_t* penv;
+		    int ret;
+		    ret = feclearexcept(except);
+		    ret = fegetexceptflag(pflag, except);
+		    ret = feraiseexcept(except);
+		    ret = fesetexceptflag(pflag, except);
+		    ret = fetestexcept(except);
+		    ret = fegetround();
+		    ret = fesetround(mode);
+		    ret = fegetenv(penv);
+		    ret = feholdexcept(penv);
+		    ret = fesetenv(penv);
+		    ret = feupdateenv(penv);
+		   
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_c99_fenv_tr1=yes
+else
+  ac_c99_fenv_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_c99_fenv_tr1" >&5
+$as_echo "$ac_c99_fenv_tr1" >&6; }
+  fi
+  if test x"$ac_c99_fenv_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_FENV_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of <stdint.h> types.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <stdint.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <stdint.h>... " >&6; }
+if ${glibcxx_cv_c99_stdint_tr1+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define __STDC_LIMIT_MACROS
+		  #define __STDC_CONSTANT_MACROS
+		  #include <stdint.h>
+int
+main ()
+{
+typedef int8_t          my_int8_t;
+		  my_int8_t               i8 = INT8_MIN;
+		  i8 = INT8_MAX;
+		  typedef int16_t         my_int16_t;
+		  my_int16_t              i16 = INT16_MIN;
+		  i16 = INT16_MAX;
+		  typedef int32_t         my_int32_t;
+		  my_int32_t              i32 = INT32_MIN;
+		  i32 = INT32_MAX;
+		  typedef int64_t         my_int64_t;
+		  my_int64_t              i64 = INT64_MIN;
+		  i64 = INT64_MAX;
+		  typedef int_fast8_t     my_int_fast8_t;
+		  my_int_fast8_t          if8 = INT_FAST8_MIN;
+		  if8 = INT_FAST8_MAX;
+		  typedef int_fast16_t    my_int_fast16_t;
+		  my_int_fast16_t         if16 = INT_FAST16_MIN;
+		  if16 = INT_FAST16_MAX;
+		  typedef int_fast32_t    my_int_fast32_t;
+		  my_int_fast32_t         if32 = INT_FAST32_MIN;
+		  if32 = INT_FAST32_MAX;
+		  typedef int_fast64_t    my_int_fast64_t;
+		  my_int_fast64_t         if64 = INT_FAST64_MIN;
+		  if64 = INT_FAST64_MAX;
+		  typedef int_least8_t    my_int_least8_t;
+		  my_int_least8_t         il8 = INT_LEAST8_MIN;
+		  il8 = INT_LEAST8_MAX;
+		  typedef int_least16_t   my_int_least16_t;
+		  my_int_least16_t        il16 = INT_LEAST16_MIN;
+		  il16 = INT_LEAST16_MAX;
+		  typedef int_least32_t   my_int_least32_t;
+		  my_int_least32_t        il32 = INT_LEAST32_MIN;
+		  il32 = INT_LEAST32_MAX;
+		  typedef int_least64_t   my_int_least64_t;
+		  my_int_least64_t        il64 = INT_LEAST64_MIN;
+		  il64 = INT_LEAST64_MAX;
+		  typedef intmax_t        my_intmax_t;
+		  my_intmax_t             im = INTMAX_MAX;
+		  im = INTMAX_MIN;
+		  typedef intptr_t        my_intptr_t;
+		  my_intptr_t             ip = INTPTR_MAX;
+		  ip = INTPTR_MIN;
+		  typedef uint8_t         my_uint8_t;
+		  my_uint8_t              ui8 = UINT8_MAX;
+		  ui8 = UINT8_MAX;
+		  typedef uint16_t        my_uint16_t;
+		  my_uint16_t             ui16 = UINT16_MAX;
+		  ui16 = UINT16_MAX;
+		  typedef uint32_t        my_uint32_t;
+		  my_uint32_t             ui32 = UINT32_MAX;
+		  ui32 = UINT32_MAX;
+		  typedef uint64_t        my_uint64_t;
+		  my_uint64_t             ui64 = UINT64_MAX;
+		  ui64 = UINT64_MAX;
+		  typedef uint_fast8_t    my_uint_fast8_t;
+		  my_uint_fast8_t         uif8 = UINT_FAST8_MAX;
+		  uif8 = UINT_FAST8_MAX;
+		  typedef uint_fast16_t   my_uint_fast16_t;
+		  my_uint_fast16_t        uif16 = UINT_FAST16_MAX;
+		  uif16 = UINT_FAST16_MAX;
+		  typedef uint_fast32_t   my_uint_fast32_t;
+		  my_uint_fast32_t        uif32 = UINT_FAST32_MAX;
+		  uif32 = UINT_FAST32_MAX;
+		  typedef uint_fast64_t   my_uint_fast64_t;
+		  my_uint_fast64_t        uif64 = UINT_FAST64_MAX;
+		  uif64 = UINT_FAST64_MAX;
+		  typedef uint_least8_t   my_uint_least8_t;
+		  my_uint_least8_t        uil8 = UINT_LEAST8_MAX;
+		  uil8 = UINT_LEAST8_MAX;
+		  typedef uint_least16_t  my_uint_least16_t;
+		  my_uint_least16_t       uil16 = UINT_LEAST16_MAX;
+		  uil16 = UINT_LEAST16_MAX;
+		  typedef uint_least32_t  my_uint_least32_t;
+		  my_uint_least32_t       uil32 = UINT_LEAST32_MAX;
+		  uil32 = UINT_LEAST32_MAX;
+		  typedef uint_least64_t  my_uint_least64_t;
+		  my_uint_least64_t       uil64 = UINT_LEAST64_MAX;
+		  uil64 = UINT_LEAST64_MAX;
+		  typedef uintmax_t       my_uintmax_t;
+		  my_uintmax_t            uim = UINTMAX_MAX;
+		  uim = UINTMAX_MAX;
+		  typedef uintptr_t       my_uintptr_t;
+		  my_uintptr_t            uip = UINTPTR_MAX;
+		  uip = UINTPTR_MAX;
+		 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_stdint_tr1=yes
+else
+  glibcxx_cv_c99_stdint_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdint_tr1" >&5
+$as_echo "$glibcxx_cv_c99_stdint_tr1" >&6; }
+  if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_STDINT_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of <math.h> functions.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <math.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <math.h>... " >&6; }
+if ${glibcxx_cv_c99_math_tr1+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+typedef double_t  my_double_t;
+		  typedef float_t   my_float_t;
+		  acosh(0.0);
+		  acoshf(0.0f);
+		  acoshl(0.0l);
+		  asinh(0.0);
+		  asinhf(0.0f);
+		  asinhl(0.0l);
+		  atanh(0.0);
+		  atanhf(0.0f);
+		  atanhl(0.0l);
+		  cbrt(0.0);
+		  cbrtf(0.0f);
+		  cbrtl(0.0l);
+		  copysign(0.0, 0.0);
+		  copysignf(0.0f, 0.0f);
+		  copysignl(0.0l, 0.0l);
+		  erf(0.0);
+		  erff(0.0f);
+		  erfl(0.0l);
+		  erfc(0.0);
+		  erfcf(0.0f);
+		  erfcl(0.0l);
+		  exp2(0.0);
+		  exp2f(0.0f);
+		  exp2l(0.0l);
+		  expm1(0.0);
+		  expm1f(0.0f);
+		  expm1l(0.0l);
+		  fdim(0.0, 0.0);
+		  fdimf(0.0f, 0.0f);
+		  fdiml(0.0l, 0.0l);
+		  fma(0.0, 0.0, 0.0);
+		  fmaf(0.0f, 0.0f, 0.0f);
+		  fmal(0.0l, 0.0l, 0.0l);
+		  fmax(0.0, 0.0);
+		  fmaxf(0.0f, 0.0f);
+		  fmaxl(0.0l, 0.0l);
+		  fmin(0.0, 0.0);
+		  fminf(0.0f, 0.0f);
+		  fminl(0.0l, 0.0l);
+		  hypot(0.0, 0.0);
+		  hypotf(0.0f, 0.0f);
+		  hypotl(0.0l, 0.0l);
+		  ilogb(0.0);
+		  ilogbf(0.0f);
+		  ilogbl(0.0l);
+		  lgamma(0.0);
+		  lgammaf(0.0f);
+		  lgammal(0.0l);
+		  #ifndef __APPLE__ /* see below */
+		  llrint(0.0);
+		  llrintf(0.0f);
+		  llrintl(0.0l);
+		  llround(0.0);
+		  llroundf(0.0f);
+		  llroundl(0.0l);
+		  #endif
+		  log1p(0.0);
+		  log1pf(0.0f);
+		  log1pl(0.0l);
+		  log2(0.0);
+		  log2f(0.0f);
+		  log2l(0.0l);
+		  logb(0.0);
+		  logbf(0.0f);
+		  logbl(0.0l);
+		  lrint(0.0);
+		  lrintf(0.0f);
+		  lrintl(0.0l);
+		  lround(0.0);
+		  lroundf(0.0f);
+		  lroundl(0.0l);
+		  nan(0);
+		  nanf(0);
+		  nanl(0);
+		  nearbyint(0.0);
+		  nearbyintf(0.0f);
+		  nearbyintl(0.0l);
+		  nextafter(0.0, 0.0);
+		  nextafterf(0.0f, 0.0f);
+		  nextafterl(0.0l, 0.0l);
+		  nexttoward(0.0, 0.0);
+		  nexttowardf(0.0f, 0.0f);
+		  nexttowardl(0.0l, 0.0l);
+		  remainder(0.0, 0.0);
+		  remainderf(0.0f, 0.0f);
+		  remainderl(0.0l, 0.0l);
+		  remquo(0.0, 0.0, 0);
+		  remquof(0.0f, 0.0f, 0);
+		  remquol(0.0l, 0.0l, 0);
+		  rint(0.0);
+		  rintf(0.0f);
+		  rintl(0.0l);
+		  round(0.0);
+		  roundf(0.0f);
+		  roundl(0.0l);
+		  scalbln(0.0, 0l);
+		  scalblnf(0.0f, 0l);
+		  scalblnl(0.0l, 0l);
+		  scalbn(0.0, 0);
+		  scalbnf(0.0f, 0);
+		  scalbnl(0.0l, 0);
+		  tgamma(0.0);
+		  tgammaf(0.0f);
+		  tgammal(0.0l);
+		  trunc(0.0);
+		  truncf(0.0f);
+		  truncl(0.0l);
+		 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_math_tr1=yes
+else
+  glibcxx_cv_c99_math_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_math_tr1" >&5
+$as_echo "$glibcxx_cv_c99_math_tr1" >&6; }
+  if test x"$glibcxx_cv_c99_math_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_MATH_TR1 1" >>confdefs.h
+
+
+    case "${target_os}" in
+      darwin*)
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 rounding functions in <math.h>" >&5
+$as_echo_n "checking for ISO C99 rounding functions in <math.h>... " >&6; }
+if ${glibcxx_cv_c99_math_llround+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+llrint(0.0);
+		  llrintf(0.0f);
+		  llrintl(0.0l);
+		  llround(0.0);
+		  llroundf(0.0f);
+		  llroundl(0.0l);
+		 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_c99_math_llround=yes
+else
+  glibcxx_cv_c99_math_llround=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+          
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_math_llround" >&5
+$as_echo "$glibcxx_cv_c99_math_llround" >&6; }
+        ;;
+    esac
+    if test x"$glibcxx_cv_c99_math_llround" = x"no"; then
+      
+$as_echo "@%:@define _GLIBCXX_NO_C99_ROUNDING_FUNCS 1" >>confdefs.h
+
+    fi
+  fi
+
+  # Check for the existence of <inttypes.h> functions (NB: doesn't make
+  # sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1).
+  ac_c99_inttypes_tr1=no;
+  if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support to TR1 in <inttypes.h>" >&5
+$as_echo_n "checking for ISO C99 support to TR1 in <inttypes.h>... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <inttypes.h>
+int
+main ()
+{
+intmax_t i, numer, denom, base;
+		    const char* s;
+		    char** endptr;
+		    intmax_t ret = imaxabs(i);
+		    imaxdiv_t dret = imaxdiv(numer, denom);
+		    ret = strtoimax(s, endptr, base);
+		    uintmax_t uret = strtoumax(s, endptr, base);
+		   
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_c99_inttypes_tr1=yes
+else
+  ac_c99_inttypes_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_c99_inttypes_tr1" >&5
+$as_echo "$ac_c99_inttypes_tr1" >&6; }
+  fi
+  if test x"$ac_c99_inttypes_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_INTTYPES_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of wchar_t <inttypes.h> functions (NB: doesn't
+  # make sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1).
+  ac_c99_inttypes_wchar_t_tr1=no;
+  if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for wchar_t ISO C99 support to TR1 in <inttypes.h>" >&5
+$as_echo_n "checking for wchar_t ISO C99 support to TR1 in <inttypes.h>... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <inttypes.h>
+int
+main ()
+{
+intmax_t base;
+		    const wchar_t* s;
+		    wchar_t** endptr;
+		    intmax_t ret = wcstoimax(s, endptr, base);
+		    uintmax_t uret = wcstoumax(s, endptr, base);
+		   
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_c99_inttypes_wchar_t_tr1=yes
+else
+  ac_c99_inttypes_wchar_t_tr1=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_c99_inttypes_wchar_t_tr1" >&5
+$as_echo "$ac_c99_inttypes_wchar_t_tr1" >&6; }
+  fi
+  if test x"$ac_c99_inttypes_wchar_t_tr1" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1 1" >>confdefs.h
+
+  fi
+
+  # Check for the existence of the <stdbool.h> header.
+  for ac_header in stdbool.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "stdbool.h" "ac_cv_header_stdbool_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdbool_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STDBOOL_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+  # Check for the existence of the <stdalign.h> header.
+  for ac_header in stdalign.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "stdalign.h" "ac_cv_header_stdalign_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdalign_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STDALIGN_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For the EOF, SEEK_CUR, and SEEK_END integer constants.
+
+
+if test "$is_hosted" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the value of EOF" >&5
+$as_echo_n "checking for the value of EOF... " >&6; }
+if ${glibcxx_cv_stdio_eof+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  if ac_fn_c_compute_int "$LINENO" "EOF" "glibcxx_cv_stdio_eof"        "#include <stdio.h>"; then :
+  
+else
+  as_fn_error $? "computing EOF failed" "$LINENO" 5
+fi
+
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_stdio_eof" >&5
+$as_echo "$glibcxx_cv_stdio_eof" >&6; }
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_STDIO_EOF $glibcxx_cv_stdio_eof
+_ACEOF
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the value of SEEK_CUR" >&5
+$as_echo_n "checking for the value of SEEK_CUR... " >&6; }
+if ${glibcxx_cv_stdio_seek_cur+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  if ac_fn_c_compute_int "$LINENO" "SEEK_CUR" "glibcxx_cv_stdio_seek_cur"        "#include <stdio.h>"; then :
+  
+else
+  as_fn_error $? "computing SEEK_CUR failed" "$LINENO" 5
+fi
+
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_stdio_seek_cur" >&5
+$as_echo "$glibcxx_cv_stdio_seek_cur" >&6; }
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_STDIO_SEEK_CUR $glibcxx_cv_stdio_seek_cur
+_ACEOF
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the value of SEEK_END" >&5
+$as_echo_n "checking for the value of SEEK_END... " >&6; }
+if ${glibcxx_cv_stdio_seek_end+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  if ac_fn_c_compute_int "$LINENO" "SEEK_END" "glibcxx_cv_stdio_seek_end"        "#include <stdio.h>"; then :
+  
+else
+  as_fn_error $? "computing SEEK_END failed" "$LINENO" 5
+fi
+
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_stdio_seek_end" >&5
+$as_echo "$glibcxx_cv_stdio_seek_end" >&6; }
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_STDIO_SEEK_END $glibcxx_cv_stdio_seek_end
+_ACEOF
+
+fi
+
+
+# For gettimeofday support.
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gettimeofday" >&5
+$as_echo_n "checking for gettimeofday... " >&6; }
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  ac_has_gettimeofday=no;
+  for ac_header in sys/time.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_time_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SYS_TIME_H 1
+_ACEOF
+ ac_has_sys_time_h=yes
+else
+  ac_has_sys_time_h=no
+fi
+
+done
+
+  if test x"$ac_has_sys_time_h" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gettimeofday" >&5
+$as_echo_n "checking for gettimeofday... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/time.h>
+int
+main ()
+{
+timeval tv; gettimeofday(&tv, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_gettimeofday=yes
+else
+  ac_has_gettimeofday=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/time.h>
+int
+main ()
+{
+timeval tv; gettimeofday(&tv, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_has_gettimeofday=yes
+else
+  ac_has_gettimeofday=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_gettimeofday" >&5
+$as_echo "$ac_has_gettimeofday" >&6; }
+  fi
+
+  if test x"$ac_has_gettimeofday" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_GETTIMEOFDAY 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For clock_gettime, nanosleep and sched_yield support.
+
+
+   @%:@ Check whether --enable-libstdcxx-time was given.
+if test "${enable_libstdcxx_time+set}" = set; then :
+  enableval=$enable_libstdcxx_time; 
+      case "$enableval" in
+       yes|no|rt) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable libstdcxx-time" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_libstdcxx_time=auto
+fi
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  ac_save_LIBS="$LIBS"
+
+  ac_has_clock_monotonic=no
+  ac_has_clock_realtime=no
+  ac_has_nanosleep=no
+  ac_has_sched_yield=no
+
+  if test x"$enable_libstdcxx_time" = x"auto"; then
+
+    case "${target_os}" in
+      cygwin*)
+        ac_has_nanosleep=yes
+        ;;
+      darwin*)
+        ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
+        ;;
+      # VxWorks has nanosleep as soon as the kernel is configured with
+      # INCLUDE_POSIX_TIMERS, which is normally/most-often the case.
+      vxworks*)
+        ac_has_nanosleep=yes
+        ;;
+      gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+        # Don't use link test for freestanding library, in case gcc_no_link=yes
+        if test x"$is_hosted" = xyes; then
+          # Versions of glibc before 2.17 needed -lrt for clock_gettime.
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+$as_echo_n "checking for library containing clock_gettime... " >&6; }
+if ${ac_cv_search_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime ();
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_search_clock_gettime=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_clock_gettime+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_clock_gettime+:} false; then :
+  
+else
+  ac_cv_search_clock_gettime=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+$as_echo "$ac_cv_search_clock_gettime" >&6; }
+ac_res=$ac_cv_search_clock_gettime
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  
+fi
+
+          if test x"$ac_cv_search_clock_gettime" = x"none required"; then
+            ac_has_clock_monotonic=yes
+            ac_has_clock_realtime=yes
+          fi
+        fi
+        ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
+        ;;
+      freebsd*|netbsd*|dragonfly*|rtems*)
+        ac_has_clock_monotonic=yes
+        ac_has_clock_realtime=yes
+        ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
+        ;;
+      openbsd*)
+        ac_has_clock_monotonic=yes
+        ac_has_clock_realtime=yes
+        ac_has_nanosleep=yes
+        ;;
+      solaris*)
+        ac_has_clock_monotonic=yes
+        ac_has_clock_realtime=yes
+        ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
+        ;;
+      uclinux*)
+        ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
+    esac
+
+  elif test x"$enable_libstdcxx_time" != x"no"; then
+
+    if test x"$enable_libstdcxx_time" = x"rt"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+$as_echo_n "checking for library containing clock_gettime... " >&6; }
+if ${ac_cv_search_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime ();
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_search_clock_gettime=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_clock_gettime+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_clock_gettime+:} false; then :
+  
+else
+  ac_cv_search_clock_gettime=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+$as_echo "$ac_cv_search_clock_gettime" >&6; }
+ac_res=$ac_cv_search_clock_gettime
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  
+fi
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing nanosleep" >&5
+$as_echo_n "checking for library containing nanosleep... " >&6; }
+if ${ac_cv_search_nanosleep+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char nanosleep ();
+int
+main ()
+{
+return nanosleep ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_search_nanosleep=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_nanosleep+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_nanosleep+:} false; then :
+  
+else
+  ac_cv_search_nanosleep=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_nanosleep" >&5
+$as_echo "$ac_cv_search_nanosleep" >&6; }
+ac_res=$ac_cv_search_nanosleep
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  
+fi
+
+    else
+      ac_fn_cxx_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
+if test "x$ac_cv_func_clock_gettime" = xyes; then :
+  
+fi
+
+      ac_fn_cxx_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
+if test "x$ac_cv_func_nanosleep" = xyes; then :
+  
+fi
+
+    fi
+
+    case "$ac_cv_search_clock_gettime" in
+      -l*) GLIBCXX_LIBS=$ac_cv_search_clock_gettime
+      ;;
+    esac
+    case "$ac_cv_search_nanosleep" in
+      -l*) GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_nanosleep"
+      ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sched_yield" >&5
+$as_echo_n "checking for library containing sched_yield... " >&6; }
+if ${ac_cv_search_sched_yield+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sched_yield ();
+int
+main ()
+{
+return sched_yield ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_search_sched_yield=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_sched_yield+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_sched_yield+:} false; then :
+  
+else
+  ac_cv_search_sched_yield=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sched_yield" >&5
+$as_echo "$ac_cv_search_sched_yield" >&6; }
+ac_res=$ac_cv_search_sched_yield
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  
+fi
+
+
+    case "$ac_cv_search_sched_yield" in
+      -lrt*)
+      if test x"$enable_libstdcxx_time" = x"rt"; then
+	GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
+        ac_has_sched_yield=yes
+      fi
+      ;;
+      *)
+      ac_has_sched_yield=yes
+      ;;
+    esac
+
+    for ac_header in unistd.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$ac_includes_default"
+if test "x$ac_cv_header_unistd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_UNISTD_H 1
+_ACEOF
+ ac_has_unistd_h=yes
+else
+  ac_has_unistd_h=no
+fi
+
+done
+
+
+    if test x"$ac_has_unistd_h" = x"yes"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for monotonic clock" >&5
+$as_echo_n "checking for monotonic clock... " >&6; }
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+	 #include <time.h>
+	
+int
+main ()
+{
+#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
+	  timespec tp;
+	 #endif
+	  clock_gettime(CLOCK_MONOTONIC, &tp);
+	
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_has_clock_monotonic=yes
+else
+  ac_has_clock_monotonic=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_clock_monotonic" >&5
+$as_echo "$ac_has_clock_monotonic" >&6; }
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for realtime clock" >&5
+$as_echo_n "checking for realtime clock... " >&6; }
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+	 #include <time.h>
+	
+int
+main ()
+{
+#if _POSIX_TIMERS > 0
+	  timespec tp;
+	 #endif
+	  clock_gettime(CLOCK_REALTIME, &tp);
+	
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_has_clock_realtime=yes
+else
+  ac_has_clock_realtime=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_clock_realtime" >&5
+$as_echo "$ac_has_clock_realtime" >&6; }
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nanosleep" >&5
+$as_echo_n "checking for nanosleep... " >&6; }
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+	 #include <time.h>
+	
+int
+main ()
+{
+#if _POSIX_TIMERS > 0
+	  timespec tp;
+	 #endif
+	  nanosleep(&tp, 0);
+	
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_has_nanosleep=yes
+else
+  ac_has_nanosleep=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_nanosleep" >&5
+$as_echo "$ac_has_nanosleep" >&6; }
+    fi
+  fi
+
+  if test x"$ac_has_clock_monotonic" != x"yes"; then
+    case ${target_os} in
+      linux* | uclinux*)
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime syscall" >&5
+$as_echo_n "checking for clock_gettime syscall... " >&6; }
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+	   #include <time.h>
+	   #include <sys/syscall.h>
+	  
+int
+main ()
+{
+#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
+	    timespec tp;
+	   #endif
+	   syscall(SYS_clock_gettime, CLOCK_MONOTONIC, &tp);
+	   syscall(SYS_clock_gettime, CLOCK_REALTIME, &tp);
+	  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_clock_gettime_syscall=yes
+else
+  ac_has_clock_gettime_syscall=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_clock_gettime_syscall" >&5
+$as_echo "$ac_has_clock_gettime_syscall" >&6; }
+	if test x"$ac_has_clock_gettime_syscall" = x"yes"; then
+	  
+$as_echo "@%:@define _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL 1" >>confdefs.h
+
+	  ac_has_clock_monotonic=yes
+	  ac_has_clock_realtime=yes
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec that matches syscall" >&5
+$as_echo_n "checking for struct timespec that matches syscall... " >&6; }
+	  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <time.h>
+	     #include <sys/syscall.h>
+	    
+int
+main ()
+{
+#ifdef SYS_clock_gettime64
+	     #if SYS_clock_gettime64 != SYS_clock_gettime
+	     // We need to use SYS_clock_gettime and libc appears to
+	     // also know about the SYS_clock_gettime64 syscall.
+	     // Check that userspace doesn't use time64 version of timespec.
+	     static_assert(sizeof(timespec::tv_sec) == sizeof(long),
+	       "struct timespec must be compatible with SYS_clock_gettime");
+	     #endif
+	     #endif
+	    
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_timespec_matches_syscall=yes
+else
+  ac_timespec_matches_syscall=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_timespec_matches_syscall" >&5
+$as_echo "$ac_timespec_matches_syscall" >&6; }
+	  if test x"$ac_timespec_matches_syscall" = no; then
+	    as_fn_error $? "struct timespec is not compatible with SYS_clock_gettime, please report a bug to http://gcc.gnu.org/bugzilla" "$LINENO" 5
+	  fi
+	fi;;
+    esac
+  fi
+
+  if test x"$ac_has_clock_monotonic" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_CLOCK_MONOTONIC 1" >>confdefs.h
+
+  fi
+
+  if test x"$ac_has_clock_realtime" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_CLOCK_REALTIME 1" >>confdefs.h
+
+  fi
+
+  if test x"$ac_has_sched_yield" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_SCHED_YIELD 1" >>confdefs.h
+
+  fi
+
+  if test x"$ac_has_nanosleep" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_NANOSLEEP 1" >>confdefs.h
+
+  else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sleep" >&5
+$as_echo_n "checking for sleep... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+sleep(1)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_sleep=yes
+else
+  ac_has_sleep=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      if test x"$ac_has_sleep" = x"yes"; then
+        
+$as_echo "@%:@define HAVE_SLEEP 1" >>confdefs.h
+
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_sleep" >&5
+$as_echo "$ac_has_sleep" >&6; }
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for usleep" >&5
+$as_echo_n "checking for usleep... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+sleep(1);
+                      usleep(100);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_usleep=yes
+else
+  ac_has_usleep=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      if test x"$ac_has_usleep" = x"yes"; then
+        
+$as_echo "@%:@define HAVE_USLEEP 1" >>confdefs.h
+
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_usleep" >&5
+$as_echo "$ac_has_usleep" >&6; }
+  fi
+
+  if test x"$ac_has_nanosleep$ac_has_sleep" = x"nono"; then
+      ac_no_sleep=yes
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Sleep" >&5
+$as_echo_n "checking for Sleep... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <windows.h>
+int
+main ()
+{
+Sleep(1)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_win32_sleep=yes
+else
+  ac_has_win32_sleep=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      if test x"$ac_has_win32_sleep" = x"yes"; then
+        
+$as_echo "@%:@define HAVE_WIN32_SLEEP 1" >>confdefs.h
+
+	ac_no_sleep=no
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_win32_sleep" >&5
+$as_echo "$ac_has_win32_sleep" >&6; }
+  fi
+
+  if test x"$ac_no_sleep" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_NO_SLEEP 1" >>confdefs.h
+
+  fi
+
+  
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  LIBS="$ac_save_LIBS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# Check for tmpnam which is obsolescent in POSIX.1-2008
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tmpnam" >&5
+$as_echo_n "checking for tmpnam... " >&6; }
+if ${glibcxx_cv_TMPNAM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+char *tmp = tmpnam(NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_TMPNAM=yes
+else
+  glibcxx_cv_TMPNAM=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+char *tmp = tmpnam(NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_TMPNAM=yes
+else
+  glibcxx_cv_TMPNAM=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_TMPNAM" >&5
+$as_echo "$glibcxx_cv_TMPNAM" >&6; }
+  if test $glibcxx_cv_TMPNAM = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_TMPNAM 1" >>confdefs.h
+
+  fi
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For pthread_cond_clockwait
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS -lpthread"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_cond_clockwait" >&5
+$as_echo_n "checking for pthread_cond_clockwait... " >&6; }
+if ${glibcxx_cv_PTHREAD_COND_CLOCKWAIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_mutex_t mutex; pthread_cond_t cond; struct timespec ts; int n = pthread_cond_clockwait(&cond, &mutex, 0, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_PTHREAD_COND_CLOCKWAIT=yes
+else
+  glibcxx_cv_PTHREAD_COND_CLOCKWAIT=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_mutex_t mutex; pthread_cond_t cond; struct timespec ts; int n = pthread_cond_clockwait(&cond, &mutex, 0, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_PTHREAD_COND_CLOCKWAIT=yes
+else
+  glibcxx_cv_PTHREAD_COND_CLOCKWAIT=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_PTHREAD_COND_CLOCKWAIT" >&5
+$as_echo "$glibcxx_cv_PTHREAD_COND_CLOCKWAIT" >&6; }
+  if test $glibcxx_cv_PTHREAD_COND_CLOCKWAIT = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  LIBS="$ac_save_LIBS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For pthread_mutex_clocklock
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS -lpthread"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_mutex_clocklock" >&5
+$as_echo_n "checking for pthread_mutex_clocklock... " >&6; }
+if ${glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_mutex_t mutex; struct timespec ts; int n = pthread_mutex_clocklock(&mutex, CLOCK_REALTIME, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK=yes
+else
+  glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_mutex_t mutex; struct timespec ts; int n = pthread_mutex_clocklock(&mutex, CLOCK_REALTIME, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK=yes
+else
+  glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK" >&5
+$as_echo "$glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK" >&6; }
+  if test $glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  LIBS="$ac_save_LIBS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS -lpthread"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_rwlock_clockrdlock, pthread_wlock_clockwrlock" >&5
+$as_echo_n "checking for pthread_rwlock_clockrdlock, pthread_wlock_clockwrlock... " >&6; }
+if ${glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_rwlock_t rwl; struct timespec ts;
+      int n = pthread_rwlock_clockrdlock(&rwl, CLOCK_REALTIME, &ts);
+      int m = pthread_rwlock_clockwrlock(&rwl, CLOCK_REALTIME, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK=yes
+else
+  glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+pthread_rwlock_t rwl; struct timespec ts;
+      int n = pthread_rwlock_clockrdlock(&rwl, CLOCK_REALTIME, &ts);
+      int m = pthread_rwlock_clockwrlock(&rwl, CLOCK_REALTIME, &ts);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK=yes
+else
+  glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK" >&5
+$as_echo "$glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK" >&6; }
+  if test $glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  LIBS="$ac_save_LIBS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  ac_fn_c_check_header_mongrel "$LINENO" "locale.h" "ac_cv_header_locale_h" "$ac_includes_default"
+if test "x$ac_cv_header_locale_h" = xyes; then :
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LC_MESSAGES" >&5
+$as_echo_n "checking for LC_MESSAGES... " >&6; }
+if ${ac_cv_val_LC_MESSAGES+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <locale.h>
+int
+main ()
+{
+return LC_MESSAGES
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_val_LC_MESSAGES=yes
+else
+  ac_cv_val_LC_MESSAGES=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_val_LC_MESSAGES" >&5
+$as_echo "$ac_cv_val_LC_MESSAGES" >&6; }
+    if test $ac_cv_val_LC_MESSAGES = yes; then
+      
+$as_echo "@%:@define HAVE_LC_MESSAGES 1" >>confdefs.h
+
+    fi
+  
+fi
+
+
+
+
+# For hardware_concurrency
+for ac_header in sys/sysinfo.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/sysinfo.h" "ac_cv_header_sys_sysinfo_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_sysinfo_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SYS_SYSINFO_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for get_nprocs" >&5
+$as_echo_n "checking for get_nprocs... " >&6; }
+if ${glibcxx_cv_GET_NPROCS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/sysinfo.h>
+int
+main ()
+{
+int n = get_nprocs();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_GET_NPROCS=yes
+else
+  glibcxx_cv_GET_NPROCS=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/sysinfo.h>
+int
+main ()
+{
+int n = get_nprocs();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_GET_NPROCS=yes
+else
+  glibcxx_cv_GET_NPROCS=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_GET_NPROCS" >&5
+$as_echo "$glibcxx_cv_GET_NPROCS" >&6; }
+  if test $glibcxx_cv_GET_NPROCS = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_GET_NPROCS 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+for ac_header in unistd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$ac_includes_default"
+if test "x$ac_cv_header_unistd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_UNISTD_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _SC_NPROCESSORS_ONLN" >&5
+$as_echo_n "checking for _SC_NPROCESSORS_ONLN... " >&6; }
+if ${glibcxx_cv_SC_NPROCESSORS_ONLN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+int n = sysconf(_SC_NPROCESSORS_ONLN);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_SC_NPROCESSORS_ONLN=yes
+else
+  glibcxx_cv_SC_NPROCESSORS_ONLN=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+int n = sysconf(_SC_NPROCESSORS_ONLN);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_SC_NPROCESSORS_ONLN=yes
+else
+  glibcxx_cv_SC_NPROCESSORS_ONLN=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_SC_NPROCESSORS_ONLN" >&5
+$as_echo "$glibcxx_cv_SC_NPROCESSORS_ONLN" >&6; }
+  if test $glibcxx_cv_SC_NPROCESSORS_ONLN = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_SC_NPROCESSORS_ONLN 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _SC_NPROC_ONLN" >&5
+$as_echo_n "checking for _SC_NPROC_ONLN... " >&6; }
+if ${glibcxx_cv_SC_NPROC_ONLN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+int n = sysconf(_SC_NPROC_ONLN);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_SC_NPROC_ONLN=yes
+else
+  glibcxx_cv_SC_NPROC_ONLN=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+int n = sysconf(_SC_NPROC_ONLN);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_SC_NPROC_ONLN=yes
+else
+  glibcxx_cv_SC_NPROC_ONLN=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_SC_NPROC_ONLN" >&5
+$as_echo "$glibcxx_cv_SC_NPROC_ONLN" >&6; }
+  if test $glibcxx_cv_SC_NPROC_ONLN = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_SC_NPROC_ONLN 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthreads_num_processors_np" >&5
+$as_echo_n "checking for pthreads_num_processors_np... " >&6; }
+if ${glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int n = pthread_num_processors_np();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=yes
+else
+  glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int n = pthread_num_processors_np();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=yes
+else
+  glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP" >&5
+$as_echo "$glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP" >&6; }
+  if test $glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hw.ncpu sysctl" >&5
+$as_echo_n "checking for hw.ncpu sysctl... " >&6; }
+if ${glibcxx_cv_SYSCTL_HW_NCPU+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+       #include <stddef.h>
+       #include <sys/sysctl.h>
+       
+int
+main ()
+{
+
+       int count;
+       size_t size = sizeof(count);
+       int mib[] = { CTL_HW, HW_NCPU };
+       sysctl(mib, 2, &count, &size, NULL, 0);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_SYSCTL_HW_NCPU=yes
+else
+  glibcxx_cv_SYSCTL_HW_NCPU=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+       #include <stddef.h>
+       #include <sys/sysctl.h>
+       
+int
+main ()
+{
+
+       int count;
+       size_t size = sizeof(count);
+       int mib[] = { CTL_HW, HW_NCPU };
+       sysctl(mib, 2, &count, &size, NULL, 0);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_SYSCTL_HW_NCPU=yes
+else
+  glibcxx_cv_SYSCTL_HW_NCPU=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_SYSCTL_HW_NCPU" >&5
+$as_echo "$glibcxx_cv_SYSCTL_HW_NCPU" >&6; }
+  if test $glibcxx_cv_SYSCTL_HW_NCPU = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_SYSCTL_HW_NCPU 1" >>confdefs.h
+
+  fi
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+  # Note that this test has to be run with the C language.
+  # Otherwise, sdt.h will try to include some headers from
+  # libstdc++ itself.
+  
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suitable sys/sdt.h" >&5
+$as_echo_n "checking for suitable sys/sdt.h... " >&6; }
+if ${glibcxx_cv_sys_sdt_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    # Because we have to run the test in C, we use grep rather
+    # than the compiler to check for the bug.  The bug is that
+    # were strings without trailing whitespace, causing g++
+    # to look for operator"".  The pattern searches for the fixed
+    # output.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #include <sys/sdt.h>
+      int f() { STAP_PROBE(hi, bob); }
+    
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP " \",\" " >/dev/null 2>&1; then :
+  glibcxx_cv_sys_sdt_h=yes
+else
+  glibcxx_cv_sys_sdt_h=no
+fi
+rm -f conftest*
+
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sys_sdt_h" >&5
+$as_echo "$glibcxx_cv_sys_sdt_h" >&6; }
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  if test $glibcxx_cv_sys_sdt_h = yes; then
+    
+$as_echo "@%:@define HAVE_SYS_SDT_H 1" >>confdefs.h
+
+  fi
+
+
+# Check for available headers.
+for ac_header in endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
+locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
+strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
+sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
+wchar.h wctype.h linux/types.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+
+for ac_header in linux/random.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "linux/random.h" "ac_cv_header_linux_random_h" "#ifdef HAVE_LINUX_TYPES_H
+# include <linux/types.h>
+#endif
+
+"
+if test "x$ac_cv_header_linux_random_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LINUX_RANDOM_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+for ac_header in xlocale.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "xlocale.h" "ac_cv_header_xlocale_h" "$ac_includes_default"
+if test "x$ac_cv_header_xlocale_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_XLOCALE_H 1
+_ACEOF
+ 
+fi
+
+done
+
+
+# Only do link tests if native. Else, hardcode.
+if $GLIBCXX_IS_NATIVE; then
+
+  # We can do more elaborate tests that assume a working linker.
+  CANADIAN=no
+
+  
+
+@%:@ Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+  
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+  
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+
+  # For /dev/random and /dev/urandom for std::random_device.
+  
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for \"/dev/random\" and \"/dev/urandom\" for std::random_device" >&5
+$as_echo_n "checking for \"/dev/random\" and \"/dev/urandom\" for std::random_device... " >&6; }
+if ${glibcxx_cv_dev_random+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test -r /dev/random && test -r /dev/urandom; then
+  ## For MSys environment the test above is detected as false-positive
+  ## on mingw-targets.  So disable it explicitly for them.
+      case ${target_os} in
+	*mingw*) glibcxx_cv_dev_random=no ;;
+	*) glibcxx_cv_dev_random=yes ;;
+      esac
+    else
+      glibcxx_cv_dev_random=no;
+    fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_dev_random" >&5
+$as_echo "$glibcxx_cv_dev_random" >&6; }
+
+  if test x"$glibcxx_cv_dev_random" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_DEV_RANDOM 1" >>confdefs.h
+
+    
+$as_echo "@%:@define _GLIBCXX_USE_RANDOM_TR1 1" >>confdefs.h
+
+  fi
+
+
+
+  # For TLS support.
+  
+  
+   @%:@ Check whether --enable-tls was given.
+if test "${enable_tls+set}" = set; then :
+  enableval=$enable_tls; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable tls must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_tls=yes
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports thread-local storage" >&5
+$as_echo_n "checking whether the target supports thread-local storage... " >&6; }
+if ${gcc_cv_have_tls+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test "$cross_compiling" = yes; then :
+                if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  chktls_save_LDFLAGS="$LDFLAGS"
+	  	  	  case $host in
+	    *-*-linux* | -*-uclinuxfdpic*)
+	      LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
+	      ;;
+	  esac
+	  chktls_save_CFLAGS="$CFLAGS"
+	  CFLAGS="-fPIC $CFLAGS"
+	  	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int f() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int f() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  CFLAGS="$chktls_save_CFLAGS"
+	  LDFLAGS="$chktls_save_LDFLAGS"
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      
+    
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+                      chktls_save_LDFLAGS="$LDFLAGS"
+      LDFLAGS="-static $LDFLAGS"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      LDFLAGS="$chktls_save_LDFLAGS"
+      if test $gcc_cv_have_tls = yes; then
+						chktls_save_CFLAGS="$CFLAGS"
+	thread_CFLAGS=failed
+	for flag in '' '-pthread' '-lpthread'; do
+	  CFLAGS="$flag $chktls_save_CFLAGS"
+	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		void *g(void *d) { return NULL; }
+int
+main ()
+{
+pthread_t t; pthread_create(&t,NULL,g,NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  thread_CFLAGS="$flag"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  if test "X$thread_CFLAGS" != Xfailed; then
+	    break
+	  fi
+	done
+	CFLAGS="$chktls_save_CFLAGS"
+	if test "X$thread_CFLAGS" != Xfailed; then
+	  CFLAGS="$thread_CFLAGS $chktls_save_CFLAGS"
+ 	  	  	  	  	  	  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		__thread int a;
+		static int *volatile a_in_other_thread;
+		static void *
+		thread_func (void *arg)
+		{
+		  a_in_other_thread = &a;
+		  return (void *)0;
+		}
+int
+main ()
+{
+pthread_t thread;
+		void *thread_retval;
+		int *volatile a_in_main_thread;
+		a_in_main_thread = &a;
+		if (pthread_create (&thread, (pthread_attr_t *)0,
+				    thread_func, (void *)0))
+		  return 0;
+		if (pthread_join (thread, &thread_retval))
+		  return 0;
+		return (a_in_other_thread == a_in_main_thread);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+	  CFLAGS="$chktls_save_CFLAGS"
+	fi
+      fi
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_have_tls" >&5
+$as_echo "$gcc_cv_have_tls" >&6; }
+  if test "$enable_tls $gcc_cv_have_tls" = "yes yes"; then
+    
+$as_echo "@%:@define HAVE_TLS 1" >>confdefs.h
+
+  fi
+
+  for ac_func in __cxa_thread_atexit_impl __cxa_thread_atexit
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  for ac_func in aligned_alloc posix_memalign memalign _aligned_malloc
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  for ac_func in _wfopen
+do :
+  ac_fn_c_check_func "$LINENO" "_wfopen" "ac_cv_func__wfopen"
+if test "x$ac_cv_func__wfopen" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__WFOPEN 1
+_ACEOF
+ 
+fi
+done
+
+  for ac_func in secure_getenv
+do :
+  ac_fn_c_check_func "$LINENO" "secure_getenv" "ac_cv_func_secure_getenv"
+if test "x$ac_cv_func_secure_getenv" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SECURE_GETENV 1
+_ACEOF
+ 
+fi
+done
+
+
+  # C11 functions for C++17 library
+  for ac_func in timespec_get
+do :
+  ac_fn_c_check_func "$LINENO" "timespec_get" "ac_cv_func_timespec_get"
+if test "x$ac_cv_func_timespec_get" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TIMESPEC_GET 1
+_ACEOF
+ 
+fi
+done
+
+
+  # For Networking TS.
+  for ac_func in sockatmark
+do :
+  ac_fn_c_check_func "$LINENO" "sockatmark" "ac_cv_func_sockatmark"
+if test "x$ac_cv_func_sockatmark" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SOCKATMARK 1
+_ACEOF
+ 
+fi
+done
+
+
+  # Non-standard functions used by C++17 std::from_chars
+  for ac_func in uselocale
+do :
+  ac_fn_c_check_func "$LINENO" "uselocale" "ac_cv_func_uselocale"
+if test "x$ac_cv_func_uselocale" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_USELOCALE 1
+_ACEOF
+ 
+fi
+done
+
+
+  # For iconv support.
+  
+      if test "X$prefix" = "XNONE"; then
+    acl_final_prefix="$ac_default_prefix"
+  else
+    acl_final_prefix="$prefix"
+  fi
+  if test "X$exec_prefix" = "XNONE"; then
+    acl_final_exec_prefix='${prefix}'
+  else
+    acl_final_exec_prefix="$exec_prefix"
+  fi
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
+  prefix="$acl_save_prefix"
+
+
+@%:@ Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by GCC" >&5
+$as_echo_n "checking for ld used by GCC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | [A-Za-z]:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${acl_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      acl_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some GNU ld's only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
+	test "$with_gnu_ld" != no && break
+      else
+	test "$with_gnu_ld" != yes && break
+      fi
+    fi
+  done
+  IFS="$ac_save_ifs"
+else
+  acl_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$acl_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${acl_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
+if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
+  acl_cv_prog_gnu_ld=yes
+else
+  acl_cv_prog_gnu_ld=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_prog_gnu_ld" >&5
+$as_echo "$acl_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$acl_cv_prog_gnu_ld
+
+
+
+                                                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shared library run path origin" >&5
+$as_echo_n "checking for shared library run path origin... " >&6; }
+if ${acl_cv_rpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
+    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
+    . ./conftest.sh
+    rm -f ./conftest.sh
+    acl_cv_rpath=done
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_rpath" >&5
+$as_echo "$acl_cv_rpath" >&6; }
+  wl="$acl_cv_wl"
+  libext="$acl_cv_libext"
+  shlibext="$acl_cv_shlibext"
+  hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
+  hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
+  hardcode_direct="$acl_cv_hardcode_direct"
+  hardcode_minus_L="$acl_cv_hardcode_minus_L"
+    @%:@ Check whether --enable-rpath was given.
+if test "${enable_rpath+set}" = set; then :
+  enableval=$enable_rpath; :
+else
+  enable_rpath=yes
+fi
+
+
+
+    
+  
+
+      
+  
+    use_additional=yes
+  
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  
+    eval additional_includedir=\"$includedir\"
+    eval additional_libdir=\"$libdir\"
+  
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+  
+@%:@ Check whether --with-libiconv-prefix was given.
+if test "${with_libiconv_prefix+set}" = set; then :
+  withval=$with_libiconv_prefix; 
+    if test "X$withval" = "Xno"; then
+      use_additional=no
+    else
+      if test "X$withval" = "X"; then
+        
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  
+          eval additional_includedir=\"$includedir\"
+          eval additional_libdir=\"$libdir\"
+        
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      else
+        additional_includedir="$withval/include"
+        additional_libdir="$withval/lib"
+      fi
+    fi
+
+fi
+
+  
+@%:@ Check whether --with-libiconv-type was given.
+if test "${with_libiconv_type+set}" = set; then :
+  withval=$with_libiconv_type;  with_libiconv_type=$withval 
+else
+   with_libiconv_type=auto 
+fi
+
+  lib_type=`eval echo \$with_libiconv_type`
+
+      LIBICONV=
+  LTLIBICONV=
+  INCICONV=
+  rpathdirs=
+  ltrpathdirs=
+  names_already_handled=
+  names_next_round='iconv '
+  while test -n "$names_next_round"; do
+    names_this_round="$names_next_round"
+    names_next_round=
+    for name in $names_this_round; do
+      already_handled=
+      for n in $names_already_handled; do
+        if test "$n" = "$name"; then
+          already_handled=yes
+          break
+        fi
+      done
+      if test -z "$already_handled"; then
+        names_already_handled="$names_already_handled $name"
+                        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+        eval value=\"\$HAVE_LIB$uppername\"
+        if test -n "$value"; then
+          if test "$value" = yes; then
+            eval value=\"\$LIB$uppername\"
+            test -z "$value" || LIBICONV="${LIBICONV}${LIBICONV:+ }$value"
+            eval value=\"\$LTLIB$uppername\"
+            test -z "$value" || LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }$value"
+          else
+                                    :
+          fi
+        else
+                              found_dir=
+          found_la=
+          found_so=
+          found_a=
+          if test $use_additional = yes; then
+            if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext" && test x$lib_type != xstatic; then
+              found_dir="$additional_libdir"
+              found_so="$additional_libdir/lib$name.$shlibext"
+              if test -f "$additional_libdir/lib$name.la"; then
+                found_la="$additional_libdir/lib$name.la"
+              fi
+            elif test x$lib_type != xshared; then
+              if test -f "$additional_libdir/lib$name.$libext"; then
+                found_dir="$additional_libdir"
+                found_a="$additional_libdir/lib$name.$libext"
+                if test -f "$additional_libdir/lib$name.la"; then
+                  found_la="$additional_libdir/lib$name.la"
+                fi
+              fi
+            fi
+          fi
+          if test "X$found_dir" = "X"; then
+            for x in $LDFLAGS $LTLIBICONV; do
+              
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+              case "$x" in
+                -L*)
+                  dir=`echo "X$x" | sed -e 's/^X-L//'`
+                  if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext" && test x$lib_type != xstatic; then
+                    found_dir="$dir"
+                    found_so="$dir/lib$name.$shlibext"
+                    if test -f "$dir/lib$name.la"; then
+                      found_la="$dir/lib$name.la"
+                    fi
+                  elif test x$lib_type != xshared; then
+                    if test -f "$dir/lib$name.$libext"; then
+                      found_dir="$dir"
+                      found_a="$dir/lib$name.$libext"
+                      if test -f "$dir/lib$name.la"; then
+                        found_la="$dir/lib$name.la"
+                      fi
+                    fi
+                  fi
+                  ;;
+              esac
+              if test "X$found_dir" != "X"; then
+                break
+              fi
+            done
+          fi
+          if test "X$found_dir" != "X"; then
+                        LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-L$found_dir -l$name"
+            if test "X$found_so" != "X"; then
+                                                        if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then
+                                LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+              else
+                                                                                haveit=
+                for x in $ltrpathdirs; do
+                  if test "X$x" = "X$found_dir"; then
+                    haveit=yes
+                    break
+                  fi
+                done
+                if test -z "$haveit"; then
+                  ltrpathdirs="$ltrpathdirs $found_dir"
+                fi
+                                if test "$hardcode_direct" = yes; then
+                                                      LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+                else
+                  if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
+                                                            LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+                                                            haveit=
+                    for x in $rpathdirs; do
+                      if test "X$x" = "X$found_dir"; then
+                        haveit=yes
+                        break
+                      fi
+                    done
+                    if test -z "$haveit"; then
+                      rpathdirs="$rpathdirs $found_dir"
+                    fi
+                  else
+                                                                                haveit=
+                    for x in $LDFLAGS $LIBICONV; do
+                      
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+                      if test "X$x" = "X-L$found_dir"; then
+                        haveit=yes
+                        break
+                      fi
+                    done
+                    if test -z "$haveit"; then
+                      LIBICONV="${LIBICONV}${LIBICONV:+ }-L$found_dir"
+                    fi
+                    if test "$hardcode_minus_L" != no; then
+                                                                                        LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+                    else
+                                                                                                                                                                                LIBICONV="${LIBICONV}${LIBICONV:+ }-l$name"
+                    fi
+                  fi
+                fi
+              fi
+            else
+              if test "X$found_a" != "X"; then
+                                LIBICONV="${LIBICONV}${LIBICONV:+ }$found_a"
+              else
+                                                LIBICONV="${LIBICONV}${LIBICONV:+ }-L$found_dir -l$name"
+              fi
+            fi
+                        additional_includedir=
+            case "$found_dir" in
+              */lib | */lib/)
+                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'`
+                additional_includedir="$basedir/include"
+                ;;
+            esac
+            if test "X$additional_includedir" != "X"; then
+                                                                                                                if test "X$additional_includedir" != "X/usr/include"; then
+                haveit=
+                if test "X$additional_includedir" = "X/usr/local/include"; then
+                  if test -n "$GCC"; then
+                    case $host_os in
+                      linux*) haveit=yes;;
+                    esac
+                  fi
+                fi
+                if test -z "$haveit"; then
+                  for x in $CPPFLAGS $INCICONV; do
+                    
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+                    if test "X$x" = "X-I$additional_includedir"; then
+                      haveit=yes
+                      break
+                    fi
+                  done
+                  if test -z "$haveit"; then
+                    if test -d "$additional_includedir"; then
+                                            INCICONV="${INCICONV}${INCICONV:+ }-I$additional_includedir"
+                    fi
+                  fi
+                fi
+              fi
+            fi
+                        if test -n "$found_la"; then
+                                                        save_libdir="$libdir"
+              case "$found_la" in
+                */* | *\\*) . "$found_la" ;;
+                *) . "./$found_la" ;;
+              esac
+              libdir="$save_libdir"
+                            for dep in $dependency_libs; do
+                case "$dep" in
+                  -L*)
+                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+                                                                                                                                                                if test "X$additional_libdir" != "X/usr/lib"; then
+                      haveit=
+                      if test "X$additional_libdir" = "X/usr/local/lib"; then
+                        if test -n "$GCC"; then
+                          case $host_os in
+                            linux*) haveit=yes;;
+                          esac
+                        fi
+                      fi
+                      if test -z "$haveit"; then
+                        haveit=
+                        for x in $LDFLAGS $LIBICONV; do
+                          
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+                          if test "X$x" = "X-L$additional_libdir"; then
+                            haveit=yes
+                            break
+                          fi
+                        done
+                        if test -z "$haveit"; then
+                          if test -d "$additional_libdir"; then
+                                                        LIBICONV="${LIBICONV}${LIBICONV:+ }-L$additional_libdir"
+                          fi
+                        fi
+                        haveit=
+                        for x in $LDFLAGS $LTLIBICONV; do
+                          
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+                          if test "X$x" = "X-L$additional_libdir"; then
+                            haveit=yes
+                            break
+                          fi
+                        done
+                        if test -z "$haveit"; then
+                          if test -d "$additional_libdir"; then
+                                                        LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-L$additional_libdir"
+                          fi
+                        fi
+                      fi
+                    fi
+                    ;;
+                  -R*)
+                    dir=`echo "X$dep" | sed -e 's/^X-R//'`
+                    if test "$enable_rpath" != no; then
+                                                                  haveit=
+                      for x in $rpathdirs; do
+                        if test "X$x" = "X$dir"; then
+                          haveit=yes
+                          break
+                        fi
+                      done
+                      if test -z "$haveit"; then
+                        rpathdirs="$rpathdirs $dir"
+                      fi
+                                                                  haveit=
+                      for x in $ltrpathdirs; do
+                        if test "X$x" = "X$dir"; then
+                          haveit=yes
+                          break
+                        fi
+                      done
+                      if test -z "$haveit"; then
+                        ltrpathdirs="$ltrpathdirs $dir"
+                      fi
+                    fi
+                    ;;
+                  -l*)
+                                        names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
+                    ;;
+                  *.la)
+                                                                                names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
+                    ;;
+                  *)
+                                        LIBICONV="${LIBICONV}${LIBICONV:+ }$dep"
+                    LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }$dep"
+                    ;;
+                esac
+              done
+            fi
+          else
+                                                            if test "x$lib_type" = "xauto" || test "x$lib_type" = "xshared"; then
+              LIBICONV="${LIBICONV}${LIBICONV:+ }-l$name"
+              LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-l$name"
+            else
+              LIBICONV="${LIBICONV}${LIBICONV:+ }-l:lib$name.$libext"
+              LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-l:lib$name.$libext"
+            fi
+          fi
+        fi
+      fi
+    done
+  done
+  if test "X$rpathdirs" != "X"; then
+    if test -n "$hardcode_libdir_separator"; then
+                        alldirs=
+      for found_dir in $rpathdirs; do
+        alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
+      done
+            acl_save_libdir="$libdir"
+      libdir="$alldirs"
+      eval flag=\"$hardcode_libdir_flag_spec\"
+      libdir="$acl_save_libdir"
+      LIBICONV="${LIBICONV}${LIBICONV:+ }$flag"
+    else
+            for found_dir in $rpathdirs; do
+        acl_save_libdir="$libdir"
+        libdir="$found_dir"
+        eval flag=\"$hardcode_libdir_flag_spec\"
+        libdir="$acl_save_libdir"
+        LIBICONV="${LIBICONV}${LIBICONV:+ }$flag"
+      done
+    fi
+  fi
+  if test "X$ltrpathdirs" != "X"; then
+            for found_dir in $ltrpathdirs; do
+      LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-R$found_dir"
+    done
+  fi
+
+
+
+  
+    
+      
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv" >&5
+$as_echo_n "checking for iconv... " >&6; }
+if ${am_cv_func_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    am_cv_func_iconv="no, consider installing GNU libiconv"
+    am_cv_lib_iconv=no
+                    am_save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $INCICONV"
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+       iconv(cd,NULL,NULL,NULL,NULL);
+       iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    CPPFLAGS="$am_save_CPPFLAGS"
+
+    if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
+      for _libs in .libs _libs; do
+        am_save_CPPFLAGS="$CPPFLAGS"
+        am_save_LIBS="$LIBS"
+        CPPFLAGS="$CPPFLAGS -I../libiconv/include"
+        LIBS="$LIBS ../libiconv/lib/$_libs/libiconv.a"
+        if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  INCICONV="-I../libiconv/include"
+          LIBICONV='${top_builddir}'/../libiconv/lib/$_libs/libiconv.a
+          LTLIBICONV='${top_builddir}'/../libiconv/lib/libiconv.la
+          am_cv_lib_iconv=yes
+          am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        CPPFLAGS="$am_save_CPPFLAGS"
+        LIBS="$am_save_LIBS"
+        if test "$am_cv_func_iconv" = "yes"; then
+          break
+        fi
+      done
+    fi
+
+    if test "$am_cv_func_iconv" != yes; then
+      am_save_CPPFLAGS="$CPPFLAGS"
+      am_save_LIBS="$LIBS"
+      CPPFLAGS="$CPPFLAGS $INCICONV"
+      LIBS="$LIBS $LIBICONV"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+         iconv(cd,NULL,NULL,NULL,NULL);
+         iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_lib_iconv=yes
+        am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS="$am_save_CPPFLAGS"
+      LIBS="$am_save_LIBS"
+    fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_func_iconv" >&5
+$as_echo "$am_cv_func_iconv" >&6; }
+  if test "$am_cv_func_iconv" = yes; then
+    
+$as_echo "@%:@define HAVE_ICONV 1" >>confdefs.h
+
+  fi
+  if test "$am_cv_lib_iconv" = yes; then
+    
+  for element in $INCICONV; do
+    haveit=
+    for x in $CPPFLAGS; do
+      
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+    fi
+  done
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libiconv" >&5
+$as_echo_n "checking how to link with libiconv... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBICONV" >&5
+$as_echo "$LIBICONV" >&6; }
+  else
+    LIBICONV=
+    LTLIBICONV=
+  fi
+  
+  
+
+  if test "$am_cv_func_iconv" = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv declaration" >&5
+$as_echo_n "checking for iconv declaration... " >&6; }
+    if ${am_cv_proto_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+#if defined(__STDC__) || defined(__cplusplus)
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+#else
+size_t iconv();
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  am_cv_proto_iconv_arg1=""
+else
+  am_cv_proto_iconv_arg1="const"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"
+fi
+
+    am_cv_proto_iconv=`echo "$am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_t:-
+         }$am_cv_proto_iconv" >&5
+$as_echo "${ac_t:-
+         }$am_cv_proto_iconv" >&6; }
+    
+cat >>confdefs.h <<_ACEOF
+@%:@define ICONV_CONST $am_cv_proto_iconv_arg1
+_ACEOF
+
+  fi
+
+
+else
+
+  # This lets us hard-code the functionality we know we'll have in the cross
+  # target environment.  "Let" is a sugar-coated word placed on an especially
+  # dull and tedious hack, actually.
+  #
+  # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros
+  # that involve linking, can't be used:
+  #    "cannot open sim-crt0.o"
+  #    "cannot open crt0.o"
+  # etc.  All this is because there currently exists no unified, consistent
+  # way for top level CC information to be passed down to target directories:
+  # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc.
+  # When all of that is done, all of this hokey, excessive AC_DEFINE junk for
+  # crosses can be removed.
+
+  # If Canadian cross, then don't pick up tools from the build directory.
+  # Used only in GLIBCXX_EXPORT_INCLUDES.
+  if test -n "$with_cross_host" &&
+     test x"$build_alias" != x"$with_cross_host" &&
+     test x"$build" != x"$target";
+  then
+    CANADIAN=yes
+  else
+    CANADIAN=no
+  fi
+
+  # Construct crosses by hand, eliminating bits that need ld...
+  # GLIBCXX_CHECK_MATH_SUPPORT
+
+  # First, test for "known" system libraries.  We may be using newlib even
+  # on a hosted environment.
+  if test "x${with_newlib}" = "xyes"; then
+    os_include_dir="os/newlib"
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+
+    # GLIBCXX_CHECK_STDLIB_SUPPORT
+    $as_echo "@%:@define HAVE_STRTOF 1" >>confdefs.h
+
+
+    $as_echo "@%:@define HAVE_ACOSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_CEILF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FLOORF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LDEXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODFF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHF 1" >>confdefs.h
+
+
+    $as_echo "@%:@define HAVE_ICONV 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MEMALIGN 1" >>confdefs.h
+
+  elif test "x$with_headers" != "xno"; then
+    
+# Base decisions on target environment.
+case "${host}" in
+  arm*-*-symbianelf*)
+    # This is a freestanding configuration; there is nothing to do here.
+    ;;
+
+  *-banan_os*)
+    
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  
+
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    ;;
+
+  avr*-*-*)
+    $as_echo "@%:@define HAVE_ACOSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_CEILF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FLOORF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LDEXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODFF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHF 1" >>confdefs.h
+
+    ;;
+
+  mips*-sde-elf*)
+    # These definitions are for the SDE C library rather than newlib.
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+    
+    
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  
+
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+
+    $as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+
+    $as_echo "@%:@define HAVE_LDEXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+    ;;
+
+  *-aix*)
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    $as_echo "@%:@define _GLIBCXX_USE_DEV_RANDOM 1" >>confdefs.h
+
+    $as_echo "@%:@define _GLIBCXX_USE_RANDOM_TR1 1" >>confdefs.h
+
+    # We don't yet support AIX's TLS ABI.
+    #GCC_CHECK_TLS
+    
+  
+    
+      
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv" >&5
+$as_echo_n "checking for iconv... " >&6; }
+if ${am_cv_func_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    am_cv_func_iconv="no, consider installing GNU libiconv"
+    am_cv_lib_iconv=no
+                    am_save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $INCICONV"
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+       iconv(cd,NULL,NULL,NULL,NULL);
+       iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    CPPFLAGS="$am_save_CPPFLAGS"
+
+    if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
+      for _libs in .libs _libs; do
+        am_save_CPPFLAGS="$CPPFLAGS"
+        am_save_LIBS="$LIBS"
+        CPPFLAGS="$CPPFLAGS -I../libiconv/include"
+        LIBS="$LIBS ../libiconv/lib/$_libs/libiconv.a"
+        if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  INCICONV="-I../libiconv/include"
+          LIBICONV='${top_builddir}'/../libiconv/lib/$_libs/libiconv.a
+          LTLIBICONV='${top_builddir}'/../libiconv/lib/libiconv.la
+          am_cv_lib_iconv=yes
+          am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        CPPFLAGS="$am_save_CPPFLAGS"
+        LIBS="$am_save_LIBS"
+        if test "$am_cv_func_iconv" = "yes"; then
+          break
+        fi
+      done
+    fi
+
+    if test "$am_cv_func_iconv" != yes; then
+      am_save_CPPFLAGS="$CPPFLAGS"
+      am_save_LIBS="$LIBS"
+      CPPFLAGS="$CPPFLAGS $INCICONV"
+      LIBS="$LIBS $LIBICONV"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+         iconv(cd,NULL,NULL,NULL,NULL);
+         iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_lib_iconv=yes
+        am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS="$am_save_CPPFLAGS"
+      LIBS="$am_save_LIBS"
+    fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_func_iconv" >&5
+$as_echo "$am_cv_func_iconv" >&6; }
+  if test "$am_cv_func_iconv" = yes; then
+    
+$as_echo "@%:@define HAVE_ICONV 1" >>confdefs.h
+
+  fi
+  if test "$am_cv_lib_iconv" = yes; then
+    
+  for element in $INCICONV; do
+    haveit=
+    for x in $CPPFLAGS; do
+      
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+    fi
+  done
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libiconv" >&5
+$as_echo_n "checking how to link with libiconv... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBICONV" >&5
+$as_echo "$LIBICONV" >&6; }
+  else
+    LIBICONV=
+    LTLIBICONV=
+  fi
+  
+  
+
+  if test "$am_cv_func_iconv" = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv declaration" >&5
+$as_echo_n "checking for iconv declaration... " >&6; }
+    if ${am_cv_proto_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+#if defined(__STDC__) || defined(__cplusplus)
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+#else
+size_t iconv();
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  am_cv_proto_iconv_arg1=""
+else
+  am_cv_proto_iconv_arg1="const"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"
+fi
+
+    am_cv_proto_iconv=`echo "$am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_t:-
+         }$am_cv_proto_iconv" >&5
+$as_echo "${ac_t:-
+         }$am_cv_proto_iconv" >&6; }
+    
+cat >>confdefs.h <<_ACEOF
+@%:@define ICONV_CONST $am_cv_proto_iconv_arg1
+_ACEOF
+
+  fi
+
+
+    $as_echo "@%:@define HAVE_USELOCALE 1" >>confdefs.h
+
+    ;;
+
+  *-darwin*)
+    # Darwin versions vary, but the linker should work in a cross environment,
+    # so we just check for all the features here.
+    # Check for available headers.
+
+    # Don't call GLIBCXX_CHECK_LINKER_FEATURES, Darwin doesn't have a GNU ld
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+
+    for ac_func in uselocale
+do :
+  ac_fn_c_check_func "$LINENO" "uselocale" "ac_cv_func_uselocale"
+if test "x$ac_cv_func_uselocale" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_USELOCALE 1
+_ACEOF
+ 
+fi
+done
+
+    ;;
+
+  *djgpp)
+    # GLIBCXX_CHECK_MATH_SUPPORT
+    $as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINCOS 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+    ;;
+
+  *-freebsd*)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+     
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    $as_echo "@%:@define HAVE_SETENV 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FINITEF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNANF 1" >>confdefs.h
+
+
+    $as_echo "@%:@define HAVE_ACOSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_CEILF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FLOORF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LDEXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODFF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHF 1" >>confdefs.h
+
+    if test x"long_double_math_on_this_cpu" = x"yes"; then
+      $as_echo "@%:@define HAVE_FINITEL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISINFL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISNANL 1" >>confdefs.h
+
+    fi
+    for ac_func in __cxa_thread_atexit
+do :
+  ac_fn_c_check_func "$LINENO" "__cxa_thread_atexit" "ac_cv_func___cxa_thread_atexit"
+if test "x$ac_cv_func___cxa_thread_atexit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE___CXA_THREAD_ATEXIT 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in aligned_alloc posix_memalign memalign _aligned_malloc
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in timespec_get
+do :
+  ac_fn_c_check_func "$LINENO" "timespec_get" "ac_cv_func_timespec_get"
+if test "x$ac_cv_func_timespec_get" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TIMESPEC_GET 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in sockatmark
+do :
+  ac_fn_c_check_func "$LINENO" "sockatmark" "ac_cv_func_sockatmark"
+if test "x$ac_cv_func_sockatmark" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SOCKATMARK 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in uselocale
+do :
+  ac_fn_c_check_func "$LINENO" "uselocale" "ac_cv_func_uselocale"
+if test "x$ac_cv_func_uselocale" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_USELOCALE 1
+_ACEOF
+ 
+fi
+done
+
+    ;;
+
+  *-fuchsia*)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+    
+    ;;
+
+  *-hpux*)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+    
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+
+    # GLIBCXX_CHECK_MATH_SUPPORT
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ACOSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+
+    # GLIBCXX_CHECK_STDLIB_SUPPORT
+    $as_echo "@%:@define HAVE_STRTOLD 1" >>confdefs.h
+
+
+    
+  
+   @%:@ Check whether --enable-tls was given.
+if test "${enable_tls+set}" = set; then :
+  enableval=$enable_tls; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable tls must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_tls=yes
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports thread-local storage" >&5
+$as_echo_n "checking whether the target supports thread-local storage... " >&6; }
+if ${gcc_cv_have_tls+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test "$cross_compiling" = yes; then :
+                if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  chktls_save_LDFLAGS="$LDFLAGS"
+	  	  	  case $host in
+	    *-*-linux* | -*-uclinuxfdpic*)
+	      LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
+	      ;;
+	  esac
+	  chktls_save_CFLAGS="$CFLAGS"
+	  CFLAGS="-fPIC $CFLAGS"
+	  	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int f() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int f() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  CFLAGS="$chktls_save_CFLAGS"
+	  LDFLAGS="$chktls_save_LDFLAGS"
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      
+    
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+                      chktls_save_LDFLAGS="$LDFLAGS"
+      LDFLAGS="-static $LDFLAGS"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      LDFLAGS="$chktls_save_LDFLAGS"
+      if test $gcc_cv_have_tls = yes; then
+						chktls_save_CFLAGS="$CFLAGS"
+	thread_CFLAGS=failed
+	for flag in '' '-pthread' '-lpthread'; do
+	  CFLAGS="$flag $chktls_save_CFLAGS"
+	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		void *g(void *d) { return NULL; }
+int
+main ()
+{
+pthread_t t; pthread_create(&t,NULL,g,NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  thread_CFLAGS="$flag"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  if test "X$thread_CFLAGS" != Xfailed; then
+	    break
+	  fi
+	done
+	CFLAGS="$chktls_save_CFLAGS"
+	if test "X$thread_CFLAGS" != Xfailed; then
+	  CFLAGS="$thread_CFLAGS $chktls_save_CFLAGS"
+ 	  	  	  	  	  	  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		__thread int a;
+		static int *volatile a_in_other_thread;
+		static void *
+		thread_func (void *arg)
+		{
+		  a_in_other_thread = &a;
+		  return (void *)0;
+		}
+int
+main ()
+{
+pthread_t thread;
+		void *thread_retval;
+		int *volatile a_in_main_thread;
+		a_in_main_thread = &a;
+		if (pthread_create (&thread, (pthread_attr_t *)0,
+				    thread_func, (void *)0))
+		  return 0;
+		if (pthread_join (thread, &thread_retval))
+		  return 0;
+		return (a_in_other_thread == a_in_main_thread);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+	  CFLAGS="$chktls_save_CFLAGS"
+	fi
+      fi
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_have_tls" >&5
+$as_echo "$gcc_cv_have_tls" >&6; }
+  if test "$enable_tls $gcc_cv_have_tls" = "yes yes"; then
+    
+$as_echo "@%:@define HAVE_TLS 1" >>confdefs.h
+
+  fi
+    case "$target" in
+      *-hpux10*)
+	$as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+	$as_echo "@%:@define HAVE_ISINFF 1" >>confdefs.h
+
+	$as_echo "@%:@define HAVE_ISNANF 1" >>confdefs.h
+
+	$as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+	$as_echo "@%:@define HAVE_FINITEF 1" >>confdefs.h
+
+	;;
+    esac
+    ;;
+  *-linux* | *-uclinux* | *-gnu* | *-kfreebsd*-gnu | *-cygwin* | *-solaris*)
+    
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  
+
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    $as_echo "@%:@define _GLIBCXX_USE_DEV_RANDOM 1" >>confdefs.h
+
+    $as_echo "@%:@define _GLIBCXX_USE_RANDOM_TR1 1" >>confdefs.h
+
+    
+  
+   @%:@ Check whether --enable-tls was given.
+if test "${enable_tls+set}" = set; then :
+  enableval=$enable_tls; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable tls must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_tls=yes
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports thread-local storage" >&5
+$as_echo_n "checking whether the target supports thread-local storage... " >&6; }
+if ${gcc_cv_have_tls+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test "$cross_compiling" = yes; then :
+                if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  chktls_save_LDFLAGS="$LDFLAGS"
+	  	  	  case $host in
+	    *-*-linux* | -*-uclinuxfdpic*)
+	      LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
+	      ;;
+	  esac
+	  chktls_save_CFLAGS="$CFLAGS"
+	  CFLAGS="-fPIC $CFLAGS"
+	  	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int f() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int f() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  CFLAGS="$chktls_save_CFLAGS"
+	  LDFLAGS="$chktls_save_LDFLAGS"
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      
+    
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+                      chktls_save_LDFLAGS="$LDFLAGS"
+      LDFLAGS="-static $LDFLAGS"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      LDFLAGS="$chktls_save_LDFLAGS"
+      if test $gcc_cv_have_tls = yes; then
+						chktls_save_CFLAGS="$CFLAGS"
+	thread_CFLAGS=failed
+	for flag in '' '-pthread' '-lpthread'; do
+	  CFLAGS="$flag $chktls_save_CFLAGS"
+	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		void *g(void *d) { return NULL; }
+int
+main ()
+{
+pthread_t t; pthread_create(&t,NULL,g,NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  thread_CFLAGS="$flag"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  if test "X$thread_CFLAGS" != Xfailed; then
+	    break
+	  fi
+	done
+	CFLAGS="$chktls_save_CFLAGS"
+	if test "X$thread_CFLAGS" != Xfailed; then
+	  CFLAGS="$thread_CFLAGS $chktls_save_CFLAGS"
+ 	  	  	  	  	  	  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		__thread int a;
+		static int *volatile a_in_other_thread;
+		static void *
+		thread_func (void *arg)
+		{
+		  a_in_other_thread = &a;
+		  return (void *)0;
+		}
+int
+main ()
+{
+pthread_t thread;
+		void *thread_retval;
+		int *volatile a_in_main_thread;
+		a_in_main_thread = &a;
+		if (pthread_create (&thread, (pthread_attr_t *)0,
+				    thread_func, (void *)0))
+		  return 0;
+		if (pthread_join (thread, &thread_retval))
+		  return 0;
+		return (a_in_other_thread == a_in_main_thread);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+	  CFLAGS="$chktls_save_CFLAGS"
+	fi
+      fi
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_have_tls" >&5
+$as_echo "$gcc_cv_have_tls" >&6; }
+  if test "$enable_tls $gcc_cv_have_tls" = "yes yes"; then
+    
+$as_echo "@%:@define HAVE_TLS 1" >>confdefs.h
+
+  fi
+    for ac_func in __cxa_thread_atexit_impl
+do :
+  ac_fn_c_check_func "$LINENO" "__cxa_thread_atexit_impl" "ac_cv_func___cxa_thread_atexit_impl"
+if test "x$ac_cv_func___cxa_thread_atexit_impl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE___CXA_THREAD_ATEXIT_IMPL 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in aligned_alloc posix_memalign memalign _aligned_malloc
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in timespec_get
+do :
+  ac_fn_c_check_func "$LINENO" "timespec_get" "ac_cv_func_timespec_get"
+if test "x$ac_cv_func_timespec_get" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TIMESPEC_GET 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in sockatmark
+do :
+  ac_fn_c_check_func "$LINENO" "sockatmark" "ac_cv_func_sockatmark"
+if test "x$ac_cv_func_sockatmark" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SOCKATMARK 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in uselocale
+do :
+  ac_fn_c_check_func "$LINENO" "uselocale" "ac_cv_func_uselocale"
+if test "x$ac_cv_func_uselocale" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_USELOCALE 1
+_ACEOF
+ 
+fi
+done
+
+    
+  
+    
+      
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv" >&5
+$as_echo_n "checking for iconv... " >&6; }
+if ${am_cv_func_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    am_cv_func_iconv="no, consider installing GNU libiconv"
+    am_cv_lib_iconv=no
+                    am_save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $INCICONV"
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+       iconv(cd,NULL,NULL,NULL,NULL);
+       iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    CPPFLAGS="$am_save_CPPFLAGS"
+
+    if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
+      for _libs in .libs _libs; do
+        am_save_CPPFLAGS="$CPPFLAGS"
+        am_save_LIBS="$LIBS"
+        CPPFLAGS="$CPPFLAGS -I../libiconv/include"
+        LIBS="$LIBS ../libiconv/lib/$_libs/libiconv.a"
+        if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  INCICONV="-I../libiconv/include"
+          LIBICONV='${top_builddir}'/../libiconv/lib/$_libs/libiconv.a
+          LTLIBICONV='${top_builddir}'/../libiconv/lib/libiconv.la
+          am_cv_lib_iconv=yes
+          am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        CPPFLAGS="$am_save_CPPFLAGS"
+        LIBS="$am_save_LIBS"
+        if test "$am_cv_func_iconv" = "yes"; then
+          break
+        fi
+      done
+    fi
+
+    if test "$am_cv_func_iconv" != yes; then
+      am_save_CPPFLAGS="$CPPFLAGS"
+      am_save_LIBS="$LIBS"
+      CPPFLAGS="$CPPFLAGS $INCICONV"
+      LIBS="$LIBS $LIBICONV"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+         iconv(cd,NULL,NULL,NULL,NULL);
+         iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  am_cv_lib_iconv=yes
+        am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS="$am_save_CPPFLAGS"
+      LIBS="$am_save_LIBS"
+    fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_func_iconv" >&5
+$as_echo "$am_cv_func_iconv" >&6; }
+  if test "$am_cv_func_iconv" = yes; then
+    
+$as_echo "@%:@define HAVE_ICONV 1" >>confdefs.h
+
+  fi
+  if test "$am_cv_lib_iconv" = yes; then
+    
+  for element in $INCICONV; do
+    haveit=
+    for x in $CPPFLAGS; do
+      
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+    fi
+  done
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libiconv" >&5
+$as_echo_n "checking how to link with libiconv... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBICONV" >&5
+$as_echo "$LIBICONV" >&6; }
+  else
+    LIBICONV=
+    LTLIBICONV=
+  fi
+  
+  
+
+  if test "$am_cv_func_iconv" = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv declaration" >&5
+$as_echo_n "checking for iconv declaration... " >&6; }
+    if ${am_cv_proto_iconv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+#if defined(__STDC__) || defined(__cplusplus)
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+#else
+size_t iconv();
+#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  am_cv_proto_iconv_arg1=""
+else
+  am_cv_proto_iconv_arg1="const"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"
+fi
+
+    am_cv_proto_iconv=`echo "$am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_t:-
+         }$am_cv_proto_iconv" >&5
+$as_echo "${ac_t:-
+         }$am_cv_proto_iconv" >&6; }
+    
+cat >>confdefs.h <<_ACEOF
+@%:@define ICONV_CONST $am_cv_proto_iconv_arg1
+_ACEOF
+
+  fi
+
+    ;;
+  *-mingw32*)
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    for ac_func in aligned_alloc posix_memalign memalign _aligned_malloc
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in _wfopen
+do :
+  ac_fn_c_check_func "$LINENO" "_wfopen" "ac_cv_func__wfopen"
+if test "x$ac_cv_func__wfopen" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__WFOPEN 1
+_ACEOF
+ 
+fi
+done
+
+    
+  
+   @%:@ Check whether --enable-tls was given.
+if test "${enable_tls+set}" = set; then :
+  enableval=$enable_tls; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable tls must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_tls=yes
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports thread-local storage" >&5
+$as_echo_n "checking whether the target supports thread-local storage... " >&6; }
+if ${gcc_cv_have_tls+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    if test "$cross_compiling" = yes; then :
+                if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  chktls_save_LDFLAGS="$LDFLAGS"
+	  	  	  case $host in
+	    *-*-linux* | -*-uclinuxfdpic*)
+	      LDFLAGS="-shared -Wl,--no-undefined $LDFLAGS"
+	      ;;
+	  esac
+	  chktls_save_CFLAGS="$CFLAGS"
+	  CFLAGS="-fPIC $CFLAGS"
+	  	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int f() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int f() { return a = b; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  CFLAGS="$chktls_save_CFLAGS"
+	  LDFLAGS="$chktls_save_LDFLAGS"
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      
+    
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+                      chktls_save_LDFLAGS="$LDFLAGS"
+      LDFLAGS="-static $LDFLAGS"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main() { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+__thread int a; int b; int main() { return a = b; }
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+else
+  gcc_cv_have_tls=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      LDFLAGS="$chktls_save_LDFLAGS"
+      if test $gcc_cv_have_tls = yes; then
+						chktls_save_CFLAGS="$CFLAGS"
+	thread_CFLAGS=failed
+	for flag in '' '-pthread' '-lpthread'; do
+	  CFLAGS="$flag $chktls_save_CFLAGS"
+	  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		void *g(void *d) { return NULL; }
+int
+main ()
+{
+pthread_t t; pthread_create(&t,NULL,g,NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  thread_CFLAGS="$flag"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	  if test "X$thread_CFLAGS" != Xfailed; then
+	    break
+	  fi
+	done
+	CFLAGS="$chktls_save_CFLAGS"
+	if test "X$thread_CFLAGS" != Xfailed; then
+	  CFLAGS="$thread_CFLAGS $chktls_save_CFLAGS"
+ 	  	  	  	  	  	  if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pthread.h>
+		__thread int a;
+		static int *volatile a_in_other_thread;
+		static void *
+		thread_func (void *arg)
+		{
+		  a_in_other_thread = &a;
+		  return (void *)0;
+		}
+int
+main ()
+{
+pthread_t thread;
+		void *thread_retval;
+		int *volatile a_in_main_thread;
+		a_in_main_thread = &a;
+		if (pthread_create (&thread, (pthread_attr_t *)0,
+				    thread_func, (void *)0))
+		  return 0;
+		if (pthread_join (thread, &thread_retval))
+		  return 0;
+		return (a_in_other_thread == a_in_main_thread);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_have_tls=yes
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+	  CFLAGS="$chktls_save_CFLAGS"
+	fi
+      fi
+else
+  gcc_cv_have_tls=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_have_tls" >&5
+$as_echo "$gcc_cv_have_tls" >&6; }
+  if test "$enable_tls $gcc_cv_have_tls" = "yes yes"; then
+    
+$as_echo "@%:@define HAVE_TLS 1" >>confdefs.h
+
+  fi
+    ;;
+  *-netbsd* | *-openbsd*)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+     
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    $as_echo "@%:@define HAVE_FINITEF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINFF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNANF 1" >>confdefs.h
+
+    if test x"long_double_math_on_this_cpu" = x"yes"; then
+      $as_echo "@%:@define HAVE_FINITEL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISINFL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISNANL 1" >>confdefs.h
+
+    fi
+    for ac_func in aligned_alloc posix_memalign memalign _aligned_malloc
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in timespec_get
+do :
+  ac_fn_c_check_func "$LINENO" "timespec_get" "ac_cv_func_timespec_get"
+if test "x$ac_cv_func_timespec_get" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TIMESPEC_GET 1
+_ACEOF
+ 
+fi
+done
+
+    for ac_func in sockatmark
+do :
+  ac_fn_c_check_func "$LINENO" "sockatmark" "ac_cv_func_sockatmark"
+if test "x$ac_cv_func_sockatmark" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SOCKATMARK 1
+_ACEOF
+ 
+fi
+done
+
+    ;;
+  *-qnx6.1* | *-qnx6.2*)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+     
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10L 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHL 1" >>confdefs.h
+
+    ;;
+  *-rtems*)
+    
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  
+
+    
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+  
+  
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+    
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+    
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+	
+int
+main ()
+{
+ two();  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+  
+  
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    ;;
+  *-tpf)
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+    SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS'
+    
+    $as_echo "@%:@define HAVE_FINITE 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FINITEF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISINFF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNAN 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ISNANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINCOS 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINCOSF 1" >>confdefs.h
+
+    if test x"long_double_math_on_this_cpu" = x"yes"; then
+      $as_echo "@%:@define HAVE_FINITEL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_HYPOTL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISINFL 1" >>confdefs.h
+
+      $as_echo "@%:@define HAVE_ISNANL 1" >>confdefs.h
+
+    fi
+    ;;
+  *-*vms*)
+    # Check for available headers.
+    # Don't call GLIBCXX_CHECK_LINKER_FEATURES, VMS doesn't have a GNU ld
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+    
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNAN 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITE 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITE 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__QFPCLASS 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOT 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10F 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEF 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+    
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0); 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl 
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+  
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISNANL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ISINFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__ATAN2L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__EXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FABSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FMODL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FREXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__HYPOTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LDEXPL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOGL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__LOG10L 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__MODFL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__POWL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SQRTL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__SINCOSL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+  
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+  else
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+		     
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE__FINITEL 1
+_ACEOF
+ 
+fi
+done
+
+    fi
+  fi
+  
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_QUICK_EXIT 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOLD 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_STRTOF 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+  
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    ;;
+  *-vxworks*)
+    $as_echo "@%:@define HAVE_ACOSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_CEILF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FLOORF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_HYPOT 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10F 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANF 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHF 1" >>confdefs.h
+
+
+    
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for acosl declaration" >&5
+$as_echo_n "checking for acosl declaration... " >&6; }
+if ${glibcxx_cv_func_acosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef acosl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))acosl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_acosl_use=yes
+
+else
+  glibcxx_cv_func_acosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_acosl_use" >&5
+$as_echo "$glibcxx_cv_func_acosl_use" >&6; }
+  if test "x$glibcxx_cv_func_acosl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ACOSL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for asinl declaration" >&5
+$as_echo_n "checking for asinl declaration... " >&6; }
+if ${glibcxx_cv_func_asinl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef asinl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))asinl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_asinl_use=yes
+
+else
+  glibcxx_cv_func_asinl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_asinl_use" >&5
+$as_echo "$glibcxx_cv_func_asinl_use" >&6; }
+  if test "x$glibcxx_cv_func_asinl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ASINL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef atan2l
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))atan2l;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+  if test "x$glibcxx_cv_func_atan2l_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATAN2L 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atanl declaration" >&5
+$as_echo_n "checking for atanl declaration... " >&6; }
+if ${glibcxx_cv_func_atanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef atanl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))atanl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atanl_use=yes
+
+else
+  glibcxx_cv_func_atanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atanl_use" >&5
+$as_echo "$glibcxx_cv_func_atanl_use" >&6; }
+  if test "x$glibcxx_cv_func_atanl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_ATANL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ceill declaration" >&5
+$as_echo_n "checking for ceill declaration... " >&6; }
+if ${glibcxx_cv_func_ceill_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef ceill
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))ceill;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ceill_use=yes
+
+else
+  glibcxx_cv_func_ceill_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ceill_use" >&5
+$as_echo "$glibcxx_cv_func_ceill_use" >&6; }
+  if test "x$glibcxx_cv_func_ceill_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_CEILL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cosl declaration" >&5
+$as_echo_n "checking for cosl declaration... " >&6; }
+if ${glibcxx_cv_func_cosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef cosl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))cosl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_cosl_use=yes
+
+else
+  glibcxx_cv_func_cosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_cosl_use" >&5
+$as_echo "$glibcxx_cv_func_cosl_use" >&6; }
+  if test "x$glibcxx_cv_func_cosl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_COSL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for coshl declaration" >&5
+$as_echo_n "checking for coshl declaration... " >&6; }
+if ${glibcxx_cv_func_coshl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef coshl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))coshl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_coshl_use=yes
+
+else
+  glibcxx_cv_func_coshl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_coshl_use" >&5
+$as_echo "$glibcxx_cv_func_coshl_use" >&6; }
+  if test "x$glibcxx_cv_func_coshl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_COSHL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef expl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))expl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+  if test "x$glibcxx_cv_func_expl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_EXPL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef fabsl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))fabsl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+  if test "x$glibcxx_cv_func_fabsl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FABSL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for floorl declaration" >&5
+$as_echo_n "checking for floorl declaration... " >&6; }
+if ${glibcxx_cv_func_floorl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef floorl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))floorl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_floorl_use=yes
+
+else
+  glibcxx_cv_func_floorl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_floorl_use" >&5
+$as_echo "$glibcxx_cv_func_floorl_use" >&6; }
+  if test "x$glibcxx_cv_func_floorl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FLOORL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef fmodl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))fmodl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+  if test "x$glibcxx_cv_func_fmodl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FMODL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef frexpl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))frexpl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+  if test "x$glibcxx_cv_func_frexpl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef ldexpl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))ldexpl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+  if test "x$glibcxx_cv_func_ldexpl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef log10l
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))log10l;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+  if test "x$glibcxx_cv_func_log10l_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOG10L 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef logl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))logl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+  if test "x$glibcxx_cv_func_logl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LOGL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef modfl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))modfl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+  if test "x$glibcxx_cv_func_modfl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef powl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))powl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+  if test "x$glibcxx_cv_func_powl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_POWL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sinl declaration" >&5
+$as_echo_n "checking for sinl declaration... " >&6; }
+if ${glibcxx_cv_func_sinl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef sinl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))sinl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sinl_use=yes
+
+else
+  glibcxx_cv_func_sinl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sinl_use" >&5
+$as_echo "$glibcxx_cv_func_sinl_use" >&6; }
+  if test "x$glibcxx_cv_func_sinl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sinhl declaration" >&5
+$as_echo_n "checking for sinhl declaration... " >&6; }
+if ${glibcxx_cv_func_sinhl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef sinhl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))sinhl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sinhl_use=yes
+
+else
+  glibcxx_cv_func_sinhl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sinhl_use" >&5
+$as_echo "$glibcxx_cv_func_sinhl_use" >&6; }
+  if test "x$glibcxx_cv_func_sinhl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SINHL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef sqrtl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))sqrtl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+  if test "x$glibcxx_cv_func_sqrtl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SQRTL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tanl declaration" >&5
+$as_echo_n "checking for tanl declaration... " >&6; }
+if ${glibcxx_cv_func_tanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef tanl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))tanl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_tanl_use=yes
+
+else
+  glibcxx_cv_func_tanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_tanl_use" >&5
+$as_echo "$glibcxx_cv_func_tanl_use" >&6; }
+  if test "x$glibcxx_cv_func_tanl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TANL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tanhl declaration" >&5
+$as_echo_n "checking for tanhl declaration... " >&6; }
+if ${glibcxx_cv_func_tanhl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef tanhl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))tanhl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_tanhl_use=yes
+
+else
+  glibcxx_cv_func_tanhl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_tanhl_use" >&5
+$as_echo "$glibcxx_cv_func_tanhl_use" >&6; }
+  if test "x$glibcxx_cv_func_tanhl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_TANHL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef hypotl
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))hypotl;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+  if test "x$glibcxx_cv_func_hypotl_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTL 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef ldexpf
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))ldexpf;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+  if test "x$glibcxx_cv_func_ldexpf_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LDEXPF 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef modff
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))modff;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+  if test "x$glibcxx_cv_func_modff_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_MODFF 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef hypotf
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))hypotf;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+  if test "x$glibcxx_cv_func_hypotf_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_HYPOTF 1
+_ACEOF
+
+  fi
+
+  
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <math.h>
+#ifdef HAVE_IEEEFP_H
+# include <ieeefp.h>
+#endif
+#undef frexpf
+
+int
+main ()
+{
+
+  void (*f)(void) = (void (*)(void))frexpf;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+  if test "x$glibcxx_cv_func_frexpf_use" = xyes; then
+    cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_FREXPF 1
+_ACEOF
+
+  fi
+
+  
+
+    ;;
+  *)
+    as_fn_error $? "No support for this host/target combination." "$LINENO" 5
+   ;;
+esac
+
+  fi
+
+  # At some point, we should differentiate between architectures
+  # like x86, which have long double versions, and alpha/powerpc/etc.,
+  # which don't. For the time being, punt.
+  if test x"long_double_math_on_this_cpu" = x"yes"; then
+    $as_echo "@%:@define HAVE_ACOSL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ASINL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATAN2L 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_ATANL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_CEILL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_COSHL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_EXPL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FABSL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FLOORL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FMODL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_FREXPL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LDEXPL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOG10L 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_LOGL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_MODFL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_POWL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINCOSL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SINHL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_SQRTL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANL 1" >>confdefs.h
+
+    $as_echo "@%:@define HAVE_TANHL 1" >>confdefs.h
+
+  fi
+fi
+
+# Check for _Unwind_GetIPInfo.
+
+  
+@%:@ Check whether --with-system-libunwind was given.
+if test "${with_system_libunwind+set}" = set; then :
+  withval=$with_system_libunwind; 
+fi
+
+  # If system-libunwind was not specifically set, pick a default setting.
+  if test x$with_system_libunwind = x; then
+    case ${target} in
+      ia64-*-hpux*) with_system_libunwind=yes ;;
+      *) with_system_libunwind=no ;;
+    esac
+  fi
+  # Based on system-libunwind and target, do we have ipinfo?
+  if  test x$with_system_libunwind = xyes; then
+    case ${target} in
+      ia64-*-*) have_unwind_getipinfo=no ;;
+      *) have_unwind_getipinfo=yes ;;
+    esac
+  else
+    # Darwin before version 9 does not have _Unwind_GetIPInfo.
+    
+    case ${target} in
+      *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;;
+      *) have_unwind_getipinfo=yes ;;
+    esac
+    
+  fi
+
+  if test x$have_unwind_getipinfo = xyes; then
+    
+$as_echo "@%:@define HAVE_GETIPINFO 1" >>confdefs.h
+
+  fi
+
+
+ @%:@ Check whether --enable-linux-futex was given.
+if test "${enable_linux_futex+set}" = set; then :
+  enableval=$enable_linux_futex; 
+      case "$enableval" in
+       yes|no|default) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable linux-futex" "$LINENO" 5 ;;
+                          esac
+     
+else
+  enable_linux_futex=default
+fi
+
+
+case "$target" in
+  *-linux* | *-uclinux*)
+    case "$enable_linux_futex" in
+      default)
+	# If headers don't have gettid/futex syscalls definition, then
+	# default to no, otherwise there will be compile time failures.
+	# Otherwise, default to yes.  If we don't detect we are
+	# compiled/linked against NPTL and not cross-compiling, check
+	# if programs are run by default against NPTL and if not, issue
+	# a warning.
+	enable_linux_futex=no
+	if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/syscall.h>
+	   #include <unistd.h>
+	   int lk;
+int
+main ()
+{
+syscall (SYS_gettid); syscall (SYS_futex, &lk, 0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  save_LIBS="$LIBS"
+	   LIBS="-lpthread $LIBS"
+	   if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef _GNU_SOURCE
+	     #define _GNU_SOURCE 1
+	     #endif
+	     #include <pthread.h>
+	     pthread_t th; void *status;
+int
+main ()
+{
+pthread_tryjoin_np (th, &status);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  enable_linux_futex=yes
+else
+  if test x$cross_compiling = xno; then
+	       if getconf GNU_LIBPTHREAD_VERSION 2>/dev/null \
+		  | LC_ALL=C grep -i NPTL > /dev/null 2>/dev/null; then :; else
+		 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: The kernel might not support futex or gettid syscalls.
+If so, please configure with --disable-linux-futex" >&5
+$as_echo "$as_me: WARNING: The kernel might not support futex or gettid syscalls.
+If so, please configure with --disable-linux-futex" >&2;}
+	       fi
+	     fi
+	     enable_linux_futex=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	   LIBS="$save_LIBS"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	;;
+      yes)
+	if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/syscall.h>
+	   #include <unistd.h>
+	   int lk;
+int
+main ()
+{
+syscall (SYS_gettid); syscall (SYS_futex, &lk, 0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  
+else
+  as_fn_error $? "SYS_gettid and SYS_futex required for --enable-linux-futex" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	;;
+    esac
+    ;;
+  *)
+    enable_linux_futex=no
+    ;;
+esac
+if test x$enable_linux_futex = xyes; then
+  
+$as_echo "@%:@define HAVE_LINUX_FUTEX 1" >>confdefs.h
+
+fi
+
+
+if test "$is_hosted" = yes; then
+# TODO: remove this and change src/c++11/compatibility-atomic-c++0x.cc to
+# use <stdint.h> instead of <gstdint.h>.
+
+
+inttype_headers=`echo inttypes.h sys/inttypes.h  | sed -e 's/,/ /g'`
+
+acx_cv_header_stdint=stddef.h
+acx_cv_header_stdint_kind="(already complete)"
+for i in stdint.h $inttype_headers; do
+  unset ac_cv_type_uintptr_t
+  unset ac_cv_type_uintmax_t
+  unset ac_cv_type_int_least32_t
+  unset ac_cv_type_int_fast32_t
+  unset ac_cv_type_uint64_t
+  $as_echo_n "looking for a compliant stdint.h in $i, " >&6
+  ac_fn_c_check_type "$LINENO" "uintmax_t" "ac_cv_type_uintmax_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uintmax_t" = xyes; then :
+  acx_cv_header_stdint=$i
+else
+  continue
+fi
+
+  ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uintptr_t" = xyes; then :
+  
+else
+  acx_cv_header_stdint_kind="(mostly complete)"
+fi
+
+  ac_fn_c_check_type "$LINENO" "int_least32_t" "ac_cv_type_int_least32_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_int_least32_t" = xyes; then :
+  
+else
+  acx_cv_header_stdint_kind="(mostly complete)"
+fi
+
+  ac_fn_c_check_type "$LINENO" "int_fast32_t" "ac_cv_type_int_fast32_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_int_fast32_t" = xyes; then :
+  
+else
+  acx_cv_header_stdint_kind="(mostly complete)"
+fi
+
+  ac_fn_c_check_type "$LINENO" "uint64_t" "ac_cv_type_uint64_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uint64_t" = xyes; then :
+  
+else
+  acx_cv_header_stdint_kind="(lacks uint64_t)"
+fi
+
+  break
+done
+if test "$acx_cv_header_stdint" = stddef.h; then
+  acx_cv_header_stdint_kind="(lacks uintmax_t)"
+  for i in stdint.h $inttype_headers; do
+    unset ac_cv_type_uintptr_t
+    unset ac_cv_type_uint32_t
+    unset ac_cv_type_uint64_t
+    $as_echo_n "looking for an incomplete stdint.h in $i, " >&6
+    ac_fn_c_check_type "$LINENO" "uint32_t" "ac_cv_type_uint32_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uint32_t" = xyes; then :
+  acx_cv_header_stdint=$i
+else
+  continue
+fi
+
+    ac_fn_c_check_type "$LINENO" "uint64_t" "ac_cv_type_uint64_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uint64_t" = xyes; then :
+  
+fi
+
+    ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_uintptr_t" = xyes; then :
+  
+fi
+
+    break
+  done
+fi
+if test "$acx_cv_header_stdint" = stddef.h; then
+  acx_cv_header_stdint_kind="(u_intXX_t style)"
+  for i in sys/types.h $inttype_headers; do
+    unset ac_cv_type_u_int32_t
+    unset ac_cv_type_u_int64_t
+    $as_echo_n "looking for u_intXX_t types in $i, " >&6
+    ac_fn_c_check_type "$LINENO" "u_int32_t" "ac_cv_type_u_int32_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_u_int32_t" = xyes; then :
+  acx_cv_header_stdint=$i
+else
+  continue
+fi
+
+    ac_fn_c_check_type "$LINENO" "u_int64_t" "ac_cv_type_u_int64_t" "#include <sys/types.h>
+#include <$i>
+"
+if test "x$ac_cv_type_u_int64_t" = xyes; then :
+  
+fi
+
+    break
+  done
+fi
+if test "$acx_cv_header_stdint" = stddef.h; then
+  acx_cv_header_stdint_kind="(using manual detection)"
+fi
+
+test -z "$ac_cv_type_uintptr_t" && ac_cv_type_uintptr_t=no
+test -z "$ac_cv_type_uint64_t" && ac_cv_type_uint64_t=no
+test -z "$ac_cv_type_u_int64_t" && ac_cv_type_u_int64_t=no
+test -z "$ac_cv_type_int_least32_t" && ac_cv_type_int_least32_t=no
+test -z "$ac_cv_type_int_fast32_t" && ac_cv_type_int_fast32_t=no
+
+# ----------------- Summarize what we found so far
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking what to include in include/gstdint.h" >&5
+$as_echo_n "checking what to include in include/gstdint.h... " >&6; }
+
+case `$as_basename -- include/gstdint.h ||
+$as_expr X/include/gstdint.h : '.*/\([^/][^/]*\)/*$' \| \
+	 Xinclude/gstdint.h : 'X\(//\)$' \| \
+	 Xinclude/gstdint.h : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/include/gstdint.h |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'` in
+  stdint.h) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: are you sure you want it there?" >&5
+$as_echo "$as_me: WARNING: are you sure you want it there?" >&2;} ;;
+  inttypes.h) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: are you sure you want it there?" >&5
+$as_echo "$as_me: WARNING: are you sure you want it there?" >&2;} ;;
+  *) ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_header_stdint $acx_cv_header_stdint_kind" >&5
+$as_echo "$acx_cv_header_stdint $acx_cv_header_stdint_kind" >&6; }
+
+# ----------------- done included file, check C basic types --------
+
+# Lacking an uintptr_t?  Test size of void *
+case "$acx_cv_header_stdint:$ac_cv_type_uintptr_t" in
+  stddef.h:* | *:no) # The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
+$as_echo_n "checking size of void *... " >&6; }
+if ${ac_cv_sizeof_void_p+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :
+  
+else
+  if test "$ac_cv_type_void_p" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (void *)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_void_p=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
+$as_echo "$ac_cv_sizeof_void_p" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+@%:@define SIZEOF_VOID_P $ac_cv_sizeof_void_p
+_ACEOF
+
+ ;;
+esac
+
+# Lacking an uint64_t?  Test size of long
+case "$acx_cv_header_stdint:$ac_cv_type_uint64_t:$ac_cv_type_u_int64_t" in
+  stddef.h:*:* | *:no:no) # The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
+$as_echo_n "checking size of long... " >&6; }
+if ${ac_cv_sizeof_long+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :
+  
+else
+  if test "$ac_cv_type_long" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (long)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_long=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
+$as_echo "$ac_cv_sizeof_long" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+@%:@define SIZEOF_LONG $ac_cv_sizeof_long
+_ACEOF
+
+ ;;
+esac
+
+if test $acx_cv_header_stdint = stddef.h; then
+  # Lacking a good header?  Test size of everything and deduce all types.
+  # The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
+$as_echo_n "checking size of int... " >&6; }
+if ${ac_cv_sizeof_int+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :
+  
+else
+  if test "$ac_cv_type_int" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (int)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_int=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
+$as_echo "$ac_cv_sizeof_int" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+@%:@define SIZEOF_INT $ac_cv_sizeof_int
+_ACEOF
+
+
+  # The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of short" >&5
+$as_echo_n "checking size of short... " >&6; }
+if ${ac_cv_sizeof_short+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :
+  
+else
+  if test "$ac_cv_type_short" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (short)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_short=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5
+$as_echo "$ac_cv_sizeof_short" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+@%:@define SIZEOF_SHORT $ac_cv_sizeof_short
+_ACEOF
+
+
+  # The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of char" >&5
+$as_echo_n "checking size of char... " >&6; }
+if ${ac_cv_sizeof_char+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (char))" "ac_cv_sizeof_char"        "$ac_includes_default"; then :
+  
+else
+  if test "$ac_cv_type_char" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (char)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_char=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_char" >&5
+$as_echo "$ac_cv_sizeof_char" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+@%:@define SIZEOF_CHAR $ac_cv_sizeof_char
+_ACEOF
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int8_t" >&5
+$as_echo_n "checking for type equivalent to int8_t... " >&6; }
+  case "$ac_cv_sizeof_char" in
+    1) acx_cv_type_int8_t=char ;;
+    *) as_fn_error $? "no 8-bit type, please report a bug" "$LINENO" 5
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int8_t" >&5
+$as_echo "$acx_cv_type_int8_t" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int16_t" >&5
+$as_echo_n "checking for type equivalent to int16_t... " >&6; }
+  case "$ac_cv_sizeof_int:$ac_cv_sizeof_short" in
+    2:*) acx_cv_type_int16_t=int ;;
+    *:2) acx_cv_type_int16_t=short ;;
+    *) as_fn_error $? "no 16-bit type, please report a bug" "$LINENO" 5
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int16_t" >&5
+$as_echo "$acx_cv_type_int16_t" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int32_t" >&5
+$as_echo_n "checking for type equivalent to int32_t... " >&6; }
+  case "$ac_cv_sizeof_int:$ac_cv_sizeof_long" in
+    4:*) acx_cv_type_int32_t=int ;;
+    *:4) acx_cv_type_int32_t=long ;;
+    *) as_fn_error $? "no 32-bit type, please report a bug" "$LINENO" 5
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int32_t" >&5
+$as_echo "$acx_cv_type_int32_t" >&6; }
+fi
+
+# These tests are here to make the output prettier
+
+if test "$ac_cv_type_uint64_t" != yes && test "$ac_cv_type_u_int64_t" != yes; then
+  case "$ac_cv_sizeof_long" in
+    8) acx_cv_type_int64_t=long ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int64_t" >&5
+$as_echo_n "checking for type equivalent to int64_t... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${acx_cv_type_int64_t-'using preprocessor symbols'}" >&5
+$as_echo "${acx_cv_type_int64_t-'using preprocessor symbols'}" >&6; }
+fi
+
+# Now we can use the above types
+
+if test "$ac_cv_type_uintptr_t" != yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to intptr_t" >&5
+$as_echo_n "checking for type equivalent to intptr_t... " >&6; }
+  case $ac_cv_sizeof_void_p in
+    2) acx_cv_type_intptr_t=int16_t ;;
+    4) acx_cv_type_intptr_t=int32_t ;;
+    8) acx_cv_type_intptr_t=int64_t ;;
+    *) as_fn_error $? "no equivalent for intptr_t, please report a bug" "$LINENO" 5
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_intptr_t" >&5
+$as_echo "$acx_cv_type_intptr_t" >&6; }
+fi
+
+# ----------------- done all checks, emit header -------------
+ac_config_commands="$ac_config_commands include/gstdint.h"
+
+
+
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU c++filt" >&5
+$as_echo_n "checking for GNU c++filt... " >&6; }
+if ${ac_cv_path_CXXFILT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$CXXFILT"; then
+  ac_path_CXXFILT_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in c++filt gc++filt; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_CXXFILT="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_CXXFILT" || continue
+# Check for GNU $ac_path_CXXFILT
+case `"$ac_path_CXXFILT" --version 2>&1` in
+*GNU*)
+  ac_cv_path_CXXFILT=$ac_path_CXXFILT && ac_path_CXXFILT_found=:;;
+esac
+
+      $ac_path_CXXFILT_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_CXXFILT"; then
+    :
+  fi
+else
+  ac_cv_path_CXXFILT=$CXXFILT
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_CXXFILT" >&5
+$as_echo "$ac_cv_path_CXXFILT" >&6; }
+  CXXFILT=$ac_cv_path_CXXFILT
+
+
+
+ @%:@ Check whether --enable-symvers was given.
+if test "${enable_symvers+set}" = set; then :
+  enableval=$enable_symvers; 
+      case "$enableval" in
+       yes|no|gnu|gnu-versioned-namespace|darwin|darwin-export|sun) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable symvers" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_symvers=yes
+fi
+
+
+
+# If we never went through the GLIBCXX_CHECK_LINKER_FEATURES macro, then we
+# don't know enough about $LD to do tricks...
+
+# Sun style symbol versions needs GNU c++filt for make_sunver.pl to work
+# with extern "C++" in version scripts.
+
+
+# Turn a 'yes' into a suitable default.
+if test x$enable_symvers = xyes ; then
+  if test $enable_shared = no || test "x$LD" = x || test x$gcc_no_link = xyes; then
+    enable_symvers=no
+  else
+    if test $with_gnu_ld = yes ; then
+      case ${target_os} in
+	hpux*)
+	  enable_symvers=no ;;
+	*)
+	  enable_symvers=gnu ;;
+      esac
+    else
+      case ${target_os} in
+	darwin*)
+	  enable_symvers=darwin ;;
+	# Sun symbol versioning exists since Solaris 2.5.
+	solaris2.[5-9]* | solaris2.1[0-9]*)
+	  # make_sunver.pl needs GNU c++filt to support extern "C++" in
+	  # version scripts, so disable symbol versioning if none can be
+	  # found.
+	  if test -z "$ac_cv_path_CXXFILT"; then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested Sun symbol versioning, but" >&5
+$as_echo "$as_me: WARNING: === You have requested Sun symbol versioning, but" >&2;}
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === no GNU c++filt could  be found." >&5
+$as_echo "$as_me: WARNING: === no GNU c++filt could  be found." >&2;}
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+	    enable_symvers=no
+	  else
+	    enable_symvers=sun
+	  fi
+	  ;;
+	*)
+	  enable_symvers=no ;;
+      esac
+    fi
+  fi
+fi
+
+# Check to see if 'darwin' or 'darwin-export' can win.
+if test x$enable_symvers = xdarwin-export ; then
+    enable_symvers=darwin
+fi
+
+# Check if 'sun' was requested on non-Solaris 2 platforms.
+if test x$enable_symvers = xsun ; then
+  case ${target_os} in
+    solaris2*)
+      # All fine.
+      ;;
+    *)
+      # Unlikely to work.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested Sun symbol versioning, but" >&5
+$as_echo "$as_me: WARNING: === You have requested Sun symbol versioning, but" >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === you are not targetting Solaris 2." >&5
+$as_echo "$as_me: WARNING: === you are not targetting Solaris 2." >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+      enable_symvers=no
+      ;;
+  esac
+fi
+
+# Check to see if 'gnu' can win.
+if test $enable_symvers = gnu ||
+  test $enable_symvers = gnu-versioned-namespace ||
+  test $enable_symvers = sun; then
+  # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shared libgcc" >&5
+$as_echo_n "checking for shared libgcc... " >&6; }
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=' -lgcc_s'
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  glibcxx_shared_libgcc=yes
+else
+  glibcxx_shared_libgcc=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  CFLAGS="$ac_save_CFLAGS"
+  if test $glibcxx_shared_libgcc = no; then
+    cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+    glibcxx_libgcc_s_suffix=`${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
+			     -shared -shared-libgcc -o conftest.so \
+			     conftest.c -v 2>&1 >/dev/null \
+			     | sed -n 's/^.* -lgcc_s\([^ ]*\) .*$/\1/p'`
+    rm -f conftest.c conftest.so
+    if test x${glibcxx_libgcc_s_suffix+set} = xset; then
+      CFLAGS=" -lgcc_s$glibcxx_libgcc_s_suffix"
+      if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  glibcxx_shared_libgcc=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CFLAGS="$ac_save_CFLAGS"
+    fi
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_shared_libgcc" >&5
+$as_echo "$glibcxx_shared_libgcc" >&6; }
+
+  # For GNU ld, we need at least this version.  The format is described in
+  # GLIBCXX_CHECK_LINKER_FEATURES above.
+  glibcxx_min_gnu_ld_version=21400
+
+  # If no shared libgcc, can't win.
+  if test $glibcxx_shared_libgcc != yes; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested GNU symbol versioning, but" >&5
+$as_echo "$as_me: WARNING: === You have requested GNU symbol versioning, but" >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === you are not building a shared libgcc_s." >&5
+$as_echo "$as_me: WARNING: === you are not building a shared libgcc_s." >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+      enable_symvers=no
+  elif test $with_gnu_ld != yes && test $enable_symvers = sun; then
+    : All interesting versions of Sun ld support sun style symbol versioning.
+  elif test $with_gnu_ld != yes ; then
+    # just fail for now
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested GNU symbol versioning, but" >&5
+$as_echo "$as_me: WARNING: === You have requested GNU symbol versioning, but" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === you are not using the GNU linker." >&5
+$as_echo "$as_me: WARNING: === you are not using the GNU linker." >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+    enable_symvers=no
+  elif test $glibcxx_ld_is_gold = yes ; then
+    : All versions of gold support symbol versioning.
+  elif test $glibcxx_ld_is_mold = yes ; then
+    : All versions of mold support symbol versioning.
+  elif test $glibcxx_gnu_ld_version -lt $glibcxx_min_gnu_ld_version ; then
+    # The right tools, the right setup, but too old.  Fallbacks?
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Linker version $glibcxx_gnu_ld_version is too old for" >&5
+$as_echo "$as_me: WARNING: === Linker version $glibcxx_gnu_ld_version is too old for" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === full symbol versioning support in this release of GCC." >&5
+$as_echo "$as_me: WARNING: === full symbol versioning support in this release of GCC." >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You would need to upgrade your binutils to version" >&5
+$as_echo "$as_me: WARNING: === You would need to upgrade your binutils to version" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === $glibcxx_min_gnu_ld_version or later and rebuild GCC." >&5
+$as_echo "$as_me: WARNING: === $glibcxx_min_gnu_ld_version or later and rebuild GCC." >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+    enable_symvers=no
+  fi
+fi
+
+# For libtool versioning info, format is CURRENT:REVISION:AGE
+libtool_VERSION=6:30:0
+
+# Everything parsed; figure out what files and settings to use.
+case $enable_symvers in
+  no)
+    SYMVER_FILE=config/abi/pre/none.ver
+    ;;
+  gnu)
+    SYMVER_FILE=config/abi/pre/gnu.ver
+    
+$as_echo "@%:@define _GLIBCXX_SYMVER_GNU 1" >>confdefs.h
+
+    ;;
+  gnu-versioned-namespace)
+    libtool_VERSION=8:0:0
+    SYMVER_FILE=config/abi/pre/gnu-versioned-namespace.ver
+    
+$as_echo "@%:@define _GLIBCXX_SYMVER_GNU_NAMESPACE 1" >>confdefs.h
+
+    ;;
+  darwin)
+    SYMVER_FILE=config/abi/pre/gnu.ver
+    
+$as_echo "@%:@define _GLIBCXX_SYMVER_DARWIN 1" >>confdefs.h
+
+    ;;
+  sun)
+    SYMVER_FILE=config/abi/pre/gnu.ver
+    
+$as_echo "@%:@define _GLIBCXX_SYMVER_SUN 1" >>confdefs.h
+
+    ;;
+esac
+
+if test x$enable_symvers != xno ; then
+  
+$as_echo "@%:@define _GLIBCXX_SYMVER 1" >>confdefs.h
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports .symver directive" >&5
+$as_echo_n "checking whether the target supports .symver directive... " >&6; }
+if ${glibcxx_cv_have_as_symver_directive+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+void foo (void); __asm (".symver foo, bar@SYMVER");
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_have_as_symver_directive=yes
+else
+  glibcxx_cv_have_as_symver_directive=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_have_as_symver_directive" >&5
+$as_echo "$glibcxx_cv_have_as_symver_directive" >&6; }
+if test $glibcxx_cv_have_as_symver_directive = yes; then
+  
+$as_echo "@%:@define HAVE_AS_SYMVER_DIRECTIVE 1" >>confdefs.h
+
+fi
+
+
+
+  
+  
+  
+  
+  
+{ $as_echo "$as_me:${as_lineno-$LINENO}: versioning on shared library symbols is $enable_symvers" >&5
+$as_echo "$as_me: versioning on shared library symbols is $enable_symvers" >&6;}
+
+if test $enable_symvers != no ; then
+   case ${target_os} in
+     # The Solaris 2 runtime linker doesn't support the GNU extension of
+     # binding the same symbol to different versions
+     solaris2*)
+       ;;
+     # Other platforms with GNU symbol versioning (GNU/Linux, more?) do.
+     *)
+       
+$as_echo "@%:@define HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT 1" >>confdefs.h
+
+       ;;
+    esac
+fi
+
+# Now, set up compatibility support, if any.
+# In addition, need this to deal with std::size_t mangling in
+# src/compatibility.cc.  In a perfect world, could use
+# typeid(std::size_t).name()[0] to do direct substitution.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for size_t as unsigned int" >&5
+$as_echo_n "checking for size_t as unsigned int... " >&6; }
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="-Werror"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+__SIZE_TYPE__* stp; unsigned int* uip; stp = uip;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_size_t_is_i=yes
+else
+  glibcxx_size_t_is_i=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS=$ac_save_CFLAGS
+if test "$glibcxx_size_t_is_i" = yes; then
+  
+$as_echo "@%:@define _GLIBCXX_SIZE_T_IS_UINT 1" >>confdefs.h
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_size_t_is_i" >&5
+$as_echo "$glibcxx_size_t_is_i" >&6; }
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ptrdiff_t as int" >&5
+$as_echo_n "checking for ptrdiff_t as int... " >&6; }
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="-Werror"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+__PTRDIFF_TYPE__* ptp; int* ip; ptp = ip;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_ptrdiff_t_is_i=yes
+else
+  glibcxx_ptrdiff_t_is_i=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS=$ac_save_CFLAGS
+if test "$glibcxx_ptrdiff_t_is_i" = yes; then
+  
+$as_echo "@%:@define _GLIBCXX_PTRDIFF_T_IS_INT 1" >>confdefs.h
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_ptrdiff_t_is_i" >&5
+$as_echo "$glibcxx_ptrdiff_t_is_i" >&6; }
+
+
+
+
+ @%:@ Check whether --enable-libstdcxx-visibility was given.
+if test "${enable_libstdcxx_visibility+set}" = set; then :
+  enableval=$enable_libstdcxx_visibility; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-visibility must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_libstdcxx_visibility=yes
+fi
+
+
+
+if test x$enable_libstdcxx_visibility = xyes ; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports hidden visibility" >&5
+$as_echo_n "checking whether the target supports hidden visibility... " >&6; }
+if ${glibcxx_cv_have_attribute_visibility+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -Werror"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+void __attribute__((visibility("hidden"))) foo(void) { }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_have_attribute_visibility=yes
+else
+  glibcxx_cv_have_attribute_visibility=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS="$save_CFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_have_attribute_visibility" >&5
+$as_echo "$glibcxx_cv_have_attribute_visibility" >&6; }
+  if test $glibcxx_cv_have_attribute_visibility = no; then
+    enable_libstdcxx_visibility=no
+  fi
+fi
+
+  
+{ $as_echo "$as_me:${as_lineno-$LINENO}: visibility supported: $enable_libstdcxx_visibility" >&5
+$as_echo "$as_me: visibility supported: $enable_libstdcxx_visibility" >&6;}
+
+
+
+   @%:@ Check whether --enable-libstdcxx-dual-abi was given.
+if test "${enable_libstdcxx_dual_abi+set}" = set; then :
+  enableval=$enable_libstdcxx_dual_abi; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-dual-abi must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_libstdcxx_dual_abi=yes
+fi
+
+
+  if test x$enable_symvers = xgnu-versioned-namespace; then
+    # gnu-versioned-namespace is incompatible with the dual ABI.
+    enable_libstdcxx_dual_abi="no"
+  fi
+  if test x"$enable_libstdcxx_dual_abi" != xyes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: dual ABI is disabled" >&5
+$as_echo "$as_me: dual ABI is disabled" >&6;}
+    default_libstdcxx_abi="gcc4-compatible"
+  fi
+    
+
+
+  if test x$enable_libstdcxx_dual_abi = xyes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for default std::string ABI to use" >&5
+$as_echo_n "checking for default std::string ABI to use... " >&6; }
+  
+@%:@ Check whether --with-default-libstdcxx-abi was given.
+if test "${with_default_libstdcxx_abi+set}" = set; then :
+  withval=$with_default_libstdcxx_abi; case "$withval" in
+      gcc4-compatible)  default_libstdcxx_abi="gcc4-compatible" ;;
+      new|cxx11)  default_libstdcxx_abi="new" ;;
+      c++*|gnu++*) as_fn_error $? "Supported arguments for --with-default-libstdcxx-abi have changed, use \"new\" or \"gcc4-compatible\"" "$LINENO" 5 ;;
+      *) as_fn_error $? "Invalid argument for --with-default-libstdcxx-abi" "$LINENO" 5 ;;
+     esac
+     
+else
+  default_libstdcxx_abi="new"
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${default_libstdcxx_abi}" >&5
+$as_echo "${default_libstdcxx_abi}" >&6; }
+  fi
+  if test $default_libstdcxx_abi = "new"; then
+    glibcxx_cxx11_abi=1
+    glibcxx_cxx98_abi=0
+  else
+    glibcxx_cxx11_abi=0
+    glibcxx_cxx98_abi=1
+  fi
+  
+    
+
+
+ac_ldbl_compat=no
+ac_ldbl_alt128_compat=no
+ac_ldbl_ieee128_default=no
+LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64"
+LONG_DOUBLE_128_FLAGS=
+LONG_DOUBLE_ALT128_COMPAT_FLAGS=
+case "$target" in
+  powerpc*-*-linux* | \
+  sparc*-*-linux* | \
+  s390*-*-linux* | \
+  alpha*-*-linux*)
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+#if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__))
+#error no need for long double compatibility
+#endif
+  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_ldbl_compat=yes
+else
+  ac_ldbl_compat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_ldbl_compat" = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_LONG_DOUBLE_COMPAT 1" >>confdefs.h
+
+    port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver"
+    case "$target" in
+      powerpc*-*-linux*)
+	LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute"
+        # Check for IEEE128 support in libm:
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __frexpieee128 in -lm" >&5
+$as_echo_n "checking for __frexpieee128 in -lm... " >&6; }
+if ${ac_cv_lib_m___frexpieee128+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __frexpieee128 ();
+int
+main ()
+{
+return __frexpieee128 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m___frexpieee128=yes
+else
+  ac_cv_lib_m___frexpieee128=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m___frexpieee128" >&5
+$as_echo "$ac_cv_lib_m___frexpieee128" >&6; }
+if test "x$ac_cv_lib_m___frexpieee128" = xyes; then :
+  ac_ldbl_ieee128_in_libc=yes
+else
+  ac_ldbl_ieee128_in_libc=no
+fi
+
+        if test $ac_ldbl_ieee128_in_libc = yes; then
+          # Determine which long double format is the compiler's default:
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+            #ifndef __LONG_DOUBLE_IEEE128__
+            #error compiler defaults to ibm128
+            #endif
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_ldbl_ieee128_default=yes
+else
+  ac_ldbl_ieee128_default=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+          # Library objects should use default long double format.
+          if test "$ac_ldbl_ieee128_default" = yes; then
+            LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
+            # Except for the ones that explicitly use these flags:
+            LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ibmlongdouble -mno-gnu-attribute -Wno-psabi"
+          else
+            LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
+            LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ieeelongdouble -mno-gnu-attribute -Wno-psabi"
+          fi
+          
+$as_echo "@%:@define _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT 1" >>confdefs.h
+
+          port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/os/gnu-linux/ldbl-ieee128-extra.ver"
+          ac_ldbl_alt128_compat=yes
+        else
+          ac_ldbl_alt128_compat=no
+        fi
+	;;
+    esac
+  fi
+esac
+
+
+
+  
+  
+
+# Check if assembler supports disabling hardware capability support.
+
+  test -z "$HWCAP_CFLAGS" && HWCAP_CFLAGS=''
+
+  # Restrict the test to Solaris, other assemblers (e.g. AIX as) have -nH
+  # with a different meaning.
+  case ${target_os} in
+    solaris2*)
+      ac_save_CFLAGS="$CFLAGS"
+      CFLAGS="$CFLAGS -Wa,-nH"
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for as that supports -Wa,-nH" >&5
+$as_echo_n "checking for as that supports -Wa,-nH... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hwcap_flags=yes
+else
+  ac_hwcap_flags=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      if test "$ac_hwcap_flags" = "yes"; then
+	HWCAP_CFLAGS="-Wa,-nH $HWCAP_CFLAGS"
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_hwcap_flags" >&5
+$as_echo "$ac_hwcap_flags" >&6; }
+
+      CFLAGS="$ac_save_CFLAGS"
+      ;;
+  esac
+
+  
+
+
+# Check if assembler supports rdrand opcode.
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for rdrand support in assembler" >&5
+$as_echo_n "checking for rdrand support in assembler... " >&6; }
+if ${ac_cv_x86_rdrand+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  ac_cv_x86_rdrand=no
+  case "$target" in
+    i?86-*-* | \
+    x86_64-*-*)
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+asm("rdrand %eax");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_x86_rdrand=yes
+else
+  ac_cv_x86_rdrand=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  esac
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_x86_rdrand" >&5
+$as_echo "$ac_cv_x86_rdrand" >&6; }
+  if test $ac_cv_x86_rdrand = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_X86_RDRAND 1" >>confdefs.h
+
+  fi
+
+# Check if assembler supports rdseed opcode.
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for rdseed support in assembler" >&5
+$as_echo_n "checking for rdseed support in assembler... " >&6; }
+if ${ac_cv_x86_rdseed+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+  ac_cv_x86_rdseed=no
+  case "$target" in
+    i?86-*-* | \
+    x86_64-*-*)
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+asm("rdseed %eax");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_x86_rdseed=yes
+else
+  ac_cv_x86_rdseed=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  esac
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_x86_rdseed" >&5
+$as_echo "$ac_cv_x86_rdseed" >&6; }
+  if test $ac_cv_x86_rdseed = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_X86_RDSEED 1" >>confdefs.h
+
+  fi
+
+
+# Check for other random number APIs
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getentropy" >&5
+$as_echo_n "checking for getentropy... " >&6; }
+if ${glibcxx_cv_getentropy+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+unsigned i;
+	 ::getentropy(&i, sizeof(i));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_getentropy=yes
+else
+  glibcxx_cv_getentropy=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+unsigned i;
+	 ::getentropy(&i, sizeof(i));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_getentropy=yes
+else
+  glibcxx_cv_getentropy=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_getentropy" >&5
+$as_echo "$glibcxx_cv_getentropy" >&6; }
+
+  if test $glibcxx_cv_getentropy = yes; then
+    
+$as_echo "@%:@define HAVE_GETENTROPY 1" >>confdefs.h
+
+  fi
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for arc4random" >&5
+$as_echo_n "checking for arc4random... " >&6; }
+if ${glibcxx_cv_arc4random+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+unsigned i = ::arc4random();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_arc4random=yes
+else
+  glibcxx_cv_arc4random=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+unsigned i = ::arc4random();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_arc4random=yes
+else
+  glibcxx_cv_arc4random=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_arc4random" >&5
+$as_echo "$glibcxx_cv_arc4random" >&6; }
+
+  if test $glibcxx_cv_arc4random = yes; then
+    
+$as_echo "@%:@define HAVE_ARC4RANDOM 1" >>confdefs.h
+
+  fi
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
+
+  # Do checks for resource limit functions.
+  
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  setrlimit_have_headers=yes
+  for ac_header in unistd.h sys/time.h sys/resource.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+else
+  setrlimit_have_headers=no
+fi
+
+done
+
+  # If don't have the headers, then we can't run the tests now, and we
+  # won't be seeing any of these during testsuite compilation.
+  if test $setrlimit_have_headers = yes; then
+    # Can't do these in a loop, else the resulting syntax is wrong.
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for RLIMIT_DATA" >&5
+$as_echo_n "checking for RLIMIT_DATA... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+     #include <sys/time.h>
+     #include <sys/resource.h>
+    
+int
+main ()
+{
+ int f = RLIMIT_DATA ; 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_mresult=1
+else
+  glibcxx_mresult=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIMIT_DATA $glibcxx_mresult
+_ACEOF
+
+  if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for RLIMIT_RSS" >&5
+$as_echo_n "checking for RLIMIT_RSS... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+     #include <sys/time.h>
+     #include <sys/resource.h>
+    
+int
+main ()
+{
+ int f = RLIMIT_RSS ; 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_mresult=1
+else
+  glibcxx_mresult=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIMIT_RSS $glibcxx_mresult
+_ACEOF
+
+  if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for RLIMIT_VMEM" >&5
+$as_echo_n "checking for RLIMIT_VMEM... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+     #include <sys/time.h>
+     #include <sys/resource.h>
+    
+int
+main ()
+{
+ int f = RLIMIT_VMEM ; 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_mresult=1
+else
+  glibcxx_mresult=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIMIT_VMEM $glibcxx_mresult
+_ACEOF
+
+  if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for RLIMIT_AS" >&5
+$as_echo_n "checking for RLIMIT_AS... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+     #include <sys/time.h>
+     #include <sys/resource.h>
+    
+int
+main ()
+{
+ int f = RLIMIT_AS ; 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_mresult=1
+else
+  glibcxx_mresult=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIMIT_AS $glibcxx_mresult
+_ACEOF
+
+  if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for RLIMIT_FSIZE" >&5
+$as_echo_n "checking for RLIMIT_FSIZE... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+     #include <sys/time.h>
+     #include <sys/resource.h>
+    
+int
+main ()
+{
+ int f = RLIMIT_FSIZE ; 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_mresult=1
+else
+  glibcxx_mresult=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LIMIT_FSIZE $glibcxx_mresult
+_ACEOF
+
+  if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res" >&5
+$as_echo "$res" >&6; }
+
+
+    # Check for rlimit, setrlimit.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for testsuite resource limits support" >&5
+$as_echo_n "checking for testsuite resource limits support... " >&6; }
+if ${glibcxx_cv_setrlimit+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+	 #include <sys/time.h>
+	 #include <sys/resource.h>
+	
+int
+main ()
+{
+struct rlimit r;
+	 setrlimit(0, &r);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_setrlimit=yes
+else
+  glibcxx_cv_setrlimit=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_setrlimit" >&5
+$as_echo "$glibcxx_cv_setrlimit" >&6; }
+
+    if test $glibcxx_cv_setrlimit = yes; then
+      
+$as_echo "@%:@define _GLIBCXX_RES_LIMITS 1" >>confdefs.h
+
+    fi
+  fi
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+  if $GLIBCXX_IS_NATIVE ; then
+    # Look for setenv, so that extended locale tests can be performed.
+    
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for setenv declaration" >&5
+$as_echo_n "checking for setenv declaration... " >&6; }
+  if test x${glibcxx_cv_func_setenv_use+set} != xset; then
+    if ${glibcxx_cv_func_setenv_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+      
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ setenv(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_setenv_use=yes
+else
+  glibcxx_cv_func_setenv_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_setenv_use" >&5
+$as_echo "$glibcxx_cv_func_setenv_use" >&6; }
+  if test x$glibcxx_cv_func_setenv_use = x"yes"; then
+    for ac_func in setenv
+do :
+  ac_fn_c_check_func "$LINENO" "setenv" "ac_cv_func_setenv"
+if test "x$ac_cv_func_setenv" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SETENV 1
+_ACEOF
+ 
+fi
+done
+
+  fi
+
+  fi
+
+  if $GLIBCXX_IS_NATIVE && test $is_hosted = yes &&
+     test $enable_symvers != no; then
+    case "$host" in
+      *-*-cygwin*)
+	enable_abi_check=no ;;
+      *)
+	enable_abi_check=yes ;;
+    esac
+  else
+    # Only build this as native, since automake does not understand
+    # CXX_FOR_BUILD.
+    enable_abi_check=no
+  fi
+
+  # Export file names for ABI checking.
+  baseline_dir="$glibcxx_srcdir/config/abi/post/${abi_baseline_pair}"
+  
+  baseline_subdir_switch="$abi_baseline_subdir_switch"
+  
+
+
+# For gthread support.  Depends on GLIBCXX_ENABLE_SYMVERS.
+
+   @%:@ Check whether --enable-libstdcxx-threads was given.
+if test "${enable_libstdcxx_threads+set}" = set; then :
+  enableval=$enable_libstdcxx_threads; 
+      case "$enableval" in
+       yes|no) ;;
+       *) as_fn_error $? "Argument to enable/disable libstdcxx-threads must be yes or no" "$LINENO" 5 ;;
+      esac
+     
+else
+  enable_libstdcxx_threads=auto
+fi
+
+
+
+  if test x$enable_libstdcxx_threads = xauto ||
+     test x$enable_libstdcxx_threads = xyes; then
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions \
+	-I${toplevel_srcdir}/libgcc -I${toplevel_builddir}/libgcc"
+
+  target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
+  case $target_thread_file in
+    posix)
+      CXXFLAGS="$CXXFLAGS -DSUPPORTS_WEAK -DGTHREAD_USE_WEAK -D_PTHREADS"
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it can be safely assumed that mutex_timedlock is available" >&5
+$as_echo_n "checking whether it can be safely assumed that mutex_timedlock is available... " >&6; }
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+
+      // In case of POSIX threads check _POSIX_TIMEOUTS.
+      #if (defined(_PTHREADS) \
+	  && (!defined(_POSIX_TIMEOUTS) || _POSIX_TIMEOUTS <= 0))
+      #error
+      #endif
+    
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_gthread_use_mutex_timedlock=1
+else
+  ac_gthread_use_mutex_timedlock=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GTHREAD_USE_MUTEX_TIMEDLOCK $ac_gthread_use_mutex_timedlock
+_ACEOF
+
+
+  if test $ac_gthread_use_mutex_timedlock = 1 ; then res_mutex_timedlock=yes ;
+  else res_mutex_timedlock=no ; fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $res_mutex_timedlock" >&5
+$as_echo "$res_mutex_timedlock" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gthreads library" >&5
+$as_echo_n "checking for gthreads library... " >&6; }
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include "gthr.h"
+int
+main ()
+{
+
+      #ifndef __GTHREADS_CXX0X
+      #error
+      #endif
+    
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_has_gthreads=yes
+else
+  ac_has_gthreads=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  else
+    ac_has_gthreads=no
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_gthreads" >&5
+$as_echo "$ac_has_gthreads" >&6; }
+
+  if test x"$ac_has_gthreads" = x"yes"; then
+    
+$as_echo "@%:@define _GLIBCXX_HAS_GTHREADS 1" >>confdefs.h
+
+
+    # Also check for pthread_rwlock_t for std::shared_timed_mutex in C++14
+    # but only do so if we're using pthread in the gthread library.
+    # On VxWorks for example, pthread_rwlock_t is defined in sys/types.h
+    # but the pthread library is not there by default and the gthread library
+    # does not use it.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include "gthr.h"
+int
+main ()
+{
+
+      #if (!defined(_PTHREADS))
+      #error
+      #endif
+    
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_gthread_use_pthreads=yes
+else
+  ac_gthread_use_pthreads=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    if test x"$ac_gthread_use_pthreads" = x"yes"; then
+      ac_fn_cxx_check_type "$LINENO" "pthread_rwlock_t" "ac_cv_type_pthread_rwlock_t" "#include \"gthr.h\"
+"
+if test "x$ac_cv_type_pthread_rwlock_t" = xyes; then :
+  
+$as_echo "@%:@define _GLIBCXX_USE_PTHREAD_RWLOCK_T 1" >>confdefs.h
+
+fi
+
+    fi
+  fi
+
+  ac_fn_cxx_check_header_mongrel "$LINENO" "semaphore.h" "ac_cv_header_semaphore_h" "$ac_includes_default"
+if test "x$ac_cv_header_semaphore_h" = xyes; then :
+  
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for POSIX Semaphores and sem_timedwait" >&5
+$as_echo_n "checking for POSIX Semaphores and sem_timedwait... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <unistd.h>
+	#include <semaphore.h>
+	#include <limits.h>
+      
+int
+main ()
+{
+
+	#if !defined _POSIX_TIMEOUTS || _POSIX_TIMEOUTS <= 0
+	# error "POSIX Timeouts option not supported"
+	#elif !defined _POSIX_SEMAPHORES || _POSIX_SEMAPHORES <= 0
+	# error "POSIX Semaphores option not supported"
+	#else
+	#if defined SEM_VALUE_MAX
+	constexpr int sem_value_max = SEM_VALUE_MAX;
+	#elif defined _POSIX_SEM_VALUE_MAX
+	constexpr int sem_value_max = _POSIX_SEM_VALUE_MAX;
+	#else
+	# error "SEM_VALUE_MAX not available"
+	#endif
+	sem_t sem;
+	sem_init(&sem, 0, sem_value_max);
+	struct timespec ts = { 0 };
+	sem_timedwait(&sem, &ts);
+	#endif
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_have_posix_semaphore=yes
+else
+  ac_have_posix_semaphore=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  ac_have_posix_semaphore=no
+fi
+
+
+
+  if test $ac_have_posix_semaphore = yes ; then
+    
+$as_echo "@%:@define HAVE_POSIX_SEMAPHORE 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_have_posix_semaphore" >&5
+$as_echo "$ac_have_posix_semaphore" >&6; }
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+# For Filesystem TS.
+for ac_header in fcntl.h dirent.h sys/statvfs.h utime.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+
+   @%:@ Check whether --enable-libstdcxx-filesystem-ts was given.
+if test "${enable_libstdcxx_filesystem_ts+set}" = set; then :
+  enableval=$enable_libstdcxx_filesystem_ts; 
+      case "$enableval" in
+       yes|no|auto) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable libstdcxx-filesystem-ts" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_libstdcxx_filesystem_ts=auto
+fi
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build Filesystem TS support" >&5
+$as_echo_n "checking whether to build Filesystem TS support... " >&6; }
+  if test x"$ac_cv_header_dirent_h" != x"yes"; then
+    enable_libstdcxx_filesystem_ts=no
+  fi
+  if test x"$enable_libstdcxx_filesystem_ts" = x"auto"; then
+    case "${target_os}" in
+      freebsd*|netbsd*|openbsd*|dragonfly*|darwin*)
+        enable_libstdcxx_filesystem_ts=yes
+        ;;
+      gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu | uclinux*)
+        enable_libstdcxx_filesystem_ts=yes
+        ;;
+      rtems*)
+        enable_libstdcxx_filesystem_ts=yes
+        ;;
+      solaris*)
+        enable_libstdcxx_filesystem_ts=yes
+        ;;
+      mingw*)
+        enable_libstdcxx_filesystem_ts=yes
+        ;;
+      *)
+        enable_libstdcxx_filesystem_ts=no
+        ;;
+    esac
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_filesystem_ts" >&5
+$as_echo "$enable_libstdcxx_filesystem_ts" >&6; }
+    
+
+  
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS -fno-exceptions"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct dirent.d_type" >&5
+$as_echo_n "checking for struct dirent.d_type... " >&6; }
+if ${glibcxx_cv_dirent_d_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+
+       struct dirent d;
+       if (sizeof d.d_type) return 0;
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_dirent_d_type=yes
+else
+  glibcxx_cv_dirent_d_type=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+
+       struct dirent d;
+       if (sizeof d.d_type) return 0;
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_dirent_d_type=yes
+else
+  glibcxx_cv_dirent_d_type=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_dirent_d_type" >&5
+$as_echo "$glibcxx_cv_dirent_d_type" >&6; }
+  if test $glibcxx_cv_dirent_d_type = yes; then
+    
+$as_echo "@%:@define HAVE_STRUCT_DIRENT_D_TYPE 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for realpath" >&5
+$as_echo_n "checking for realpath... " >&6; }
+if ${glibcxx_cv_realpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+       #include <limits.h>
+       #include <stdlib.h>
+       #include <unistd.h>
+      
+int
+main ()
+{
+
+       #if _XOPEN_VERSION < 500
+       #error
+       #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX)
+       char *tmp = realpath((const char*)NULL, (char*)NULL);
+       #else
+       #error
+       #endif
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_realpath=yes
+else
+  glibcxx_cv_realpath=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+       #include <limits.h>
+       #include <stdlib.h>
+       #include <unistd.h>
+      
+int
+main ()
+{
+
+       #if _XOPEN_VERSION < 500
+       #error
+       #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX)
+       char *tmp = realpath((const char*)NULL, (char*)NULL);
+       #else
+       #error
+       #endif
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_realpath=yes
+else
+  glibcxx_cv_realpath=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_realpath" >&5
+$as_echo "$glibcxx_cv_realpath" >&6; }
+  if test $glibcxx_cv_realpath = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_REALPATH 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for utimensat" >&5
+$as_echo_n "checking for utimensat... " >&6; }
+if ${glibcxx_cv_utimensat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <fcntl.h>
+	#include <sys/stat.h>
+      
+int
+main ()
+{
+
+	struct timespec ts[2] = { { 0, UTIME_OMIT }, { 1, 1 } };
+	int i = utimensat(AT_FDCWD, "path", ts, 0);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_utimensat=yes
+else
+  glibcxx_cv_utimensat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <fcntl.h>
+	#include <sys/stat.h>
+      
+int
+main ()
+{
+
+	struct timespec ts[2] = { { 0, UTIME_OMIT }, { 1, 1 } };
+	int i = utimensat(AT_FDCWD, "path", ts, 0);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_utimensat=yes
+else
+  glibcxx_cv_utimensat=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_utimensat" >&5
+$as_echo "$glibcxx_cv_utimensat" >&6; }
+  if test $glibcxx_cv_utimensat = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_UTIMENSAT 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for utime" >&5
+$as_echo_n "checking for utime... " >&6; }
+if ${glibcxx_cv_utime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <utime.h>
+      
+int
+main ()
+{
+
+	struct utimbuf t = { 1, 1 };
+	int i = utime("path", &t);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_utime=yes
+else
+  glibcxx_cv_utime=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <utime.h>
+      
+int
+main ()
+{
+
+	struct utimbuf t = { 1, 1 };
+	int i = utime("path", &t);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_utime=yes
+else
+  glibcxx_cv_utime=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_utime" >&5
+$as_echo "$glibcxx_cv_utime" >&6; }
+  if test $glibcxx_cv_utime = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_UTIME 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lstat" >&5
+$as_echo_n "checking for lstat... " >&6; }
+if ${glibcxx_cv_lstat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ #include <sys/stat.h> 
+int
+main ()
+{
+
+	struct stat st;
+	int i = lstat("path", &st);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_lstat=yes
+else
+  glibcxx_cv_lstat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ #include <sys/stat.h> 
+int
+main ()
+{
+
+	struct stat st;
+	int i = lstat("path", &st);
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_lstat=yes
+else
+  glibcxx_cv_lstat=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_lstat" >&5
+$as_echo "$glibcxx_cv_lstat" >&6; }
+  if test $glibcxx_cv_lstat = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_LSTAT 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct stat.st_mtim.tv_nsec" >&5
+$as_echo_n "checking for struct stat.st_mtim.tv_nsec... " >&6; }
+if ${glibcxx_cv_st_mtim+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ #include <sys/stat.h> 
+int
+main ()
+{
+
+	struct stat st;
+	return st.st_mtim.tv_nsec;
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_st_mtim=yes
+else
+  glibcxx_cv_st_mtim=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ #include <sys/stat.h> 
+int
+main ()
+{
+
+	struct stat st;
+	return st.st_mtim.tv_nsec;
+      
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_st_mtim=yes
+else
+  glibcxx_cv_st_mtim=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_st_mtim" >&5
+$as_echo "$glibcxx_cv_st_mtim" >&6; }
+  if test $glibcxx_cv_st_mtim = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_ST_MTIM 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fchmod" >&5
+$as_echo_n "checking for fchmod... " >&6; }
+if ${glibcxx_cv_fchmod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+fchmod(1, S_IWUSR);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_fchmod=yes
+else
+  glibcxx_cv_fchmod=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+int
+main ()
+{
+fchmod(1, S_IWUSR);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_fchmod=yes
+else
+  glibcxx_cv_fchmod=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_fchmod" >&5
+$as_echo "$glibcxx_cv_fchmod" >&6; }
+  if test $glibcxx_cv_fchmod = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_FCHMOD 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fchmodat" >&5
+$as_echo_n "checking for fchmodat... " >&6; }
+if ${glibcxx_cv_fchmodat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <fcntl.h>
+	#include <sys/stat.h>
+      
+int
+main ()
+{
+fchmodat(AT_FDCWD, "", 0, AT_SYMLINK_NOFOLLOW);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_fchmodat=yes
+else
+  glibcxx_cv_fchmodat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+	#include <fcntl.h>
+	#include <sys/stat.h>
+      
+int
+main ()
+{
+fchmodat(AT_FDCWD, "", 0, AT_SYMLINK_NOFOLLOW);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_fchmodat=yes
+else
+  glibcxx_cv_fchmodat=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_fchmodat" >&5
+$as_echo "$glibcxx_cv_fchmodat" >&6; }
+  if test $glibcxx_cv_fchmodat = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_FCHMODAT 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sendfile that can copy files" >&5
+$as_echo_n "checking for sendfile that can copy files... " >&6; }
+if ${glibcxx_cv_sendfile+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      case "${target_os}" in
+      gnu* | linux* | solaris* | uclinux*)
+	if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/sendfile.h>
+int
+main ()
+{
+sendfile(1, 2, (off_t*)0, sizeof 1);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_sendfile=yes
+else
+  glibcxx_cv_sendfile=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/sendfile.h>
+int
+main ()
+{
+sendfile(1, 2, (off_t*)0, sizeof 1);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_sendfile=yes
+else
+  glibcxx_cv_sendfile=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+	;;
+      *)
+	glibcxx_cv_sendfile=no
+	;;
+    esac
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sendfile" >&5
+$as_echo "$glibcxx_cv_sendfile" >&6; }
+  if test $glibcxx_cv_sendfile = yes; then
+    
+$as_echo "@%:@define _GLIBCXX_USE_SENDFILE 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for link" >&5
+$as_echo_n "checking for link... " >&6; }
+if ${glibcxx_cv_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+link("", "");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_link=yes
+else
+  glibcxx_cv_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+link("", "");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_link=yes
+else
+  glibcxx_cv_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_link" >&5
+$as_echo "$glibcxx_cv_link" >&6; }
+  if test $glibcxx_cv_link = yes; then
+    
+$as_echo "@%:@define HAVE_LINK 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readlink" >&5
+$as_echo_n "checking for readlink... " >&6; }
+if ${glibcxx_cv_readlink+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+char buf[32]; readlink("", buf, sizeof(buf));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_readlink=yes
+else
+  glibcxx_cv_readlink=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+char buf[32]; readlink("", buf, sizeof(buf));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_readlink=yes
+else
+  glibcxx_cv_readlink=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_readlink" >&5
+$as_echo "$glibcxx_cv_readlink" >&6; }
+  if test $glibcxx_cv_readlink = yes; then
+    
+$as_echo "@%:@define HAVE_READLINK 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for symlink" >&5
+$as_echo_n "checking for symlink... " >&6; }
+if ${glibcxx_cv_symlink+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+symlink("", "");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_symlink=yes
+else
+  glibcxx_cv_symlink=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+symlink("", "");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_symlink=yes
+else
+  glibcxx_cv_symlink=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_symlink" >&5
+$as_echo "$glibcxx_cv_symlink" >&6; }
+  if test $glibcxx_cv_symlink = yes; then
+    
+$as_echo "@%:@define HAVE_SYMLINK 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for truncate" >&5
+$as_echo_n "checking for truncate... " >&6; }
+if ${glibcxx_cv_truncate+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+truncate("", 99);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_truncate=yes
+else
+  glibcxx_cv_truncate=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+truncate("", 99);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_truncate=yes
+else
+  glibcxx_cv_truncate=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_truncate" >&5
+$as_echo "$glibcxx_cv_truncate" >&6; }
+  if test $glibcxx_cv_truncate = yes; then
+    
+$as_echo "@%:@define HAVE_TRUNCATE 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fdopendir" >&5
+$as_echo_n "checking for fdopendir... " >&6; }
+if ${glibcxx_cv_fdopendir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+::DIR* dir = ::fdopendir(1);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_fdopendir=yes
+else
+  glibcxx_cv_fdopendir=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+::DIR* dir = ::fdopendir(1);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_fdopendir=yes
+else
+  glibcxx_cv_fdopendir=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_fdopendir" >&5
+$as_echo "$glibcxx_cv_fdopendir" >&6; }
+  if test $glibcxx_cv_fdopendir = yes; then
+    
+$as_echo "@%:@define HAVE_FDOPENDIR 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dirfd" >&5
+$as_echo_n "checking for dirfd... " >&6; }
+if ${glibcxx_cv_dirfd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+int fd = ::dirfd((::DIR*)0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_dirfd=yes
+else
+  glibcxx_cv_dirfd=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <dirent.h>
+int
+main ()
+{
+int fd = ::dirfd((::DIR*)0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_dirfd=yes
+else
+  glibcxx_cv_dirfd=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_dirfd" >&5
+$as_echo "$glibcxx_cv_dirfd" >&6; }
+  if test $glibcxx_cv_dirfd = yes; then
+    
+$as_echo "@%:@define HAVE_DIRFD 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for openat" >&5
+$as_echo_n "checking for openat... " >&6; }
+if ${glibcxx_cv_openat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <fcntl.h>
+int
+main ()
+{
+int fd = ::openat(AT_FDCWD, "", 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_openat=yes
+else
+  glibcxx_cv_openat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <fcntl.h>
+int
+main ()
+{
+int fd = ::openat(AT_FDCWD, "", 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_openat=yes
+else
+  glibcxx_cv_openat=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_openat" >&5
+$as_echo "$glibcxx_cv_openat" >&6; }
+  if test $glibcxx_cv_openat = yes; then
+    
+$as_echo "@%:@define HAVE_OPENAT 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for unlinkat" >&5
+$as_echo_n "checking for unlinkat... " >&6; }
+if ${glibcxx_cv_unlinkat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <fcntl.h>
+       #include <unistd.h>
+int
+main ()
+{
+::unlinkat(AT_FDCWD, "", AT_REMOVEDIR);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_unlinkat=yes
+else
+  glibcxx_cv_unlinkat=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <fcntl.h>
+       #include <unistd.h>
+int
+main ()
+{
+::unlinkat(AT_FDCWD, "", AT_REMOVEDIR);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  glibcxx_cv_unlinkat=yes
+else
+  glibcxx_cv_unlinkat=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_unlinkat" >&5
+$as_echo "$glibcxx_cv_unlinkat" >&6; }
+  if test $glibcxx_cv_unlinkat = yes; then
+    
+$as_echo "@%:@define HAVE_UNLINKAT 1" >>confdefs.h
+
+  fi
+  CXXFLAGS="$ac_save_CXXFLAGS"
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+   @%:@ Check whether --enable-libstdcxx-backtrace was given.
+if test "${enable_libstdcxx_backtrace+set}" = set; then :
+  enableval=$enable_libstdcxx_backtrace; 
+      case "$enableval" in
+       yes|no|auto) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable libstdcxx-backtrace" "$LINENO" 5 ;;
+	  	        esac
+     
+else
+  enable_libstdcxx_backtrace=auto
+fi
+
+
+
+  # Most of this is adapted from libsanitizer/configure.ac
+
+  BACKTRACE_CPPFLAGS=
+
+  # libbacktrace only needs atomics for int, which we've already tested
+  if test "$glibcxx_cv_atomic_int" = "yes"; then
+    BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_ATOMIC_FUNCTIONS=1"
+  fi
+
+  # Test for __sync support.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking __sync extensions" >&5
+$as_echo_n "checking __sync extensions... " >&6; }
+if ${glibcxx_cv_sys_sync+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test x$gcc_no_link = xyes; then
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+__sync_bool_compare_and_swap (&i, i, i);
+     __sync_lock_test_and_set (&i, 1);
+     __sync_lock_release (&i);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_sys_sync=yes
+else
+  glibcxx_cv_sys_sync=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+  if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+__sync_bool_compare_and_swap (&i, i, i);
+     __sync_lock_test_and_set (&i, 1);
+     __sync_lock_release (&i);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  glibcxx_cv_sys_sync=yes
+else
+  glibcxx_cv_sys_sync=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sys_sync" >&5
+$as_echo "$glibcxx_cv_sys_sync" >&6; }
+  if test "$glibcxx_cv_sys_sync" = "yes"; then
+    BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_SYNC_FUNCTIONS=1"
+  fi
+
+  # Check for dl_iterate_phdr.
+  for ac_header in link.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "link.h" "ac_cv_header_link_h" "$ac_includes_default"
+if test "x$ac_cv_header_link_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_LINK_H 1
+_ACEOF
+ 
+fi
+
+done
+
+  if test "$ac_cv_header_link_h" = "no"; then
+    have_dl_iterate_phdr=no
+  else
+    # When built as a GCC target library, we can't do a link test.
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <link.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "dl_iterate_phdr" >/dev/null 2>&1; then :
+  have_dl_iterate_phdr=yes
+else
+  have_dl_iterate_phdr=no
+fi
+rm -f conftest*
+
+  fi
+  if test "$have_dl_iterate_phdr" = "yes"; then
+    BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_DL_ITERATE_PHDR=1"
+  fi
+
+  # Check for the fcntl function.
+  if test -n "${with_target_subdir}"; then
+     case "${host}" in
+     *-*-mingw*) have_fcntl=no ;;
+     *) have_fcntl=yes ;;
+     esac
+  else
+    ac_fn_c_check_func "$LINENO" "fcntl" "ac_cv_func_fcntl"
+if test "x$ac_cv_func_fcntl" = xyes; then :
+  have_fcntl=yes
+else
+  have_fcntl=no
+fi
+
+  fi
+  if test "$have_fcntl" = "yes"; then
+    BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_FCNTL=1"
+  fi
+
+  ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strnlen" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_DECL_STRNLEN $ac_have_decl
+_ACEOF
+
+
+  # Check for getexecname function.
+  if test -n "${with_target_subdir}"; then
+     case "${host}" in
+     *-*-solaris2*) have_getexecname=yes ;;
+     *) have_getexecname=no ;;
+     esac
+  else
+    ac_fn_c_check_func "$LINENO" "getexecname" "ac_cv_func_getexecname"
+if test "x$ac_cv_func_getexecname" = xyes; then :
+  have_getexecname=yes
+else
+  have_getexecname=no
+fi
+
+  fi
+  if test "$have_getexecname" = "yes"; then
+    BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DHAVE_GETEXECNAME=1"
+  fi
+
+# The library needs to be able to read the executable itself.  Compile
+# a file to determine the executable format.  The awk script
+# filetype.awk prints out the file type.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking output filetype" >&5
+$as_echo_n "checking output filetype... " >&6; }
+if ${glibcxx_cv_sys_filetype+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  filetype=
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+int j;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "compiler failed
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+glibcxx_cv_sys_filetype=$filetype
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sys_filetype" >&5
+$as_echo "$glibcxx_cv_sys_filetype" >&6; }
+
+# Match the file type to decide what files to compile.
+FORMAT_FILE=
+case "$glibcxx_cv_sys_filetype" in
+elf*) FORMAT_FILE="elf.lo" ;;
+*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not determine output file type" >&5
+$as_echo "$as_me: WARNING: could not determine output file type" >&2;}
+   FORMAT_FILE="unknown.lo"
+   enable_libstdcxx_backtrace=no
+   ;;
+esac
+
+
+# ELF defines.
+elfsize=
+case "$glibcxx_cv_sys_filetype" in
+elf32) elfsize=32 ;;
+elf64) elfsize=64 ;;
+esac
+BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build libbacktrace support" >&5
+$as_echo_n "checking whether to build libbacktrace support... " >&6; }
+  if test "$enable_libstdcxx_backtrace" = "auto"; then
+    enable_libstdcxx_backtrace=no
+  fi
+  if test "$enable_libstdcxx_backtrace" = "yes"; then
+    BACKTRACE_SUPPORTED=1
+
+    for ac_header in sys/mman.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_mman_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define HAVE_SYS_MMAN_H 1
+_ACEOF
+ 
+fi
+
+done
+
+    case "${host}" in
+      *-*-msdosdjgpp) # DJGPP has sys/man.h, but no mmap
+	have_mmap=no ;;
+      *-*-*)
+	have_mmap="$ac_cv_header_sys_mman_h" ;;
+    esac
+
+    if test "$have_mmap" = "no"; then
+      VIEW_FILE=read.lo
+      ALLOC_FILE=alloc.lo
+    else
+      VIEW_FILE=mmapio.lo
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+    #include <sys/mman.h>
+    #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
+      #error no MAP_ANONYMOUS
+    #endif
+    
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ALLOC_FILE=mmap.lo
+else
+  ALLOC_FILE=alloc.lo
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+    fi
+    
+    
+
+    BACKTRACE_USES_MALLOC=0
+    if test "$ALLOC_FILE" = "alloc.lo"; then
+      BACKTRACE_USES_MALLOC=1
+    fi
+
+    if test "$ac_has_gthreads" = "yes"; then
+      BACKTRACE_SUPPORTS_THREADS=1
+    else
+      BACKTRACE_SUPPORTS_THREADS=0
+    fi
+    
+    
+    
+    
+    
+$as_echo "@%:@define HAVE_STACKTRACE 1" >>confdefs.h
+
+  else
+    BACKTRACE_SUPPORTED=0
+    BACKTRACE_USES_MALLOC=0
+    BACKTRACE_SUPPORTS_THREADS=0
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_backtrace" >&5
+$as_echo "$enable_libstdcxx_backtrace" >&6; }
+    
+
+
+# For Networking TS.
+for ac_header in fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+@%:@define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ 
+fi
+
+done
+
+ac_fn_c_check_decl "$LINENO" "F_GETFL" "ac_cv_have_decl_F_GETFL" "#include <fcntl.h>
+"
+if test "x$ac_cv_have_decl_F_GETFL" = xyes; then :
+  
+fi
+
+ac_fn_c_check_decl "$LINENO" "F_SETFL" "ac_cv_have_decl_F_SETFL" "#include <fcntl.h>
+"
+if test "x$ac_cv_have_decl_F_SETFL" = xyes; then :
+  
+fi
+
+if test "$ac_cv_have_decl_F_GETFL$ac_cv_have_decl_F_SETFL" = yesyes ; then
+  ac_fn_c_check_decl "$LINENO" "O_NONBLOCK" "ac_cv_have_decl_O_NONBLOCK" "#include <fcntl.h>
+"
+if test "x$ac_cv_have_decl_O_NONBLOCK" = xyes; then :
+  
+fi
+
+fi
+
+# For Transactional Memory TS
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how size_t is mangled" >&5
+$as_echo_n "checking how size_t is mangled... " >&6; }
+if ${glibcxx_cv_size_t_mangling+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+extern __SIZE_TYPE__ x; extern unsigned long x;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_size_t_mangling=m
+else
+  
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+extern __SIZE_TYPE__ x; extern unsigned int x;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_size_t_mangling=j
+else
+  
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+extern __SIZE_TYPE__ x; extern unsigned long long x;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_size_t_mangling=y
+else
+  
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+extern __SIZE_TYPE__ x; extern unsigned short x;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_size_t_mangling=t
+else
+  
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+extern __SIZE_TYPE__ x; extern __int20 unsigned x;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  glibcxx_cv_size_t_mangling=u6uint20
+else
+  glibcxx_cv_size_t_mangling=x
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+          
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+        
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_size_t_mangling" >&5
+$as_echo "$glibcxx_cv_size_t_mangling" >&6; }
+  if test $glibcxx_cv_size_t_mangling = x; then
+    as_fn_error $? "Unknown underlying type for size_t" "$LINENO" 5
+  fi
+  
+cat >>confdefs.h <<_ACEOF
+@%:@define _GLIBCXX_MANGLE_SIZE_T $glibcxx_cv_size_t_mangling
+_ACEOF
+
+
+
+# Check which release added std::exception_ptr for the target
+
+  if test $enable_symvers != no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for first version to support std::exception_ptr" >&5
+$as_echo_n "checking for first version to support std::exception_ptr... " >&6; }
+    case ${target} in
+      aarch64-*-* | alpha-*-* | hppa*-*-* | i?86-*-* | x86_64-*-* | \
+      m68k-*-* | powerpc*-*-* | s390*-*-* | *-*-solaris* )
+        ac_exception_ptr_since_gcc46=yes
+        ;;
+      *)
+        # If the value of this macro changes then we will need to hardcode
+        # yes/no here for additional targets based on the original value.
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+          #if __GCC_ATOMIC_INT_LOCK_FREE <= 1
+          # error atomic int not always lock free
+          #endif
+          
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_exception_ptr_since_gcc46=yes
+else
+  ac_exception_ptr_since_gcc46=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+        ;;
+    esac
+    if test x"$ac_exception_ptr_since_gcc46" = x"yes" ; then
+      
+$as_echo "@%:@define HAVE_EXCEPTION_PTR_SINCE_GCC46 1" >>confdefs.h
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: 4.6.0" >&5
+$as_echo "4.6.0" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: 7.1.0" >&5
+$as_echo "7.1.0" >&6; }
+    fi
+  fi
+
+
+# Define documentation rules conditionally.
+
+# See if makeinfo has been installed and is modern enough
+# that we can use it.
+
+  # Extract the first word of "makeinfo", so it can be a program name with args.
+set dummy makeinfo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MAKEINFO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$MAKEINFO"; then
+  ac_cv_prog_MAKEINFO="$MAKEINFO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MAKEINFO="makeinfo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MAKEINFO=$ac_cv_prog_MAKEINFO
+if test -n "$MAKEINFO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAKEINFO" >&5
+$as_echo "$MAKEINFO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test -n "$MAKEINFO"; then
+    # Found it, now check the version.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modern makeinfo" >&5
+$as_echo_n "checking for modern makeinfo... " >&6; }
+if ${gcc_cv_prog_makeinfo_modern+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_prog_version=`eval $MAKEINFO --version 2>&1 |
+                                     sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
+
+                    case $ac_prog_version in
+                      '')  gcc_cv_prog_makeinfo_modern=no;;
+                      4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*)  gcc_cv_prog_makeinfo_modern=yes;;
+                      *)   gcc_cv_prog_makeinfo_modern=no;;
+                    esac
+                   
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_prog_makeinfo_modern" >&5
+$as_echo "$gcc_cv_prog_makeinfo_modern" >&6; }
+  else
+    gcc_cv_prog_makeinfo_modern=no
+  fi
+  if test $gcc_cv_prog_makeinfo_modern = no; then
+    MAKEINFO="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing makeinfo"
+  fi
+
+ if test $gcc_cv_prog_makeinfo_modern = "yes"; then
+  BUILD_INFO_TRUE=
+  BUILD_INFO_FALSE='#'
+else
+  BUILD_INFO_TRUE='#'
+  BUILD_INFO_FALSE=
+fi
+
+
+# Check for doxygen
+# Extract the first word of "doxygen", so it can be a program name with args.
+set dummy doxygen; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DOXYGEN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DOXYGEN"; then
+  ac_cv_prog_DOXYGEN="$DOXYGEN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DOXYGEN="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_DOXYGEN" && ac_cv_prog_DOXYGEN="no"
+fi
+fi
+DOXYGEN=$ac_cv_prog_DOXYGEN
+if test -n "$DOXYGEN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOXYGEN" >&5
+$as_echo "$DOXYGEN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Extract the first word of "dot", so it can be a program name with args.
+set dummy dot; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DOT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DOT"; then
+  ac_cv_prog_DOT="$DOT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DOT="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_DOT" && ac_cv_prog_DOT="no"
+fi
+fi
+DOT=$ac_cv_prog_DOT
+if test -n "$DOT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOT" >&5
+$as_echo "$DOT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+# Check for docbook
+# Extract the first word of "xmlcatalog", so it can be a program name with args.
+set dummy xmlcatalog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_XMLCATALOG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$XMLCATALOG"; then
+  ac_cv_prog_XMLCATALOG="$XMLCATALOG" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_XMLCATALOG="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_XMLCATALOG" && ac_cv_prog_XMLCATALOG="no"
+fi
+fi
+XMLCATALOG=$ac_cv_prog_XMLCATALOG
+if test -n "$XMLCATALOG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XMLCATALOG" >&5
+$as_echo "$XMLCATALOG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Extract the first word of "xsltproc", so it can be a program name with args.
+set dummy xsltproc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_XSLTPROC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$XSLTPROC"; then
+  ac_cv_prog_XSLTPROC="$XSLTPROC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_XSLTPROC="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_XSLTPROC" && ac_cv_prog_XSLTPROC="no"
+fi
+fi
+XSLTPROC=$ac_cv_prog_XSLTPROC
+if test -n "$XSLTPROC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XSLTPROC" >&5
+$as_echo "$XSLTPROC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Extract the first word of "xmllint", so it can be a program name with args.
+set dummy xmllint; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_XMLLINT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$XMLLINT"; then
+  ac_cv_prog_XMLLINT="$XMLLINT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_XMLLINT="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_XMLLINT" && ac_cv_prog_XMLLINT="no"
+fi
+fi
+XMLLINT=$ac_cv_prog_XMLLINT
+if test -n "$XMLLINT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XMLLINT" >&5
+$as_echo "$XMLLINT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+glibcxx_docbook_url=http://docbook.sourceforge.net/release/xsl-ns/current/
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for local stylesheet directory" >&5
+$as_echo_n "checking for local stylesheet directory... " >&6; }
+glibcxx_local_stylesheets=no
+if test x${XMLCATALOG} = xyes && xsl_style_dir=`xmlcatalog "" $glibcxx_docbook_url 2>/dev/null`
+then
+  XSL_STYLE_DIR=`echo $xsl_style_dir | sed -n 's;^file://;;p'`
+  glibcxx_local_stylesheets=yes
+else
+  for dir in \
+    /usr/share/sgml/docbook/xsl-ns-stylesheets \
+    /usr/share/xml/docbook/stylesheet/docbook-xsl-ns \
+    /usr/share/xml/docbook/stylesheet/nwalsh5/current \
+    /usr/share/xml/docbook/stylesheet/nwalsh/current
+  do
+    if test -d $dir; then
+      glibcxx_local_stylesheets=yes
+      XSL_STYLE_DIR=$dir
+      break
+    fi
+  done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_local_stylesheets" >&5
+$as_echo "$glibcxx_local_stylesheets" >&6; }
+
+if test x"$glibcxx_local_stylesheets" = x"yes"; then
+  
+  { $as_echo "$as_me:${as_lineno-$LINENO}: $XSL_STYLE_DIR" >&5
+$as_echo "$as_me: $XSL_STYLE_DIR" >&6;}
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for docbook stylesheets for documentation creation" >&5
+$as_echo_n "checking for docbook stylesheets for documentation creation... " >&6; }
+  glibcxx_stylesheets=no
+  if test x${XMLCATALOG} = xno || xmlcatalog "" $glibcxx_docbook_url/xhtml/docbook.xsl >/dev/null 2>&1; then
+    if test x${XSLTPROC} = xyes && echo '<title/>' | xsltproc --noout --nonet --xinclude $glibcxx_docbook_url/xhtml/docbook.xsl - 2>/dev/null; then
+      glibcxx_stylesheets=yes
+    fi
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_stylesheets" >&5
+$as_echo "$glibcxx_stylesheets" >&6; }
+
+else
+  glibcxx_stylesheets=no
+fi
+
+# Check for epub3 dependencies.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for epub3 stylesheets for documentation creation" >&5
+$as_echo_n "checking for epub3 stylesheets for documentation creation... " >&6; }
+glibcxx_epub_stylesheets=no
+if test x"$glibcxx_local_stylesheets" = x"yes"; then
+   if test -f "$XSL_STYLE_DIR/epub3/chunk.xsl"; then
+      glibcxx_epub_stylesheets=yes
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_epub_stylesheets" >&5
+$as_echo "$glibcxx_epub_stylesheets" >&6; }
+ if test x"$glibcxx_epub_stylesheets" = x"yes"; then
+  BUILD_EPUB_TRUE=
+  BUILD_EPUB_FALSE='#'
+else
+  BUILD_EPUB_TRUE='#'
+  BUILD_EPUB_FALSE=
+fi
+
+
+
+
+# Check for xml/html dependencies.
+ if test $ac_cv_prog_DOXYGEN = "yes" &&
+	       test $ac_cv_prog_DOT = "yes" &&
+	       test $ac_cv_prog_XSLTPROC = "yes" &&
+	       test $ac_cv_prog_XMLLINT = "yes" &&
+	       test $glibcxx_stylesheets = "yes"; then
+  BUILD_XML_TRUE=
+  BUILD_XML_FALSE='#'
+else
+  BUILD_XML_TRUE='#'
+  BUILD_XML_FALSE=
+fi
+
+
+ if test $ac_cv_prog_DOXYGEN = "yes" &&
+	       test $ac_cv_prog_DOT = "yes" &&
+	       test $ac_cv_prog_XSLTPROC = "yes" &&
+	       test $ac_cv_prog_XMLLINT = "yes" &&
+	       test $glibcxx_stylesheets = "yes"; then
+  BUILD_HTML_TRUE=
+  BUILD_HTML_FALSE='#'
+else
+  BUILD_HTML_TRUE='#'
+  BUILD_HTML_FALSE=
+fi
+
+
+# Check for man dependencies.
+ if test $ac_cv_prog_DOXYGEN = "yes" &&
+	       test $ac_cv_prog_DOT = "yes"; then
+  BUILD_MAN_TRUE=
+  BUILD_MAN_FALSE='#'
+else
+  BUILD_MAN_TRUE='#'
+  BUILD_MAN_FALSE=
+fi
+
+
+# Check for pdf dependencies.
+# Extract the first word of "dblatex", so it can be a program name with args.
+set dummy dblatex; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DBLATEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DBLATEX"; then
+  ac_cv_prog_DBLATEX="$DBLATEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DBLATEX="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_DBLATEX" && ac_cv_prog_DBLATEX="no"
+fi
+fi
+DBLATEX=$ac_cv_prog_DBLATEX
+if test -n "$DBLATEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DBLATEX" >&5
+$as_echo "$DBLATEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Extract the first word of "pdflatex", so it can be a program name with args.
+set dummy pdflatex; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PDFLATEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$PDFLATEX"; then
+  ac_cv_prog_PDFLATEX="$PDFLATEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_PDFLATEX="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_PDFLATEX" && ac_cv_prog_PDFLATEX="no"
+fi
+fi
+PDFLATEX=$ac_cv_prog_PDFLATEX
+if test -n "$PDFLATEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PDFLATEX" >&5
+$as_echo "$PDFLATEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test $ac_cv_prog_DOXYGEN = "yes" &&
+	       test $ac_cv_prog_DOT = "yes" &&
+	       test $ac_cv_prog_XSLTPROC = "yes" &&
+	       test $ac_cv_prog_XMLLINT = "yes" &&
+	       test $ac_cv_prog_DBLATEX = "yes" &&
+	       test $ac_cv_prog_PDFLATEX = "yes"; then
+  BUILD_PDF_TRUE=
+  BUILD_PDF_FALSE='#'
+else
+  BUILD_PDF_TRUE='#'
+  BUILD_PDF_FALSE=
+fi
+
+
+case "$build" in
+ *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
+ * ) glibcxx_include_dir_notparallel=no ;;
+esac
+ if test $glibcxx_include_dir_notparallel = "yes"; then
+  INCLUDE_DIR_NOTPARALLEL_TRUE=
+  INCLUDE_DIR_NOTPARALLEL_FALSE='#'
+else
+  INCLUDE_DIR_NOTPARALLEL_TRUE='#'
+  INCLUDE_DIR_NOTPARALLEL_FALSE=
+fi
+
+
+# Propagate the target-specific source directories through the build chain.
+ATOMICITY_SRCDIR=config/${atomicity_dir}
+ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
+ATOMIC_FLAGS=${atomic_flags}
+CPU_DEFINES_SRCDIR=config/${cpu_defines_dir}
+OS_INC_SRCDIR=config/${os_include_dir}
+ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir}
+ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir}
+CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random}
+CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random}
+
+
+
+
+
+
+
+
+
+
+# Conditionalize the makefile for this target machine.
+tmake_file_=
+for f in ${tmake_file}
+do
+	if test -f ${srcdir}/config/$f
+	then
+		tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
+	fi
+done
+tmake_file="${tmake_file_}"
+
+
+# Add CET specific flags if Intel CET is enabled.
+ @%:@ Check whether --enable-cet was given.
+if test "${enable_cet+set}" = set; then :
+  enableval=$enable_cet; 
+      case "$enableval" in
+       yes|no|auto) ;;
+       *) as_fn_error $? "Unknown argument to enable/disable cet" "$LINENO" 5 ;;
+                          esac
+     
+else
+  enable_cet=auto
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5
+$as_echo_n "checking for CET support... " >&6; }
+
+# NB: Avoid nested save_CFLAGS and save_LDFLAGS.
+case "$host" in
+  i[34567]86-*-linux* | x86_64-*-linux*)
+    case "$enable_cet" in
+      auto)
+	# Check if target supports multi-byte NOPs
+	# and if compiler and assembler support CET insn.
+	cet_save_CFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -fcf-protection"
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+#if !defined(__SSE2__)
+#error target does not support multi-byte NOPs
+#else
+asm ("setssbsy");
+#endif
+	  
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  enable_cet=yes
+else
+  enable_cet=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	CFLAGS="$cet_save_CFLAGS"
+	;;
+      yes)
+	# Check if assembler supports CET.
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+asm ("setssbsy");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  
+else
+  as_fn_error $? "assembler with CET support is required for --enable-cet" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	;;
+    esac
+    ;;
+  *)
+    enable_cet=no
+    ;;
+esac
+if test x$enable_cet = xyes; then
+  CET_FLAGS="-fcf-protection -mshstk"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS"
+EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
+
+
+
+# Determine cross-compile flags and AM_CONDITIONALs.
+#AC_SUBST(GLIBCXX_IS_NATIVE)
+#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
+    if test $is_hosted = yes; then
+  GLIBCXX_HOSTED_TRUE=
+  GLIBCXX_HOSTED_FALSE='#'
+else
+  GLIBCXX_HOSTED_TRUE='#'
+  GLIBCXX_HOSTED_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_pch = yes; then
+  GLIBCXX_BUILD_PCH_TRUE=
+  GLIBCXX_BUILD_PCH_FALSE='#'
+else
+  GLIBCXX_BUILD_PCH_TRUE='#'
+  GLIBCXX_BUILD_PCH_FALSE=
+fi
+
+  
+    if test $enable_float128 = yes; then
+  ENABLE_FLOAT128_TRUE=
+  ENABLE_FLOAT128_FALSE='#'
+else
+  ENABLE_FLOAT128_TRUE='#'
+  ENABLE_FLOAT128_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_allocator_flag = new; then
+  ENABLE_ALLOCATOR_NEW_TRUE=
+  ENABLE_ALLOCATOR_NEW_FALSE='#'
+else
+  ENABLE_ALLOCATOR_NEW_TRUE='#'
+  ENABLE_ALLOCATOR_NEW_FALSE=
+fi
+
+  
+    if test $enable_cheaders = c; then
+  GLIBCXX_C_HEADERS_C_TRUE=
+  GLIBCXX_C_HEADERS_C_FALSE='#'
+else
+  GLIBCXX_C_HEADERS_C_TRUE='#'
+  GLIBCXX_C_HEADERS_C_FALSE=
+fi
+
+  
+    if test $enable_cheaders = c_std; then
+  GLIBCXX_C_HEADERS_C_STD_TRUE=
+  GLIBCXX_C_HEADERS_C_STD_FALSE='#'
+else
+  GLIBCXX_C_HEADERS_C_STD_TRUE='#'
+  GLIBCXX_C_HEADERS_C_STD_FALSE=
+fi
+
+  
+    if test $enable_cheaders = c_global; then
+  GLIBCXX_C_HEADERS_C_GLOBAL_TRUE=
+  GLIBCXX_C_HEADERS_C_GLOBAL_FALSE='#'
+else
+  GLIBCXX_C_HEADERS_C_GLOBAL_TRUE='#'
+  GLIBCXX_C_HEADERS_C_GLOBAL_FALSE=
+fi
+
+  
+    if test $c_compatibility = yes; then
+  GLIBCXX_C_HEADERS_COMPATIBILITY_TRUE=
+  GLIBCXX_C_HEADERS_COMPATIBILITY_FALSE='#'
+else
+  GLIBCXX_C_HEADERS_COMPATIBILITY_TRUE='#'
+  GLIBCXX_C_HEADERS_COMPATIBILITY_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_debug = yes; then
+  GLIBCXX_BUILD_DEBUG_TRUE=
+  GLIBCXX_BUILD_DEBUG_FALSE='#'
+else
+  GLIBCXX_BUILD_DEBUG_TRUE='#'
+  GLIBCXX_BUILD_DEBUG_FALSE=
+fi
+
+  
+    if test $enable_extern_template = yes; then
+  ENABLE_EXTERN_TEMPLATE_TRUE=
+  ENABLE_EXTERN_TEMPLATE_FALSE='#'
+else
+  ENABLE_EXTERN_TEMPLATE_TRUE='#'
+  ENABLE_EXTERN_TEMPLATE_FALSE=
+fi
+
+  
+    if test $python_mod_dir != no; then
+  ENABLE_PYTHONDIR_TRUE=
+  ENABLE_PYTHONDIR_FALSE='#'
+else
+  ENABLE_PYTHONDIR_TRUE='#'
+  ENABLE_PYTHONDIR_FALSE=
+fi
+
+  
+    if test $enable_werror = yes; then
+  ENABLE_WERROR_TRUE=
+  ENABLE_WERROR_FALSE='#'
+else
+  ENABLE_WERROR_TRUE='#'
+  ENABLE_WERROR_FALSE=
+fi
+
+  
+    if test $enable_vtable_verify = yes; then
+  ENABLE_VTABLE_VERIFY_TRUE=
+  ENABLE_VTABLE_VERIFY_FALSE='#'
+else
+  ENABLE_VTABLE_VERIFY_TRUE='#'
+  ENABLE_VTABLE_VERIFY_FALSE=
+fi
+
+  
+    if test $enable_symvers != no; then
+  ENABLE_SYMVERS_TRUE=
+  ENABLE_SYMVERS_FALSE='#'
+else
+  ENABLE_SYMVERS_TRUE='#'
+  ENABLE_SYMVERS_FALSE=
+fi
+
+  
+    if test $enable_symvers = gnu; then
+  ENABLE_SYMVERS_GNU_TRUE=
+  ENABLE_SYMVERS_GNU_FALSE='#'
+else
+  ENABLE_SYMVERS_GNU_TRUE='#'
+  ENABLE_SYMVERS_GNU_FALSE=
+fi
+
+  
+    if test $enable_symvers = gnu-versioned-namespace; then
+  ENABLE_SYMVERS_GNU_NAMESPACE_TRUE=
+  ENABLE_SYMVERS_GNU_NAMESPACE_FALSE='#'
+else
+  ENABLE_SYMVERS_GNU_NAMESPACE_TRUE='#'
+  ENABLE_SYMVERS_GNU_NAMESPACE_FALSE=
+fi
+
+  
+    if test $enable_symvers = darwin; then
+  ENABLE_SYMVERS_DARWIN_TRUE=
+  ENABLE_SYMVERS_DARWIN_FALSE='#'
+else
+  ENABLE_SYMVERS_DARWIN_TRUE='#'
+  ENABLE_SYMVERS_DARWIN_FALSE=
+fi
+
+  
+    if test $enable_symvers = sun; then
+  ENABLE_SYMVERS_SUN_TRUE=
+  ENABLE_SYMVERS_SUN_FALSE='#'
+else
+  ENABLE_SYMVERS_SUN_TRUE='#'
+  ENABLE_SYMVERS_SUN_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_visibility = yes; then
+  ENABLE_VISIBILITY_TRUE=
+  ENABLE_VISIBILITY_FALSE='#'
+else
+  ENABLE_VISIBILITY_TRUE='#'
+  ENABLE_VISIBILITY_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_dual_abi = yes; then
+  ENABLE_DUAL_ABI_TRUE=
+  ENABLE_DUAL_ABI_FALSE='#'
+else
+  ENABLE_DUAL_ABI_TRUE='#'
+  ENABLE_DUAL_ABI_FALSE=
+fi
+
+  
+    if test $glibcxx_cxx11_abi = 1; then
+  ENABLE_CXX11_ABI_TRUE=
+  ENABLE_CXX11_ABI_FALSE='#'
+else
+  ENABLE_CXX11_ABI_TRUE='#'
+  ENABLE_CXX11_ABI_FALSE=
+fi
+
+  
+    if test $ac_ldbl_compat = yes; then
+  GLIBCXX_LDBL_COMPAT_TRUE=
+  GLIBCXX_LDBL_COMPAT_FALSE='#'
+else
+  GLIBCXX_LDBL_COMPAT_TRUE='#'
+  GLIBCXX_LDBL_COMPAT_FALSE=
+fi
+
+  
+    if test $ac_ldbl_alt128_compat = yes; then
+  GLIBCXX_LDBL_ALT128_COMPAT_TRUE=
+  GLIBCXX_LDBL_ALT128_COMPAT_FALSE='#'
+else
+  GLIBCXX_LDBL_ALT128_COMPAT_TRUE='#'
+  GLIBCXX_LDBL_ALT128_COMPAT_FALSE=
+fi
+
+  
+    if test $enable_libstdcxx_filesystem_ts = yes; then
+  ENABLE_FILESYSTEM_TS_TRUE=
+  ENABLE_FILESYSTEM_TS_FALSE='#'
+else
+  ENABLE_FILESYSTEM_TS_TRUE='#'
+  ENABLE_FILESYSTEM_TS_FALSE=
+fi
+
+  
+    if test "$enable_libstdcxx_backtrace" = yes; then
+  ENABLE_BACKTRACE_TRUE=
+  ENABLE_BACKTRACE_FALSE='#'
+else
+  ENABLE_BACKTRACE_TRUE='#'
+  ENABLE_BACKTRACE_FALSE=
+fi
+
+  
+
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+if test ${multilib} = yes; then
+  multilib_arg="--enable-multilib"
+else
+  multilib_arg=
+fi
+
+# Export all the install information.
+
+  glibcxx_toolexecdir=no
+  glibcxx_toolexeclibdir=no
+  glibcxx_prefixdir=$prefix
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gxx-include-dir" >&5
+$as_echo_n "checking for gxx-include-dir... " >&6; }
+  
+@%:@ Check whether --with-gxx-include-dir was given.
+if test "${with_gxx_include_dir+set}" = set; then :
+  withval=$with_gxx_include_dir; case "$withval" in
+      yes) as_fn_error $? "Missing directory for --with-gxx-include-dir" "$LINENO" 5 ;;
+      no)  gxx_include_dir=no ;;
+      *)   gxx_include_dir=$withval ;;
+     esac
+else
+  gxx_include_dir=no
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gxx_include_dir" >&5
+$as_echo "$gxx_include_dir" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for --enable-version-specific-runtime-libs" >&5
+$as_echo_n "checking for --enable-version-specific-runtime-libs... " >&6; }
+  @%:@ Check whether --enable-version-specific-runtime-libs was given.
+if test "${enable_version_specific_runtime_libs+set}" = set; then :
+  enableval=$enable_version_specific_runtime_libs; case "$enableval" in
+      yes) version_specific_libs=yes ;;
+      no)  version_specific_libs=no ;;
+      *)   as_fn_error $? "Unknown argument to enable/disable version-specific libs" "$LINENO" 5;;
+     esac
+else
+  version_specific_libs=no
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $version_specific_libs" >&5
+$as_echo "$version_specific_libs" >&6; }
+
+  
+@%:@ Check whether --with-toolexeclibdir was given.
+if test "${with_toolexeclibdir+set}" = set; then :
+  withval=$with_toolexeclibdir; case ${with_toolexeclibdir} in
+  /)
+    ;;
+  */)
+    with_toolexeclibdir=`echo $with_toolexeclibdir | sed 's,/$,,'`
+    ;;
+esac
+else
+  with_toolexeclibdir=no
+fi
+
+
+
+  # Default case for install directory for include files.
+  if test $version_specific_libs = no && test $gxx_include_dir = no; then
+    gxx_include_dir='include/c++/${gcc_version}'
+    if test -n "$with_cross_host" &&
+       test x"$with_cross_host" != x"no"; then
+      gxx_include_dir='${prefix}/${target_alias}/'"$gxx_include_dir"
+    else
+      gxx_include_dir='${prefix}/'"$gxx_include_dir"
+    fi
+  fi
+
+  # Version-specific runtime libs processing.
+  if test $version_specific_libs = yes; then
+    # Need the gcc compiler version to know where to install libraries
+    # and header files if --enable-version-specific-runtime-libs option
+    # is selected.  FIXME: these variables are misnamed, there are
+    # no executables installed in _toolexecdir or _toolexeclibdir.
+    if test x"$gxx_include_dir" = x"no"; then
+      gxx_include_dir='${libdir}/gcc/${host_alias}/${gcc_version}/include/c++'
+    fi
+    glibcxx_toolexecdir='${libdir}/gcc/${host_alias}'
+    glibcxx_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)'
+  fi
+
+  # Calculate glibcxx_toolexecdir, glibcxx_toolexeclibdir
+  # Install a library built with a cross compiler in tooldir, not libdir.
+  if test x"$glibcxx_toolexecdir" = x"no"; then
+    if test -n "$with_cross_host" &&
+       test x"$with_cross_host" != x"no"; then
+      glibcxx_toolexecdir='${exec_prefix}/${host_alias}'
+      case ${with_toolexeclibdir} in
+	no)
+	  glibcxx_toolexeclibdir='${toolexecdir}/lib'
+	  ;;
+	*)
+	  glibcxx_toolexeclibdir=${with_toolexeclibdir}
+	  ;;
+      esac
+    else
+      glibcxx_toolexecdir='${libdir}/gcc/${host_alias}'
+      glibcxx_toolexeclibdir='${libdir}'
+    fi
+    multi_os_directory=`$CXX -print-multi-os-directory`
+    case $multi_os_directory in
+      .) ;; # Avoid trailing /.
+      *) glibcxx_toolexeclibdir=$glibcxx_toolexeclibdir/$multi_os_directory ;;
+    esac
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for install location" >&5
+$as_echo_n "checking for install location... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gxx_include_dir" >&5
+$as_echo "$gxx_include_dir" >&6; }
+
+  
+  
+  
+  
+
+
+# Export all the include and flag information to Makefiles.
+
+  # Used for every C++ compile we perform.
+  GLIBCXX_INCLUDES="\
+-I$glibcxx_builddir/include/$host_alias \
+-I$glibcxx_builddir/include \
+-I$glibcxx_srcdir/libsupc++"
+
+  # For Canadian crosses, pick this up too.
+  if test $CANADIAN = yes; then
+    GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES -I\${includedir}"
+  fi
+
+  # Stuff in the actual top level.  Currently only used by libsupc++ to
+  # get unwind* headers from the libgcc dir.
+  #TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc -I$(toplevel_srcdir)/include'
+  TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc'
+
+  # Now, export this to all the little Makefiles....
+  
+  
+
+
+  # Optimization flags that are probably a good idea for thrill-seekers. Just
+  # uncomment the lines below and make, everything else is ready to go...
+  # Alternatively OPTIMIZE_CXXFLAGS can be set in configure.host.
+  # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
+  
+
+  WARN_FLAGS="-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi=2"
+  
+
+
+# Determine what GCC version number to use in filesystem paths.
+
+  get_gcc_base_ver="cat"
+  
+@%:@ Check whether --with-gcc-major-version-only was given.
+if test "${with_gcc_major_version_only+set}" = set; then :
+  withval=$with_gcc_major_version_only; if test x$with_gcc_major_version_only = xyes ; then
+        get_gcc_base_ver="sed -e 's/^\([0-9]*\).*/\1/'"
+      fi
+  
+fi
+
+  
+
+
+ac_config_files="$ac_config_files Makefile"
+
+ac_config_files="$ac_config_files scripts/testsuite_flags"
+
+ac_config_files="$ac_config_files scripts/extract_symvers"
+
+ac_config_files="$ac_config_files doc/xsl/customization.xsl"
+
+ac_config_files="$ac_config_files src/libbacktrace/backtrace-supported.h"
+
+
+# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
+# that multilib installs will end up installed in the correct place.
+# The testsuite needs it for multilib-aware ABI baseline files.
+# To work around this not being passed down from config-ml.in ->
+# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
+# append it here.  Only modify Makefiles that have just been created.
+#
+# Also, get rid of this simulated-VPATH thing that automake does.
+ac_config_files="$ac_config_files include/Makefile libsupc++/Makefile src/Makefile src/c++98/Makefile src/c++11/Makefile src/c++17/Makefile src/c++20/Makefile src/filesystem/Makefile src/libbacktrace/Makefile doc/Makefile po/Makefile testsuite/Makefile python/Makefile"
+
+
+ac_config_commands="$ac_config_commands generate-headers"
+
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIB@&t@OBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
+  as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_HOSTED_TRUE}" && test -z "${GLIBCXX_HOSTED_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_HOSTED\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_BUILD_PCH_TRUE}" && test -z "${GLIBCXX_BUILD_PCH_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_BUILD_PCH\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_FLOAT128_TRUE}" && test -z "${ENABLE_FLOAT128_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_FLOAT128\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_ALLOCATOR_NEW_TRUE}" && test -z "${ENABLE_ALLOCATOR_NEW_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_ALLOCATOR_NEW\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_C_HEADERS_C_TRUE}" && test -z "${GLIBCXX_C_HEADERS_C_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_C_HEADERS_C\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_C_HEADERS_C_STD_TRUE}" && test -z "${GLIBCXX_C_HEADERS_C_STD_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_C_HEADERS_C_STD\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_C_HEADERS_C_GLOBAL_TRUE}" && test -z "${GLIBCXX_C_HEADERS_C_GLOBAL_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_C_HEADERS_C_GLOBAL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_C_HEADERS_COMPATIBILITY_TRUE}" && test -z "${GLIBCXX_C_HEADERS_COMPATIBILITY_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_C_HEADERS_COMPATIBILITY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_BUILD_DEBUG_TRUE}" && test -z "${GLIBCXX_BUILD_DEBUG_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_BUILD_DEBUG\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_EXTERN_TEMPLATE_TRUE}" && test -z "${ENABLE_EXTERN_TEMPLATE_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_EXTERN_TEMPLATE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_PYTHONDIR_TRUE}" && test -z "${ENABLE_PYTHONDIR_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_PYTHONDIR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_WERROR_TRUE}" && test -z "${ENABLE_WERROR_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_WERROR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${VTV_CYGMIN_TRUE}" && test -z "${VTV_CYGMIN_FALSE}"; then
+  as_fn_error $? "conditional \"VTV_CYGMIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_VTABLE_VERIFY_TRUE}" && test -z "${ENABLE_VTABLE_VERIFY_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_VTABLE_VERIFY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYMVERS_TRUE}" && test -z "${ENABLE_SYMVERS_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYMVERS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYMVERS_GNU_TRUE}" && test -z "${ENABLE_SYMVERS_GNU_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYMVERS_GNU\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYMVERS_GNU_NAMESPACE_TRUE}" && test -z "${ENABLE_SYMVERS_GNU_NAMESPACE_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYMVERS_GNU_NAMESPACE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYMVERS_DARWIN_TRUE}" && test -z "${ENABLE_SYMVERS_DARWIN_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYMVERS_DARWIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYMVERS_SUN_TRUE}" && test -z "${ENABLE_SYMVERS_SUN_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYMVERS_SUN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_VISIBILITY_TRUE}" && test -z "${ENABLE_VISIBILITY_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_VISIBILITY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_DUAL_ABI_TRUE}" && test -z "${ENABLE_DUAL_ABI_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_DUAL_ABI\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_CXX11_ABI_TRUE}" && test -z "${ENABLE_CXX11_ABI_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_CXX11_ABI\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_LDBL_COMPAT_TRUE}" && test -z "${GLIBCXX_LDBL_COMPAT_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_LDBL_COMPAT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GLIBCXX_LDBL_ALT128_COMPAT_TRUE}" && test -z "${GLIBCXX_LDBL_ALT128_COMPAT_FALSE}"; then
+  as_fn_error $? "conditional \"GLIBCXX_LDBL_ALT128_COMPAT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_FILESYSTEM_TS_TRUE}" && test -z "${ENABLE_FILESYSTEM_TS_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_FILESYSTEM_TS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_BACKTRACE_TRUE}" && test -z "${ENABLE_BACKTRACE_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_BACKTRACE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_INFO_TRUE}" && test -z "${BUILD_INFO_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_INFO\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_EPUB_TRUE}" && test -z "${BUILD_EPUB_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_EPUB\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_XML_TRUE}" && test -z "${BUILD_XML_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_XML\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HTML_TRUE}" && test -z "${BUILD_HTML_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HTML\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_MAN_TRUE}" && test -z "${BUILD_MAN_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_MAN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_PDF_TRUE}" && test -z "${BUILD_PDF_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_PDF\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${INCLUDE_DIR_NOTPARALLEL_TRUE}" && test -z "${INCLUDE_DIR_NOTPARALLEL_FALSE}"; then
+  as_fn_error $? "conditional \"INCLUDE_DIR_NOTPARALLEL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in @%:@(
+  *posix*) :
+    set -o posix ;; @%:@(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in @%:@(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in @%:@((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+@%:@ as_fn_error STATUS ERROR [LINENO LOG_FD]
+@%:@ ----------------------------------------
+@%:@ Output "`basename @S|@0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+@%:@ provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+@%:@ script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} @%:@ as_fn_error
+
+
+@%:@ as_fn_set_status STATUS
+@%:@ -----------------------
+@%:@ Set @S|@? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} @%:@ as_fn_set_status
+
+@%:@ as_fn_exit STATUS
+@%:@ -----------------
+@%:@ Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} @%:@ as_fn_exit
+
+@%:@ as_fn_unset VAR
+@%:@ ---------------
+@%:@ Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+@%:@ as_fn_append VAR VALUE
+@%:@ ----------------------
+@%:@ Append the text in VALUE to the end of the definition contained in VAR. Take
+@%:@ advantage of any shell optimizations that allow amortized linear growth over
+@%:@ repeated appends, instead of the typical quadratic growth present in naive
+@%:@ implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+@%:@ as_fn_arith ARG...
+@%:@ ------------------
+@%:@ Perform arithmetic evaluation on the ARGs, and store the result in the
+@%:@ global @S|@as_val. Take advantage of shells that can avoid forks. The arguments
+@%:@ must be portable across @S|@(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in @%:@(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+@%:@ as_fn_mkdir_p
+@%:@ -------------
+@%:@ Create "@S|@as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} @%:@ as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+@%:@ as_fn_executable_p FILE
+@%:@ -----------------------
+@%:@ Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} @%:@ as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by package-unused $as_me version-unused, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE] 
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE] 
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to the package provider."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+package-unused config.status version-unused
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../@%:@@%:@ /;s/...$/ @%:@@%:@/;p;x;p;x' <<_ASBOX
+@%:@@%:@ Running $as_me. @%:@@%:@
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+
+srcdir="$srcdir"
+host="$host"
+target="$target"
+with_multisubdir="$with_multisubdir"
+with_multisrctop="$with_multisrctop"
+with_target_subdir="$with_target_subdir"
+ac_configure_args="${multilib_arg} ${ac_configure_args}"
+multi_basedir="$multi_basedir"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+CC="$CC"
+CXX="$CXX"
+GFORTRAN="$GFORTRAN"
+GDC="$GDC"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_ld='`$ECHO "$hardcode_libdir_flag_spec_ld" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+fix_srcfile_path='`$ECHO "$fix_srcfile_path" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_ld_CXX='`$ECHO "$hardcode_libdir_flag_spec_ld_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+fix_srcfile_path_CXX='`$ECHO "$fix_srcfile_path_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in SHELL \
+ECHO \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+OBJDUMP \
+deplibs_check_method \
+file_magic_cmd \
+AR \
+AR_FLAGS \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_wl \
+lt_prog_compiler_pic \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_flag_spec_ld \
+hardcode_libdir_separator \
+fix_srcfile_path \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_flag_spec_ld_CXX \
+hardcode_libdir_separator_CXX \
+fix_srcfile_path_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+sys_lib_dlsearch_path_spec \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+xsi_shell='$xsi_shell'
+lt_shell_append='$lt_shell_append'
+
+# See if we are running on zsh, and set the options which allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    TIMESTAMP='$TIMESTAMP'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+
+
+GCC="$GCC"
+CC="$CC"
+acx_cv_header_stdint="$acx_cv_header_stdint"
+acx_cv_type_int8_t="$acx_cv_type_int8_t"
+acx_cv_type_int16_t="$acx_cv_type_int16_t"
+acx_cv_type_int32_t="$acx_cv_type_int32_t"
+acx_cv_type_int64_t="$acx_cv_type_int64_t"
+acx_cv_type_intptr_t="$acx_cv_type_intptr_t"
+ac_cv_type_uintmax_t="$ac_cv_type_uintmax_t"
+ac_cv_type_uintptr_t="$ac_cv_type_uintptr_t"
+ac_cv_type_uint64_t="$ac_cv_type_uint64_t"
+ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t"
+ac_cv_type_u_int32_t="$ac_cv_type_u_int32_t"
+ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t"
+ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t"
+ac_cv_sizeof_void_p="$ac_cv_sizeof_void_p"
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+    "default-1") CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "include/gstdint.h") CONFIG_COMMANDS="$CONFIG_COMMANDS include/gstdint.h" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "scripts/testsuite_flags") CONFIG_FILES="$CONFIG_FILES scripts/testsuite_flags" ;;
+    "scripts/extract_symvers") CONFIG_FILES="$CONFIG_FILES scripts/extract_symvers" ;;
+    "doc/xsl/customization.xsl") CONFIG_FILES="$CONFIG_FILES doc/xsl/customization.xsl" ;;
+    "src/libbacktrace/backtrace-supported.h") CONFIG_FILES="$CONFIG_FILES src/libbacktrace/backtrace-supported.h" ;;
+    "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
+    "libsupc++/Makefile") CONFIG_FILES="$CONFIG_FILES libsupc++/Makefile" ;;
+    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+    "src/c++98/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++98/Makefile" ;;
+    "src/c++11/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++11/Makefile" ;;
+    "src/c++17/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++17/Makefile" ;;
+    "src/c++20/Makefile") CONFIG_FILES="$CONFIG_FILES src/c++20/Makefile" ;;
+    "src/filesystem/Makefile") CONFIG_FILES="$CONFIG_FILES src/filesystem/Makefile" ;;
+    "src/libbacktrace/Makefile") CONFIG_FILES="$CONFIG_FILES src/libbacktrace/Makefile" ;;
+    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+    "po/Makefile") CONFIG_FILES="$CONFIG_FILES po/Makefile" ;;
+    "testsuite/Makefile") CONFIG_FILES="$CONFIG_FILES testsuite/Makefile" ;;
+    "python/Makefile") CONFIG_FILES="$CONFIG_FILES python/Makefile" ;;
+    "generate-headers") CONFIG_COMMANDS="$CONFIG_COMMANDS generate-headers" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+  
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "default-1":C) 
+# Only add multilib support code if we just rebuilt the top-level
+# Makefile.
+case " $CONFIG_FILES " in
+ *" Makefile "*)
+   ac_file=Makefile . ${multi_basedir}/config-ml.in
+   ;;
+esac ;;
+    "libtool":C) 
+    
+    # See if we are running on zsh, and set the options which allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}" ; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile="${ofile}T"
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+
+# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+# The names of the tagged configurations supported by this script.
+available_tags="CXX "
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# An object symbol dumper.
+OBJDUMP=$lt_OBJDUMP
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method == "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# The archiver.
+AR=$lt_AR
+AR_FLAGS=$lt_AR_FLAGS
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# If ld is used when linking, flag to hardcode \$libdir into a binary
+# during linking.  This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path=$lt_fix_srcfile_path
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+  
+ltmain="$ac_aux_dir/ltmain.sh"
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
+    || (rm -f "$cfgfile"; exit 1)
+
+  case $xsi_shell in
+  yes)
+    cat << \_LT_EOF >> "$cfgfile"
+
+# func_dirname file append nondir_replacement
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+func_dirname ()
+{
+  case ${1} in
+    */*) func_dirname_result="${1%/*}${2}" ;;
+    *  ) func_dirname_result="${3}" ;;
+  esac
+}
+
+# func_basename file
+func_basename ()
+{
+  func_basename_result="${1##*/}"
+}
+
+# func_dirname_and_basename file append nondir_replacement
+# perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# Implementation must be kept synchronized with func_dirname
+# and func_basename. For efficiency, we do not delegate to
+# those functions but instead duplicate the functionality here.
+func_dirname_and_basename ()
+{
+  case ${1} in
+    */*) func_dirname_result="${1%/*}${2}" ;;
+    *  ) func_dirname_result="${3}" ;;
+  esac
+  func_basename_result="${1##*/}"
+}
+
+# func_stripname prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+func_stripname ()
+{
+  # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+  # positional parameters, so assign one to ordinary parameter first.
+  func_stripname_result=${3}
+  func_stripname_result=${func_stripname_result#"${1}"}
+  func_stripname_result=${func_stripname_result%"${2}"}
+}
+
+# func_opt_split
+func_opt_split ()
+{
+  func_opt_split_opt=${1%%=*}
+  func_opt_split_arg=${1#*=}
+}
+
+# func_lo2o object
+func_lo2o ()
+{
+  case ${1} in
+    *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
+    *)    func_lo2o_result=${1} ;;
+  esac
+}
+
+# func_xform libobj-or-source
+func_xform ()
+{
+  func_xform_result=${1%.*}.lo
+}
+
+# func_arith arithmetic-term...
+func_arith ()
+{
+  func_arith_result=$(( $* ))
+}
+
+# func_len string
+# STRING may not start with a hyphen.
+func_len ()
+{
+  func_len_result=${#1}
+}
+
+_LT_EOF
+    ;;
+  *) # Bourne compatible functions.
+    cat << \_LT_EOF >> "$cfgfile"
+
+# func_dirname file append nondir_replacement
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+func_dirname ()
+{
+  # Extract subdirectory from the argument.
+  func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
+  if test "X$func_dirname_result" = "X${1}"; then
+    func_dirname_result="${3}"
+  else
+    func_dirname_result="$func_dirname_result${2}"
+  fi
+}
+
+# func_basename file
+func_basename ()
+{
+  func_basename_result=`$ECHO "${1}" | $SED "$basename"`
+}
+
+
+# func_stripname prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+# func_strip_suffix prefix name
+func_stripname ()
+{
+  case ${2} in
+    .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+    *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+  esac
+}
+
+# sed scripts:
+my_sed_long_opt='1s/^\(-[^=]*\)=.*/\1/;q'
+my_sed_long_arg='1s/^-[^=]*=//'
+
+# func_opt_split
+func_opt_split ()
+{
+  func_opt_split_opt=`$ECHO "${1}" | $SED "$my_sed_long_opt"`
+  func_opt_split_arg=`$ECHO "${1}" | $SED "$my_sed_long_arg"`
+}
+
+# func_lo2o object
+func_lo2o ()
+{
+  func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
+}
+
+# func_xform libobj-or-source
+func_xform ()
+{
+  func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
+}
+
+# func_arith arithmetic-term...
+func_arith ()
+{
+  func_arith_result=`expr "$@"`
+}
+
+# func_len string
+# STRING may not start with a hyphen.
+func_len ()
+{
+  func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+}
+
+_LT_EOF
+esac
+
+case $lt_shell_append in
+  yes)
+    cat << \_LT_EOF >> "$cfgfile"
+
+# func_append var value
+# Append VALUE to the end of shell variable VAR.
+func_append ()
+{
+  eval "$1+=\$2"
+}
+_LT_EOF
+    ;;
+  *)
+    cat << \_LT_EOF >> "$cfgfile"
+
+# func_append var value
+# Append VALUE to the end of shell variable VAR.
+func_append ()
+{
+  eval "$1=\$$1\$2"
+}
+
+_LT_EOF
+    ;;
+  esac
+
+
+  sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
+    || (rm -f "$cfgfile"; exit 1)
+
+  mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# If ld is used when linking, flag to hardcode \$libdir into a binary
+# during linking.  This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path=$lt_fix_srcfile_path_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
+ ;;
+    "include/gstdint.h":C) 
+if test "$GCC" = yes; then
+  echo "/* generated for " `$CC --version | sed 1q` "*/" > tmp-stdint.h
+else
+  echo "/* generated for $CC */" > tmp-stdint.h
+fi
+
+sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+  #ifndef GCC_GENERATED_STDINT_H
+  #define GCC_GENERATED_STDINT_H 1
+
+  #include <sys/types.h>
+EOF
+
+if test "$acx_cv_header_stdint" != stdint.h; then
+  echo "#include <stddef.h>" >> tmp-stdint.h
+fi
+if test "$acx_cv_header_stdint" != stddef.h; then
+  echo "#include <$acx_cv_header_stdint>" >> tmp-stdint.h
+fi
+
+sed 's/^ *//' >> tmp-stdint.h <<EOF
+  /* glibc uses these symbols as guards to prevent redefinitions.  */
+  #ifdef __int8_t_defined
+  #define _INT8_T
+  #define _INT16_T
+  #define _INT32_T
+  #endif
+  #ifdef __uint32_t_defined
+  #define _UINT32_T
+  #endif
+
+EOF
+
+# ----------------- done header, emit basic int types -------------
+if test "$acx_cv_header_stdint" = stddef.h; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    #ifndef _UINT8_T
+    #define _UINT8_T
+    #ifndef __uint8_t_defined
+    #define __uint8_t_defined
+    #ifndef uint8_t
+    typedef unsigned $acx_cv_type_int8_t uint8_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _UINT16_T
+    #define _UINT16_T
+    #ifndef __uint16_t_defined
+    #define __uint16_t_defined
+    #ifndef uint16_t
+    typedef unsigned $acx_cv_type_int16_t uint16_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _UINT32_T
+    #define _UINT32_T
+    #ifndef __uint32_t_defined
+    #define __uint32_t_defined
+    #ifndef uint32_t
+    typedef unsigned $acx_cv_type_int32_t uint32_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _INT8_T
+    #define _INT8_T
+    #ifndef __int8_t_defined
+    #define __int8_t_defined
+    #ifndef int8_t
+    typedef $acx_cv_type_int8_t int8_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _INT16_T
+    #define _INT16_T
+    #ifndef __int16_t_defined
+    #define __int16_t_defined
+    #ifndef int16_t
+    typedef $acx_cv_type_int16_t int16_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _INT32_T
+    #define _INT32_T
+    #ifndef __int32_t_defined
+    #define __int32_t_defined
+    #ifndef int32_t
+    typedef $acx_cv_type_int32_t int32_t;
+    #endif
+    #endif
+    #endif
+EOF
+elif test "$ac_cv_type_u_int32_t" = yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* int8_t int16_t int32_t defined by inet code, we do the u_intXX types */
+    #ifndef _INT8_T
+    #define _INT8_T
+    #endif
+    #ifndef _INT16_T
+    #define _INT16_T
+    #endif
+    #ifndef _INT32_T
+    #define _INT32_T
+    #endif
+
+    #ifndef _UINT8_T
+    #define _UINT8_T
+    #ifndef __uint8_t_defined
+    #define __uint8_t_defined
+    #ifndef uint8_t
+    typedef u_int8_t uint8_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _UINT16_T
+    #define _UINT16_T
+    #ifndef __uint16_t_defined
+    #define __uint16_t_defined
+    #ifndef uint16_t
+    typedef u_int16_t uint16_t;
+    #endif
+    #endif
+    #endif
+
+    #ifndef _UINT32_T
+    #define _UINT32_T
+    #ifndef __uint32_t_defined
+    #define __uint32_t_defined
+    #ifndef uint32_t
+    typedef u_int32_t uint32_t;
+    #endif
+    #endif
+    #endif
+EOF
+else
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* Some systems have guard macros to prevent redefinitions, define them.  */
+    #ifndef _INT8_T
+    #define _INT8_T
+    #endif
+    #ifndef _INT16_T
+    #define _INT16_T
+    #endif
+    #ifndef _INT32_T
+    #define _INT32_T
+    #endif
+    #ifndef _UINT8_T
+    #define _UINT8_T
+    #endif
+    #ifndef _UINT16_T
+    #define _UINT16_T
+    #endif
+    #ifndef _UINT32_T
+    #define _UINT32_T
+    #endif
+EOF
+fi
+
+# ------------- done basic int types, emit int64_t types ------------
+if test "$ac_cv_type_uint64_t" = yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* system headers have good uint64_t and int64_t */
+    #ifndef _INT64_T
+    #define _INT64_T
+    #endif
+    #ifndef _UINT64_T
+    #define _UINT64_T
+    #endif
+EOF
+elif test "$ac_cv_type_u_int64_t" = yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* system headers have an u_int64_t (and int64_t) */
+    #ifndef _INT64_T
+    #define _INT64_T
+    #endif
+    #ifndef _UINT64_T
+    #define _UINT64_T
+    #ifndef __uint64_t_defined
+    #define __uint64_t_defined
+    #ifndef uint64_t
+    typedef u_int64_t uint64_t;
+    #endif
+    #endif
+    #endif
+EOF
+elif test -n "$acx_cv_type_int64_t"; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* architecture has a 64-bit type, $acx_cv_type_int64_t */
+    #ifndef _INT64_T
+    #define _INT64_T
+    #ifndef int64_t
+    typedef $acx_cv_type_int64_t int64_t;
+    #endif
+    #endif
+    #ifndef _UINT64_T
+    #define _UINT64_T
+    #ifndef __uint64_t_defined
+    #define __uint64_t_defined
+    #ifndef uint64_t
+    typedef unsigned $acx_cv_type_int64_t uint64_t;
+    #endif
+    #endif
+    #endif
+EOF
+else
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* some common heuristics for int64_t, using compiler-specific tests */
+    #if defined __STDC_VERSION__ && (__STDC_VERSION__-0) >= 199901L
+    #ifndef _INT64_T
+    #define _INT64_T
+    #ifndef __int64_t_defined
+    #ifndef int64_t
+    typedef long long int64_t;
+    #endif
+    #endif
+    #endif
+    #ifndef _UINT64_T
+    #define _UINT64_T
+    #ifndef uint64_t
+    typedef unsigned long long uint64_t;
+    #endif
+    #endif
+
+    #elif defined __GNUC__ && defined (__STDC__) && __STDC__-0
+    /* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and
+       does not implement __extension__.  But that compiler doesn't define
+       __GNUC_MINOR__.  */
+    # if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__)
+    # define __extension__
+    # endif
+
+    # ifndef _INT64_T
+    # define _INT64_T
+    # ifndef int64_t
+    __extension__ typedef long long int64_t;
+    # endif
+    # endif
+    # ifndef _UINT64_T
+    # define _UINT64_T
+    # ifndef uint64_t
+    __extension__ typedef unsigned long long uint64_t;
+    # endif
+    # endif
+
+    #elif !defined __STRICT_ANSI__
+    # if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__
+
+    #  ifndef _INT64_T
+    #  define _INT64_T
+    #  ifndef int64_t
+    typedef __int64 int64_t;
+    #  endif
+    #  endif
+    #  ifndef _UINT64_T
+    #  define _UINT64_T
+    #  ifndef uint64_t
+    typedef unsigned __int64 uint64_t;
+    #  endif
+    #  endif
+    # endif /* compiler */
+
+    #endif /* ANSI version */
+EOF
+fi
+
+# ------------- done int64_t types, emit intptr types ------------
+if test "$ac_cv_type_uintptr_t" != yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* Define intptr_t based on sizeof(void*) = $ac_cv_sizeof_void_p */
+    #ifndef __uintptr_t_defined
+    #ifndef uintptr_t
+    typedef u$acx_cv_type_intptr_t uintptr_t;
+    #endif
+    #endif
+    #ifndef __intptr_t_defined
+    #ifndef intptr_t
+    typedef $acx_cv_type_intptr_t  intptr_t;
+    #endif
+    #endif
+EOF
+fi
+
+# ------------- done intptr types, emit int_least types ------------
+if test "$ac_cv_type_int_least32_t" != yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* Define int_least types */
+    typedef int8_t     int_least8_t;
+    typedef int16_t    int_least16_t;
+    typedef int32_t    int_least32_t;
+    #ifdef _INT64_T
+    typedef int64_t    int_least64_t;
+    #endif
+
+    typedef uint8_t    uint_least8_t;
+    typedef uint16_t   uint_least16_t;
+    typedef uint32_t   uint_least32_t;
+    #ifdef _UINT64_T
+    typedef uint64_t   uint_least64_t;
+    #endif
+EOF
+fi
+
+# ------------- done intptr types, emit int_fast types ------------
+if test "$ac_cv_type_int_fast32_t" != yes; then
+      sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* Define int_fast types.  short is often slow */
+    typedef int8_t       int_fast8_t;
+    typedef int          int_fast16_t;
+    typedef int32_t      int_fast32_t;
+    #ifdef _INT64_T
+    typedef int64_t      int_fast64_t;
+    #endif
+
+    typedef uint8_t      uint_fast8_t;
+    typedef unsigned int uint_fast16_t;
+    typedef uint32_t     uint_fast32_t;
+    #ifdef _UINT64_T
+    typedef uint64_t     uint_fast64_t;
+    #endif
+EOF
+fi
+
+if test "$ac_cv_type_uintmax_t" != yes; then
+  sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+    /* Define intmax based on what we found */
+    #ifndef intmax_t
+    #ifdef _INT64_T
+    typedef int64_t       intmax_t;
+    #else
+    typedef long          intmax_t;
+    #endif
+    #endif
+    #ifndef uintmax_t
+    #ifdef _UINT64_T
+    typedef uint64_t      uintmax_t;
+    #else
+    typedef unsigned long uintmax_t;
+    #endif
+    #endif
+EOF
+fi
+
+sed 's/^ *//' >> tmp-stdint.h <<EOF
+
+  #endif /* GCC_GENERATED_STDINT_H */
+EOF
+
+if test -r include/gstdint.h && cmp -s tmp-stdint.h include/gstdint.h; then
+  rm -f tmp-stdint.h
+else
+  mv -f tmp-stdint.h include/gstdint.h
+fi
+
+ ;;
+    "scripts/testsuite_flags":F) chmod +x scripts/testsuite_flags ;;
+    "scripts/extract_symvers":F) chmod +x scripts/extract_symvers ;;
+    "include/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "libsupc++/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/c++98/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/c++11/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/c++17/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/c++20/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/filesystem/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "src/libbacktrace/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "doc/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "po/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "testsuite/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "python/Makefile":F) cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   { ml_norecursion=; unset ml_norecursion;}
+ ;;
+    "generate-headers":C) (cd include && ${MAKE-make} pch_build= ) ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff -ruN gcc-12.2.0/libstdc++-v3/autom4te.cache/requests gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/requests
--- gcc-12.2.0/libstdc++-v3/autom4te.cache/requests	1970-01-01 02:00:00.000000000 +0200
+++ gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/requests	2023-04-05 21:57:18.136349251 +0300
@@ -0,0 +1,78 @@
+# This file was generated.
+# It contains the lists of macros which have been traced.
+# It can be safely removed.
+
+@request = (
+             bless( [
+                      '0',
+                      1,
+                      [
+                        '/usr/share/autoconf'
+                      ],
+                      [
+                        '/usr/share/autoconf/autoconf/autoconf.m4f',
+                        'aclocal.m4',
+                        'configure.ac'
+                      ],
+                      {
+                        'AM_PROG_CC_C_O' => 1,
+                        '_AM_COND_ELSE' => 1,
+                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_PROG_CXX_C_O' => 1,
+                        'AC_SUBST_TRACE' => 1,
+                        'AM_PROG_FC_C_O' => 1,
+                        'include' => 1,
+                        'LT_CONFIG_LTDL_DIR' => 1,
+                        'AM_MAINTAINER_MODE' => 1,
+                        'AM_XGETTEXT_OPTION' => 1,
+                        'm4_sinclude' => 1,
+                        'AM_PROG_AR' => 1,
+                        'AM_INIT_AUTOMAKE' => 1,
+                        'AC_FC_SRCEXT' => 1,
+                        'AC_CONFIG_AUX_DIR' => 1,
+                        'AM_CONDITIONAL' => 1,
+                        'AC_CANONICAL_TARGET' => 1,
+                        'AC_LIBSOURCE' => 1,
+                        'sinclude' => 1,
+                        'AC_CONFIG_LINKS' => 1,
+                        'AC_FC_PP_DEFINE' => 1,
+                        'AM_MAKEFILE_INCLUDE' => 1,
+                        'm4_include' => 1,
+                        '_AM_COND_ENDIF' => 1,
+                        '_AM_COND_IF' => 1,
+                        'm4_pattern_forbid' => 1,
+                        'AC_CANONICAL_HOST' => 1,
+                        '_m4_warn' => 1,
+                        '_LT_AC_TAGCONFIG' => 1,
+                        'AM_AUTOMAKE_VERSION' => 1,
+                        '_AM_MAKEFILE_INCLUDE' => 1,
+                        'AM_POT_TOOLS' => 1,
+                        'AC_DEFINE_TRACE_LITERAL' => 1,
+                        'AC_PROG_LIBTOOL' => 1,
+                        'AC_REQUIRE_AUX_FILE' => 1,
+                        'AC_SUBST' => 1,
+                        'AM_GNU_GETTEXT' => 1,
+                        'AC_FC_PP_SRCEXT' => 1,
+                        'AC_CONFIG_HEADERS' => 1,
+                        'AM_NLS' => 1,
+                        'AC_CONFIG_FILES' => 1,
+                        'AC_INIT' => 1,
+                        '_AM_SUBST_NOTMAKE' => 1,
+                        'AC_CANONICAL_BUILD' => 1,
+                        'AC_CONFIG_LIBOBJ_DIR' => 1,
+                        'AC_FC_FREEFORM' => 1,
+                        'AM_ENABLE_MULTILIB' => 1,
+                        'AH_OUTPUT' => 1,
+                        'AC_CONFIG_SUBDIRS' => 1,
+                        'LT_SUPPORTED_TAG' => 1,
+                        'AM_PROG_MOC' => 1,
+                        'AM_SILENT_RULES' => 1,
+                        'LT_INIT' => 1,
+                        'AM_PROG_F77_C_O' => 1,
+                        'm4_pattern_allow' => 1,
+                        'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
+                        'AM_PATH_GUILE' => 1
+                      }
+                    ], 'Autom4te::Request' )
+           );
+
diff -ruN gcc-12.2.0/libstdc++-v3/autom4te.cache/traces.0 gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/traces.0
--- gcc-12.2.0/libstdc++-v3/autom4te.cache/traces.0	1970-01-01 02:00:00.000000000 +0200
+++ gcc-12.2.0-banan/libstdc++-v3/autom4te.cache/traces.0	2023-04-05 21:57:17.349695468 +0300
@@ -0,0 +1,43414 @@
+m4trace:aclocal.m4:855: -1- m4_include([../config/acx.m4])
+m4trace:aclocal.m4:856: -1- m4_include([../config/enable.m4])
+m4trace:aclocal.m4:857: -1- m4_include([../config/futex.m4])
+m4trace:aclocal.m4:858: -1- m4_include([../config/hwcaps.m4])
+m4trace:aclocal.m4:859: -1- m4_include([../config/iconv.m4])
+m4trace:aclocal.m4:860: -1- m4_include([../config/lead-dot.m4])
+m4trace:aclocal.m4:861: -1- m4_include([../config/lib-ld.m4])
+m4trace:aclocal.m4:862: -1- m4_include([../config/lib-link.m4])
+m4trace:aclocal.m4:863: -1- m4_include([../config/lib-prefix.m4])
+m4trace:aclocal.m4:864: -1- m4_include([../config/lthostflags.m4])
+m4trace:aclocal.m4:865: -1- m4_include([../config/multi.m4])
+m4trace:aclocal.m4:866: -1- m4_include([../config/no-executables.m4])
+m4trace:aclocal.m4:867: -1- m4_include([../config/override.m4])
+m4trace:aclocal.m4:868: -1- m4_include([../config/stdint.m4])
+m4trace:aclocal.m4:869: -1- m4_include([../config/toolexeclibdir.m4])
+m4trace:aclocal.m4:870: -1- m4_include([../config/unwind_ipinfo.m4])
+m4trace:aclocal.m4:871: -1- m4_include([../libtool.m4])
+m4trace:aclocal.m4:872: -1- m4_include([../ltoptions.m4])
+m4trace:aclocal.m4:873: -1- m4_include([../ltsugar.m4])
+m4trace:aclocal.m4:874: -1- m4_include([../ltversion.m4])
+m4trace:aclocal.m4:875: -1- m4_include([../lt~obsolete.m4])
+m4trace:aclocal.m4:876: -1- m4_include([crossconfig.m4])
+m4trace:aclocal.m4:877: -1- m4_include([linkage.m4])
+m4trace:aclocal.m4:878: -1- m4_include([acinclude.m4])
+m4trace:acinclude.m4:5076: -1- m4_include([../config/gc++filt.m4])
+m4trace:acinclude.m4:5077: -1- m4_include([../config/tls.m4])
+m4trace:../config/tls.m4:109: -1- AC_DEFINE_TRACE_LITERAL([HAVE_CC_TLS])
+m4trace:../config/tls.m4:109: -1- m4_pattern_allow([^HAVE_CC_TLS$])
+m4trace:../config/tls.m4:109: -1- AH_OUTPUT([HAVE_CC_TLS], [/* Define to 1 if the target assembler supports thread-local storage. */
+@%:@undef HAVE_CC_TLS])
+m4trace:acinclude.m4:5078: -1- m4_include([../config/gthr.m4])
+m4trace:acinclude.m4:5079: -1- m4_include([../config/cet.m4])
+m4trace:configure.ac:3: -1- AC_INIT([package-unused], [version-unused], [], [libstdc++])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([^_?A[CHUM]_])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([_AC_])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([^LIBOBJS$], [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS'])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^AS_FLAGS$])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([^_?m4_])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([^dnl$])
+m4trace:configure.ac:3: -1- m4_pattern_forbid([^_?AS_])
+m4trace:configure.ac:3: -1- AC_SUBST([SHELL])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([SHELL])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^SHELL$])
+m4trace:configure.ac:3: -1- AC_SUBST([PATH_SEPARATOR])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PATH_SEPARATOR])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PATH_SEPARATOR$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_NAME], [m4_ifdef([AC_PACKAGE_NAME],      ['AC_PACKAGE_NAME'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_NAME])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_NAME$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_TARNAME], [m4_ifdef([AC_PACKAGE_TARNAME],   ['AC_PACKAGE_TARNAME'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_TARNAME])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_TARNAME$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_VERSION], [m4_ifdef([AC_PACKAGE_VERSION],   ['AC_PACKAGE_VERSION'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_VERSION])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_VERSION$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_STRING], [m4_ifdef([AC_PACKAGE_STRING],    ['AC_PACKAGE_STRING'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_STRING])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_STRING$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_BUGREPORT], [m4_ifdef([AC_PACKAGE_BUGREPORT], ['AC_PACKAGE_BUGREPORT'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_BUGREPORT])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_BUGREPORT$])
+m4trace:configure.ac:3: -1- AC_SUBST([PACKAGE_URL], [m4_ifdef([AC_PACKAGE_URL],       ['AC_PACKAGE_URL'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([PACKAGE_URL])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_URL$])
+m4trace:configure.ac:3: -1- AC_SUBST([exec_prefix], [NONE])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([exec_prefix])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^exec_prefix$])
+m4trace:configure.ac:3: -1- AC_SUBST([prefix], [NONE])
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+m4trace:configure.ac:3: -1- AC_SUBST([program_transform_name], [s,x,x,])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([program_transform_name])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^program_transform_name$])
+m4trace:configure.ac:3: -1- AC_SUBST([bindir], ['${exec_prefix}/bin'])
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+m4trace:configure.ac:3: -1- m4_pattern_allow([^bindir$])
+m4trace:configure.ac:3: -1- AC_SUBST([sbindir], ['${exec_prefix}/sbin'])
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+m4trace:configure.ac:3: -1- m4_pattern_allow([^sbindir$])
+m4trace:configure.ac:3: -1- AC_SUBST([libexecdir], ['${exec_prefix}/libexec'])
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+m4trace:configure.ac:3: -1- m4_pattern_allow([^libexecdir$])
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+m4trace:configure.ac:3: -1- AC_SUBST([sysconfdir], ['${prefix}/etc'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([sysconfdir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^sysconfdir$])
+m4trace:configure.ac:3: -1- AC_SUBST([sharedstatedir], ['${prefix}/com'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([sharedstatedir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^sharedstatedir$])
+m4trace:configure.ac:3: -1- AC_SUBST([localstatedir], ['${prefix}/var'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([localstatedir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^localstatedir$])
+m4trace:configure.ac:3: -1- AC_SUBST([includedir], ['${prefix}/include'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([includedir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^includedir$])
+m4trace:configure.ac:3: -1- AC_SUBST([oldincludedir], ['/usr/include'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([oldincludedir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^oldincludedir$])
+m4trace:configure.ac:3: -1- AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],
+				     ['${datarootdir}/doc/${PACKAGE_TARNAME}'],
+				     ['${datarootdir}/doc/${PACKAGE}'])])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([docdir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^docdir$])
+m4trace:configure.ac:3: -1- AC_SUBST([infodir], ['${datarootdir}/info'])
+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([infodir])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^infodir$])
+m4trace:configure.ac:3: -1- AC_SUBST([htmldir], ['${docdir}'])
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+m4trace:configure.ac:3: -1- m4_pattern_allow([^htmldir$])
+m4trace:configure.ac:3: -1- AC_SUBST([dvidir], ['${docdir}'])
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+m4trace:configure.ac:3: -1- m4_pattern_allow([^dvidir$])
+m4trace:configure.ac:3: -1- AC_SUBST([pdfdir], ['${docdir}'])
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+m4trace:configure.ac:3: -1- AC_SUBST([psdir], ['${docdir}'])
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+m4trace:configure.ac:3: -1- AC_SUBST([localedir], ['${datarootdir}/locale'])
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+m4trace:configure.ac:3: -1- AC_SUBST([mandir], ['${datarootdir}/man'])
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+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_NAME])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_NAME$])
+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_NAME], [/* Define to the full name of this package. */
+@%:@undef PACKAGE_NAME])
+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_TARNAME])
+m4trace:configure.ac:3: -1- m4_pattern_allow([^PACKAGE_TARNAME$])
+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_TARNAME], [/* Define to the one symbol short name of this package. */
+@%:@undef PACKAGE_TARNAME])
+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_VERSION])
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+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_VERSION], [/* Define to the version of this package. */
+@%:@undef PACKAGE_VERSION])
+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_STRING])
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+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_STRING], [/* Define to the full name and version of this package. */
+@%:@undef PACKAGE_STRING])
+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_BUGREPORT])
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+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_BUGREPORT], [/* Define to the address where bug reports for this package should be sent. */
+@%:@undef PACKAGE_BUGREPORT])
+m4trace:configure.ac:3: -1- AC_DEFINE_TRACE_LITERAL([PACKAGE_URL])
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+m4trace:configure.ac:3: -1- AH_OUTPUT([PACKAGE_URL], [/* Define to the home page for this package. */
+@%:@undef PACKAGE_URL])
+m4trace:configure.ac:3: -1- AC_SUBST([DEFS])
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+m4trace:configure.ac:3: -1- AC_SUBST_TRACE([ECHO_N])
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+m4trace:configure.ac:14: -1- _m4_warn([obsolete], [The macro `AC_OUTPUT_COMMANDS' is obsolete.
+You should run autoupdate.], [../../lib/autoconf/status.m4:1026: AC_OUTPUT_COMMANDS is expanded from...
+../config/multi.m4:14: AM_ENABLE_MULTILIB is expanded from...
+configure.ac:14: the top level])
+m4trace:configure.ac:30: -1- AC_CANONICAL_SYSTEM
+m4trace:configure.ac:30: -1- _m4_warn([obsolete], [The macro `AC_CANONICAL_SYSTEM' is obsolete.
+You should run autoupdate.], [../../lib/autoconf/general.m4:1857: AC_CANONICAL_SYSTEM is expanded from...
+configure.ac:30: the top level])
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+m4trace:configure.ac:618: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
+You should run autoupdate.], [../../lib/autoconf/general.m4:207: AC_HELP_STRING is expanded from...
+acinclude.m4:710: GLIBCXX_EXPORT_INSTALL_INFO is expanded from...
+configure.ac:618: the top level])
+m4trace:configure.ac:618: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
+You should run autoupdate.], [../../lib/autoconf/general.m4:207: AC_HELP_STRING is expanded from...
+acinclude.m4:710: GLIBCXX_EXPORT_INSTALL_INFO is expanded from...
+configure.ac:618: the top level])
+m4trace:configure.ac:618: -1- AC_SUBST([glibcxx_prefixdir])
+m4trace:configure.ac:618: -1- AC_SUBST_TRACE([glibcxx_prefixdir])
+m4trace:configure.ac:618: -1- m4_pattern_allow([^glibcxx_prefixdir$])
+m4trace:configure.ac:618: -1- AC_SUBST([gxx_include_dir])
+m4trace:configure.ac:618: -1- AC_SUBST_TRACE([gxx_include_dir])
+m4trace:configure.ac:618: -1- m4_pattern_allow([^gxx_include_dir$])
+m4trace:configure.ac:618: -1- AC_SUBST([glibcxx_toolexecdir])
+m4trace:configure.ac:618: -1- AC_SUBST_TRACE([glibcxx_toolexecdir])
+m4trace:configure.ac:618: -1- m4_pattern_allow([^glibcxx_toolexecdir$])
+m4trace:configure.ac:618: -1- AC_SUBST([glibcxx_toolexeclibdir])
+m4trace:configure.ac:618: -1- AC_SUBST_TRACE([glibcxx_toolexeclibdir])
+m4trace:configure.ac:618: -1- m4_pattern_allow([^glibcxx_toolexeclibdir$])
+m4trace:configure.ac:621: -1- AC_SUBST([GLIBCXX_INCLUDES])
+m4trace:configure.ac:621: -1- AC_SUBST_TRACE([GLIBCXX_INCLUDES])
+m4trace:configure.ac:621: -1- m4_pattern_allow([^GLIBCXX_INCLUDES$])
+m4trace:configure.ac:621: -1- AC_SUBST([TOPLEVEL_INCLUDES])
+m4trace:configure.ac:621: -1- AC_SUBST_TRACE([TOPLEVEL_INCLUDES])
+m4trace:configure.ac:621: -1- m4_pattern_allow([^TOPLEVEL_INCLUDES$])
+m4trace:configure.ac:622: -1- AC_SUBST([OPTIMIZE_CXXFLAGS])
+m4trace:configure.ac:622: -1- AC_SUBST_TRACE([OPTIMIZE_CXXFLAGS])
+m4trace:configure.ac:622: -1- m4_pattern_allow([^OPTIMIZE_CXXFLAGS$])
+m4trace:configure.ac:622: -1- AC_SUBST([WARN_FLAGS])
+m4trace:configure.ac:622: -1- AC_SUBST_TRACE([WARN_FLAGS])
+m4trace:configure.ac:622: -1- m4_pattern_allow([^WARN_FLAGS$])
+m4trace:configure.ac:625: -1- AC_SUBST([get_gcc_base_ver])
+m4trace:configure.ac:625: -1- AC_SUBST_TRACE([get_gcc_base_ver])
+m4trace:configure.ac:625: -1- m4_pattern_allow([^get_gcc_base_ver$])
+m4trace:configure.ac:630: -1- AC_CONFIG_FILES([Makefile])
+m4trace:configure.ac:631: -1- AC_CONFIG_FILES([scripts/testsuite_flags], [chmod +x scripts/testsuite_flags])
+m4trace:configure.ac:632: -1- AC_CONFIG_FILES([scripts/extract_symvers], [chmod +x scripts/extract_symvers])
+m4trace:configure.ac:633: -1- AC_CONFIG_FILES([doc/xsl/customization.xsl])
+m4trace:configure.ac:634: -1- AC_CONFIG_FILES([src/libbacktrace/backtrace-supported.h])
+m4trace:configure.ac:644: -2- _m4_warn([obsolete], [The macro `AC_FOREACH' is obsolete.
+You should run autoupdate.], [../../lib/autoconf/general.m4:194: AC_FOREACH is expanded from...
+configure.ac:644: the top level])
+m4trace:configure.ac:644: -1- AC_CONFIG_FILES([include/Makefile libsupc++/Makefile src/Makefile src/c++98/Makefile src/c++11/Makefile src/c++17/Makefile src/c++20/Makefile src/filesystem/Makefile src/libbacktrace/Makefile doc/Makefile po/Makefile testsuite/Makefile python/Makefile ], [cat > vpsed$$ << \_EOF
+s!`test -f '$<' || echo '$(srcdir)/'`!!
+_EOF
+   sed -f vpsed$$ $ac_file > tmp$$
+   mv tmp$$ $ac_file
+   rm vpsed$$
+   echo 'MULTISUBDIR =' >> $ac_file
+   ml_norecursion=yes
+   . ${multi_basedir}/config-ml.in
+   AS_UNSET([ml_norecursion])
+])
+m4trace:configure.ac:661: -1- AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([LIB@&t@OBJS])
+m4trace:configure.ac:661: -1- m4_pattern_allow([^LIB@&t@OBJS$])
+m4trace:configure.ac:661: -1- AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([LTLIBOBJS])
+m4trace:configure.ac:661: -1- m4_pattern_allow([^LTLIBOBJS$])
+m4trace:configure.ac:661: -1- AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])
+m4trace:configure.ac:661: -1- AC_SUBST([am__EXEEXT_TRUE])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([am__EXEEXT_TRUE])
+m4trace:configure.ac:661: -1- m4_pattern_allow([^am__EXEEXT_TRUE$])
+m4trace:configure.ac:661: -1- AC_SUBST([am__EXEEXT_FALSE])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([am__EXEEXT_FALSE])
+m4trace:configure.ac:661: -1- m4_pattern_allow([^am__EXEEXT_FALSE$])
+m4trace:configure.ac:661: -1- _AM_SUBST_NOTMAKE([am__EXEEXT_TRUE])
+m4trace:configure.ac:661: -1- _AM_SUBST_NOTMAKE([am__EXEEXT_FALSE])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([top_builddir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([top_build_prefix])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([srcdir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([abs_srcdir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([top_srcdir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([abs_top_srcdir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([builddir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([abs_builddir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([abs_top_builddir])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([INSTALL])
+m4trace:configure.ac:661: -1- AC_SUBST_TRACE([MKDIR_P])
+m4trace:configure.ac:661: -1- AC_REQUIRE_AUX_FILE([ltmain.sh])
diff -ruN gcc-12.2.0/libstdc++-v3/configure gcc-12.2.0-banan/libstdc++-v3/configure
--- gcc-12.2.0/libstdc++-v3/configure	2022-08-19 11:09:55.416698774 +0300
+++ gcc-12.2.0-banan/libstdc++-v3/configure	2023-04-05 21:57:18.136349251 +0300
@@ -29245,6 +29245,5980 @@
     # This is a freestanding configuration; there is nothing to do here.
     ;;
 
+  *-banan_os*)
+
+  # All these tests are for C++; save the language and the compiler flags.
+  # The CXXFLAGS thing is suspicious, but based on similar bits previously
+  # found in GLIBCXX_CONFIGURE.
+
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+
+  # Check for -ffunction-sections -fdata-sections
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
+  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo; void bar() { };
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_fdsections=yes
+else
+  ac_fdsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  if test "$ac_test_CXXFLAGS" = set; then
+    CXXFLAGS="$ac_save_CXXFLAGS"
+  else
+    # this is the suspicious part
+    CXXFLAGS=''
+  fi
+  if test x"$ac_fdsections" = x"yes"; then
+    SECTION_FLAGS='-ffunction-sections -fdata-sections'
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
+$as_echo "$ac_fdsections" >&6; }
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+  # If we're not using GNU ld, then there's no point in even trying these
+  # tests.  Check for that first.  We should have already tested for gld
+  # by now (in libtool), but require it now just to be safe...
+  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
+  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
+
+
+
+  # The name set by libtool depends on the version of libtool.  Shame on us
+  # for depending on an impl detail, but c'est la vie.  Older versions used
+  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
+  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
+  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
+  # set (hence we're using an older libtool), then set it.
+  if test x${with_gnu_ld+set} != xset; then
+    if test x${ac_cv_prog_gnu_ld+set} != xset; then
+      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
+      with_gnu_ld=no
+    else
+      with_gnu_ld=$ac_cv_prog_gnu_ld
+    fi
+  fi
+
+  # Start by getting the version number.  I think the libtool test already
+  # does some of this, but throws away the result.
+  glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
+$as_echo_n "checking for ld version... " >&6; }
+
+    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+      glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
+    fi
+    ldver=`$LD --version 2>/dev/null |
+	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
+
+    glibcxx_gnu_ld_version=`echo $ldver | \
+	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
+$as_echo "$glibcxx_gnu_ld_version" >&6; }
+  fi
+
+  # Set --gc-sections.
+  glibcxx_have_gc_sections=no
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
+    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+      glibcxx_have_gc_sections=yes
+    fi
+  else
+    glibcxx_gcsections_min_ld=21602
+    if test x"$with_gnu_ld" = x"yes" &&
+	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+      glibcxx_have_gc_sections=yes
+    fi
+  fi
+  if test "$glibcxx_have_gc_sections" = "yes"; then
+    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
+    # NB: This flag only works reliably after 2.16.1. Configure tests
+    # for this are difficult, so hard wire a value that should work.
+
+    ac_test_CFLAGS="${CFLAGS+set}"
+    ac_save_CFLAGS="$CFLAGS"
+    CFLAGS='-Wl,--gc-sections'
+
+    # Check for -Wl,--gc-sections
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
+$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
+    if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ int one(void) { return 1; }
+     int two(void) { return 2; }
+
+int
+main ()
+{
+ two();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_gcsections=yes
+else
+  ac_gcsections=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    if test "$ac_gcsections" = "yes"; then
+      rm -f conftest.c
+      touch conftest.c
+      if $CC -c conftest.c; then
+	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
+	   grep "Warning: gc-sections option ignored" > /dev/null; then
+	  ac_gcsections=no
+	fi
+      fi
+      rm -f conftest.c conftest.o conftest
+    fi
+    if test "$ac_gcsections" = "yes"; then
+      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
+$as_echo "$ac_gcsections" >&6; }
+
+    if test "$ac_test_CFLAGS" = set; then
+      CFLAGS="$ac_save_CFLAGS"
+    else
+      # this is the suspicious part
+      CFLAGS=''
+    fi
+  fi
+
+  # Set -z,relro.
+  # Note this is only for shared objects.
+  ac_ld_relro=no
+  if test x"$with_gnu_ld" = x"yes"; then
+    # cygwin and mingw uses PE, which has no ELF relro support,
+    # multi target ld may confuse configure machinery
+    case "$host" in
+    *-*-cygwin*)
+     ;;
+    *-*-mingw*)
+     ;;
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
+$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
+      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+      if test -n "$cxx_z_relo"; then
+        OPT_LDFLAGS="-Wl,-z,relro"
+        ac_ld_relro=yes
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
+$as_echo "$ac_ld_relro" >&6; }
+    esac
+  fi
+
+  # Set linker optimization flags.
+  if test x"$with_gnu_ld" = x"yes"; then
+    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+  fi
+
+
+
+
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
+$as_echo_n "checking for sin in -lm... " >&6; }
+if ${ac_cv_lib_m_sin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+if test x$gcc_no_link = xyes; then
+  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sin ();
+int
+main ()
+{
+return sin ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_sin=yes
+else
+  ac_cv_lib_m_sin=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
+$as_echo "$ac_cv_lib_m_sin" >&6; }
+if test "x$ac_cv_lib_m_sin" = xyes; then :
+  libm="-lm"
+fi
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libm"
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
+$as_echo_n "checking for isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
+    if ${glibcxx_cv_func_isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinf_use=yes
+else
+  glibcxx_cv_func_isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
+$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
+    for ac_func in isinf
+do :
+  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
+if test "x$ac_cv_func_isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISINF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
+$as_echo_n "checking for _isinf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
+    if ${glibcxx_cv_func__isinf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isinf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinf_use=yes
+else
+  glibcxx_cv_func__isinf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
+$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
+      for ac_func in _isinf
+do :
+  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
+if test "x$ac_cv_func__isinf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISINF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
+$as_echo_n "checking for isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
+    if ${glibcxx_cv_func_isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnan_use=yes
+else
+  glibcxx_cv_func_isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
+$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
+    for ac_func in isnan
+do :
+  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
+if test "x$ac_cv_func_isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISNAN 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
+$as_echo_n "checking for _isnan declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
+    if ${glibcxx_cv_func__isnan_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isnan(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnan_use=yes
+else
+  glibcxx_cv_func__isnan_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
+$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
+      for ac_func in _isnan
+do :
+  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
+if test "x$ac_cv_func__isnan" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISNAN 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
+$as_echo_n "checking for finite declaration... " >&6; }
+  if test x${glibcxx_cv_func_finite_use+set} != xset; then
+    if ${glibcxx_cv_func_finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finite_use=yes
+else
+  glibcxx_cv_func_finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
+$as_echo "$glibcxx_cv_func_finite_use" >&6; }
+
+  if test x$glibcxx_cv_func_finite_use = x"yes"; then
+    for ac_func in finite
+do :
+  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
+if test "x$ac_cv_func_finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FINITE 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
+$as_echo_n "checking for _finite declaration... " >&6; }
+  if test x${glibcxx_cv_func__finite_use+set} != xset; then
+    if ${glibcxx_cv_func__finite_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _finite(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finite_use=yes
+else
+  glibcxx_cv_func__finite_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
+$as_echo "$glibcxx_cv_func__finite_use" >&6; }
+
+    if test x$glibcxx_cv_func__finite_use = x"yes"; then
+      for ac_func in _finite
+do :
+  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
+if test "x$ac_cv_func__finite" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FINITE 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
+$as_echo_n "checking for sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
+    if ${glibcxx_cv_func_sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincos_use=yes
+else
+  glibcxx_cv_func_sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
+$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
+    for ac_func in sincos
+do :
+  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
+if test "x$ac_cv_func_sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SINCOS 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
+$as_echo_n "checking for _sincos declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
+    if ${glibcxx_cv_func__sincos_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincos(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincos_use=yes
+else
+  glibcxx_cv_func__sincos_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
+$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
+      for ac_func in _sincos
+do :
+  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
+if test "x$ac_cv_func__sincos" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__SINCOS 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
+$as_echo_n "checking for fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fpclass_use=yes
+else
+  glibcxx_cv_func_fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
+$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
+    for ac_func in fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
+if test "x$ac_cv_func_fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FPCLASS 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
+$as_echo_n "checking for _fpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__fpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _fpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fpclass_use=yes
+else
+  glibcxx_cv_func__fpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
+$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
+      for ac_func in _fpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
+if test "x$ac_cv_func__fpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FPCLASS 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
+$as_echo_n "checking for qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_qfpclass_use=yes
+else
+  glibcxx_cv_func_qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
+
+  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
+    for ac_func in qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
+if test "x$ac_cv_func_qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_QFPCLASS 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
+$as_echo_n "checking for _qfpclass declaration... " >&6; }
+  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
+    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _qfpclass(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__qfpclass_use=yes
+else
+  glibcxx_cv_func__qfpclass_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
+$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
+
+    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
+      for ac_func in _qfpclass
+do :
+  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
+if test "x$ac_cv_func__qfpclass" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__QFPCLASS 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
+$as_echo_n "checking for hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
+    if ${glibcxx_cv_func_hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypot_use=yes
+else
+  glibcxx_cv_func_hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
+$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
+    for ac_func in hypot
+do :
+  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
+if test "x$ac_cv_func_hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_HYPOT 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
+$as_echo_n "checking for _hypot declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
+    if ${glibcxx_cv_func__hypot_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypot(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypot_use=yes
+else
+  glibcxx_cv_func__hypot_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
+$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
+      for ac_func in _hypot
+do :
+  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
+if test "x$ac_cv_func__hypot" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__HYPOT 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
+$as_echo_n "checking for float trig functions... " >&6; }
+  if ${glibcxx_cv_func_float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_trig_use=yes
+else
+  glibcxx_cv_func_float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
+$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
+  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
+    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
+$as_echo_n "checking for _float trig functions... " >&6; }
+    if ${glibcxx_cv_func__float_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_trig_use=yes
+else
+  glibcxx_cv_func__float_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
+$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
+    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
+      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
+$as_echo_n "checking for float round functions... " >&6; }
+  if ${glibcxx_cv_func_float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceilf (0); floorf (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_float_round_use=yes
+else
+  glibcxx_cv_func_float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
+$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
+  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
+    for ac_func in ceilf floorf
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
+$as_echo_n "checking for _float round functions... " >&6; }
+    if ${glibcxx_cv_func__float_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceilf (0); _floorf (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__float_round_use=yes
+else
+  glibcxx_cv_func__float_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
+$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
+    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
+      for ac_func in _ceilf _floorf
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
+$as_echo_n "checking for expf declaration... " >&6; }
+  if test x${glibcxx_cv_func_expf_use+set} != xset; then
+    if ${glibcxx_cv_func_expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expf_use=yes
+else
+  glibcxx_cv_func_expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
+$as_echo "$glibcxx_cv_func_expf_use" >&6; }
+
+  if test x$glibcxx_cv_func_expf_use = x"yes"; then
+    for ac_func in expf
+do :
+  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
+if test "x$ac_cv_func_expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXPF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
+$as_echo_n "checking for _expf declaration... " >&6; }
+  if test x${glibcxx_cv_func__expf_use+set} != xset; then
+    if ${glibcxx_cv_func__expf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _expf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expf_use=yes
+else
+  glibcxx_cv_func__expf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
+$as_echo "$glibcxx_cv_func__expf_use" >&6; }
+
+    if test x$glibcxx_cv_func__expf_use = x"yes"; then
+      for ac_func in _expf
+do :
+  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
+if test "x$ac_cv_func__expf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__EXPF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
+$as_echo_n "checking for isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanf_use=yes
+else
+  glibcxx_cv_func_isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
+$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
+    for ac_func in isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
+if test "x$ac_cv_func_isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISNANF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
+$as_echo_n "checking for _isnanf declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isnanf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanf_use=yes
+else
+  glibcxx_cv_func__isnanf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
+$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
+      for ac_func in _isnanf
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
+if test "x$ac_cv_func__isnanf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISNANF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
+$as_echo_n "checking for isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
+    if ${glibcxx_cv_func_isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinff_use=yes
+else
+  glibcxx_cv_func_isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
+$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
+    for ac_func in isinff
+do :
+  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
+if test "x$ac_cv_func_isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISINFF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
+$as_echo_n "checking for _isinff declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
+    if ${glibcxx_cv_func__isinff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isinff(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinff_use=yes
+else
+  glibcxx_cv_func__isinff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
+$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
+      for ac_func in _isinff
+do :
+  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
+if test "x$ac_cv_func__isinff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISINFF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
+$as_echo_n "checking for atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2f_use=yes
+else
+  glibcxx_cv_func_atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
+$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
+    for ac_func in atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
+if test "x$ac_cv_func_atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ATAN2F 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
+$as_echo_n "checking for _atan2f declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2f(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2f_use=yes
+else
+  glibcxx_cv_func__atan2f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
+$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
+      for ac_func in _atan2f
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
+if test "x$ac_cv_func__atan2f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ATAN2F 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
+$as_echo_n "checking for fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsf_use=yes
+else
+  glibcxx_cv_func_fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
+$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
+    for ac_func in fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
+if test "x$ac_cv_func_fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FABSF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
+$as_echo_n "checking for _fabsf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _fabsf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsf_use=yes
+else
+  glibcxx_cv_func__fabsf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
+$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
+      for ac_func in _fabsf
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
+if test "x$ac_cv_func__fabsf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FABSF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
+$as_echo_n "checking for fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodf_use=yes
+else
+  glibcxx_cv_func_fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
+$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
+    for ac_func in fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
+if test "x$ac_cv_func_fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FMODF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
+$as_echo_n "checking for _fmodf declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodf_use=yes
+else
+  glibcxx_cv_func__fmodf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
+$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
+      for ac_func in _fmodf
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
+if test "x$ac_cv_func__fmodf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FMODF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
+$as_echo_n "checking for frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpf_use=yes
+else
+  glibcxx_cv_func_frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
+$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
+    for ac_func in frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
+if test "x$ac_cv_func_frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FREXPF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
+$as_echo_n "checking for _frexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpf_use=yes
+else
+  glibcxx_cv_func__frexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
+$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
+      for ac_func in _frexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
+if test "x$ac_cv_func__frexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FREXPF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
+$as_echo_n "checking for hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotf_use=yes
+else
+  glibcxx_cv_func_hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
+$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
+    for ac_func in hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
+if test "x$ac_cv_func_hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_HYPOTF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
+$as_echo_n "checking for _hypotf declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotf_use=yes
+else
+  glibcxx_cv_func__hypotf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
+$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
+      for ac_func in _hypotf
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
+if test "x$ac_cv_func__hypotf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__HYPOTF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
+$as_echo_n "checking for ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpf_use=yes
+else
+  glibcxx_cv_func_ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
+    for ac_func in ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
+if test "x$ac_cv_func_ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LDEXPF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
+$as_echo_n "checking for _ldexpf declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpf_use=yes
+else
+  glibcxx_cv_func__ldexpf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
+      for ac_func in _ldexpf
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
+if test "x$ac_cv_func__ldexpf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LDEXPF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
+$as_echo_n "checking for logf declaration... " >&6; }
+  if test x${glibcxx_cv_func_logf_use+set} != xset; then
+    if ${glibcxx_cv_func_logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logf_use=yes
+else
+  glibcxx_cv_func_logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
+$as_echo "$glibcxx_cv_func_logf_use" >&6; }
+
+  if test x$glibcxx_cv_func_logf_use = x"yes"; then
+    for ac_func in logf
+do :
+  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
+if test "x$ac_cv_func_logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LOGF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
+$as_echo_n "checking for _logf declaration... " >&6; }
+  if test x${glibcxx_cv_func__logf_use+set} != xset; then
+    if ${glibcxx_cv_func__logf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _logf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logf_use=yes
+else
+  glibcxx_cv_func__logf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
+$as_echo "$glibcxx_cv_func__logf_use" >&6; }
+
+    if test x$glibcxx_cv_func__logf_use = x"yes"; then
+      for ac_func in _logf
+do :
+  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
+if test "x$ac_cv_func__logf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LOGF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
+$as_echo_n "checking for log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
+    if ${glibcxx_cv_func_log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10f_use=yes
+else
+  glibcxx_cv_func_log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
+$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
+    for ac_func in log10f
+do :
+  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
+if test "x$ac_cv_func_log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LOG10F 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
+$as_echo_n "checking for _log10f declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
+    if ${glibcxx_cv_func__log10f_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _log10f(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10f_use=yes
+else
+  glibcxx_cv_func__log10f_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
+$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
+      for ac_func in _log10f
+do :
+  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
+if test "x$ac_cv_func__log10f" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LOG10F 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
+$as_echo_n "checking for modff declaration... " >&6; }
+  if test x${glibcxx_cv_func_modff_use+set} != xset; then
+    if ${glibcxx_cv_func_modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modff_use=yes
+else
+  glibcxx_cv_func_modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
+$as_echo "$glibcxx_cv_func_modff_use" >&6; }
+
+  if test x$glibcxx_cv_func_modff_use = x"yes"; then
+    for ac_func in modff
+do :
+  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
+if test "x$ac_cv_func_modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MODFF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
+$as_echo_n "checking for _modff declaration... " >&6; }
+  if test x${glibcxx_cv_func__modff_use+set} != xset; then
+    if ${glibcxx_cv_func__modff_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modff(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modff_use=yes
+else
+  glibcxx_cv_func__modff_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
+$as_echo "$glibcxx_cv_func__modff_use" >&6; }
+
+    if test x$glibcxx_cv_func__modff_use = x"yes"; then
+      for ac_func in _modff
+do :
+  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
+if test "x$ac_cv_func__modff" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__MODFF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
+$as_echo_n "checking for modf declaration... " >&6; }
+  if test x${glibcxx_cv_func_modf_use+set} != xset; then
+    if ${glibcxx_cv_func_modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modf_use=yes
+else
+  glibcxx_cv_func_modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
+$as_echo "$glibcxx_cv_func_modf_use" >&6; }
+
+  if test x$glibcxx_cv_func_modf_use = x"yes"; then
+    for ac_func in modf
+do :
+  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
+if test "x$ac_cv_func_modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MODF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
+$as_echo_n "checking for _modf declaration... " >&6; }
+  if test x${glibcxx_cv_func__modf_use+set} != xset; then
+    if ${glibcxx_cv_func__modf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modf_use=yes
+else
+  glibcxx_cv_func__modf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
+$as_echo "$glibcxx_cv_func__modf_use" >&6; }
+
+    if test x$glibcxx_cv_func__modf_use = x"yes"; then
+      for ac_func in _modf
+do :
+  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
+if test "x$ac_cv_func__modf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__MODF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
+$as_echo_n "checking for powf declaration... " >&6; }
+  if test x${glibcxx_cv_func_powf_use+set} != xset; then
+    if ${glibcxx_cv_func_powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powf_use=yes
+else
+  glibcxx_cv_func_powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
+$as_echo "$glibcxx_cv_func_powf_use" >&6; }
+
+  if test x$glibcxx_cv_func_powf_use = x"yes"; then
+    for ac_func in powf
+do :
+  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
+if test "x$ac_cv_func_powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_POWF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
+$as_echo_n "checking for _powf declaration... " >&6; }
+  if test x${glibcxx_cv_func__powf_use+set} != xset; then
+    if ${glibcxx_cv_func__powf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powf(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powf_use=yes
+else
+  glibcxx_cv_func__powf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
+$as_echo "$glibcxx_cv_func__powf_use" >&6; }
+
+    if test x$glibcxx_cv_func__powf_use = x"yes"; then
+      for ac_func in _powf
+do :
+  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
+if test "x$ac_cv_func__powf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__POWF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
+$as_echo_n "checking for sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtf_use=yes
+else
+  glibcxx_cv_func_sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
+    for ac_func in sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
+if test "x$ac_cv_func_sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SQRTF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
+$as_echo_n "checking for _sqrtf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _sqrtf(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtf_use=yes
+else
+  glibcxx_cv_func__sqrtf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
+      for ac_func in _sqrtf
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
+if test "x$ac_cv_func__sqrtf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__SQRTF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
+$as_echo_n "checking for sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosf_use=yes
+else
+  glibcxx_cv_func_sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
+$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
+    for ac_func in sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
+if test "x$ac_cv_func_sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SINCOSF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
+$as_echo_n "checking for _sincosf declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosf_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosf(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosf_use=yes
+else
+  glibcxx_cv_func__sincosf_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
+$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
+      for ac_func in _sincosf
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
+if test "x$ac_cv_func__sincosf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__SINCOSF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
+$as_echo_n "checking for finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
+    if ${glibcxx_cv_func_finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitef_use=yes
+else
+  glibcxx_cv_func_finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
+$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
+    for ac_func in finitef
+do :
+  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
+if test "x$ac_cv_func_finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FINITEF 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
+$as_echo_n "checking for _finitef declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
+    if ${glibcxx_cv_func__finitef_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _finitef(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitef_use=yes
+else
+  glibcxx_cv_func__finitef_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
+$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
+      for ac_func in _finitef
+do :
+  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
+if test "x$ac_cv_func__finitef" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FINITEF 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
+$as_echo_n "checking for long double trig functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_trig_use=yes
+else
+  glibcxx_cv_func_long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
+    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
+$as_echo_n "checking for _long double trig functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_trig_use=yes
+else
+  glibcxx_cv_func__long_double_trig_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
+      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
+$as_echo_n "checking for long double round functions... " >&6; }
+  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ceill (0); floorl (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_long_double_round_use=yes
+else
+  glibcxx_cv_func_long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
+  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
+    for ac_func in ceill floorl
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
+$as_echo_n "checking for _long double round functions... " >&6; }
+    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+_ceill (0); _floorl (0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__long_double_round_use=yes
+else
+  glibcxx_cv_func__long_double_round_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
+$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
+    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
+      for ac_func in _ceill _floorl
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
+$as_echo_n "checking for isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func_isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isnanl_use=yes
+else
+  glibcxx_cv_func_isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
+$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
+    for ac_func in isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
+if test "x$ac_cv_func_isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISNANL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
+$as_echo_n "checking for _isnanl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
+    if ${glibcxx_cv_func__isnanl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isnanl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isnanl_use=yes
+else
+  glibcxx_cv_func__isnanl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
+$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
+      for ac_func in _isnanl
+do :
+  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
+if test "x$ac_cv_func__isnanl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISNANL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
+$as_echo_n "checking for isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func_isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_isinfl_use=yes
+else
+  glibcxx_cv_func_isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
+$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
+    for ac_func in isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
+if test "x$ac_cv_func_isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ISINFL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
+$as_echo_n "checking for _isinfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
+    if ${glibcxx_cv_func__isinfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _isinfl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__isinfl_use=yes
+else
+  glibcxx_cv_func__isinfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
+$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
+      for ac_func in _isinfl
+do :
+  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
+if test "x$ac_cv_func__isinfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ISINFL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
+$as_echo_n "checking for atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func_atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_atan2l_use=yes
+else
+  glibcxx_cv_func_atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
+$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
+
+  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
+    for ac_func in atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
+if test "x$ac_cv_func_atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ATAN2L 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
+$as_echo_n "checking for _atan2l declaration... " >&6; }
+  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
+    if ${glibcxx_cv_func__atan2l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _atan2l(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__atan2l_use=yes
+else
+  glibcxx_cv_func__atan2l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
+$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
+
+    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
+      for ac_func in _atan2l
+do :
+  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
+if test "x$ac_cv_func__atan2l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__ATAN2L 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
+$as_echo_n "checking for expl declaration... " >&6; }
+  if test x${glibcxx_cv_func_expl_use+set} != xset; then
+    if ${glibcxx_cv_func_expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_expl_use=yes
+else
+  glibcxx_cv_func_expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
+$as_echo "$glibcxx_cv_func_expl_use" >&6; }
+
+  if test x$glibcxx_cv_func_expl_use = x"yes"; then
+    for ac_func in expl
+do :
+  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
+if test "x$ac_cv_func_expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXPL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
+$as_echo_n "checking for _expl declaration... " >&6; }
+  if test x${glibcxx_cv_func__expl_use+set} != xset; then
+    if ${glibcxx_cv_func__expl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _expl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__expl_use=yes
+else
+  glibcxx_cv_func__expl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
+$as_echo "$glibcxx_cv_func__expl_use" >&6; }
+
+    if test x$glibcxx_cv_func__expl_use = x"yes"; then
+      for ac_func in _expl
+do :
+  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
+if test "x$ac_cv_func__expl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__EXPL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
+$as_echo_n "checking for fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func_fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fabsl_use=yes
+else
+  glibcxx_cv_func_fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
+$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
+    for ac_func in fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
+if test "x$ac_cv_func_fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FABSL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
+$as_echo_n "checking for _fabsl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
+    if ${glibcxx_cv_func__fabsl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _fabsl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fabsl_use=yes
+else
+  glibcxx_cv_func__fabsl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
+$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
+      for ac_func in _fabsl
+do :
+  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
+if test "x$ac_cv_func__fabsl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FABSL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
+$as_echo_n "checking for fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func_fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_fmodl_use=yes
+else
+  glibcxx_cv_func_fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
+$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
+
+  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
+    for ac_func in fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
+if test "x$ac_cv_func_fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FMODL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
+$as_echo_n "checking for _fmodl declaration... " >&6; }
+  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
+    if ${glibcxx_cv_func__fmodl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _fmodl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__fmodl_use=yes
+else
+  glibcxx_cv_func__fmodl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
+$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
+
+    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
+      for ac_func in _fmodl
+do :
+  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
+if test "x$ac_cv_func__fmodl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FMODL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
+$as_echo_n "checking for frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_frexpl_use=yes
+else
+  glibcxx_cv_func_frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
+$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
+    for ac_func in frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
+if test "x$ac_cv_func_frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FREXPL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
+$as_echo_n "checking for _frexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__frexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _frexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__frexpl_use=yes
+else
+  glibcxx_cv_func__frexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
+$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
+      for ac_func in _frexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
+if test "x$ac_cv_func__frexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FREXPL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
+$as_echo_n "checking for hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func_hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_hypotl_use=yes
+else
+  glibcxx_cv_func_hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
+$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
+
+  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
+    for ac_func in hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
+if test "x$ac_cv_func_hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_HYPOTL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
+$as_echo_n "checking for _hypotl declaration... " >&6; }
+  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
+    if ${glibcxx_cv_func__hypotl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _hypotl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__hypotl_use=yes
+else
+  glibcxx_cv_func__hypotl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
+$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
+
+    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
+      for ac_func in _hypotl
+do :
+  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
+if test "x$ac_cv_func__hypotl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__HYPOTL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
+$as_echo_n "checking for ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_ldexpl_use=yes
+else
+  glibcxx_cv_func_ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
+
+  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
+    for ac_func in ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
+if test "x$ac_cv_func_ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LDEXPL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
+$as_echo_n "checking for _ldexpl declaration... " >&6; }
+  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
+    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _ldexpl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__ldexpl_use=yes
+else
+  glibcxx_cv_func__ldexpl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
+$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
+
+    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
+      for ac_func in _ldexpl
+do :
+  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
+if test "x$ac_cv_func__ldexpl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LDEXPL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
+$as_echo_n "checking for logl declaration... " >&6; }
+  if test x${glibcxx_cv_func_logl_use+set} != xset; then
+    if ${glibcxx_cv_func_logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_logl_use=yes
+else
+  glibcxx_cv_func_logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
+$as_echo "$glibcxx_cv_func_logl_use" >&6; }
+
+  if test x$glibcxx_cv_func_logl_use = x"yes"; then
+    for ac_func in logl
+do :
+  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
+if test "x$ac_cv_func_logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LOGL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
+$as_echo_n "checking for _logl declaration... " >&6; }
+  if test x${glibcxx_cv_func__logl_use+set} != xset; then
+    if ${glibcxx_cv_func__logl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _logl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__logl_use=yes
+else
+  glibcxx_cv_func__logl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
+$as_echo "$glibcxx_cv_func__logl_use" >&6; }
+
+    if test x$glibcxx_cv_func__logl_use = x"yes"; then
+      for ac_func in _logl
+do :
+  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
+if test "x$ac_cv_func__logl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LOGL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
+$as_echo_n "checking for log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
+    if ${glibcxx_cv_func_log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_log10l_use=yes
+else
+  glibcxx_cv_func_log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
+$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
+
+  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
+    for ac_func in log10l
+do :
+  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
+if test "x$ac_cv_func_log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LOG10L 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
+$as_echo_n "checking for _log10l declaration... " >&6; }
+  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
+    if ${glibcxx_cv_func__log10l_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _log10l(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__log10l_use=yes
+else
+  glibcxx_cv_func__log10l_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
+$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
+
+    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
+      for ac_func in _log10l
+do :
+  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
+if test "x$ac_cv_func__log10l" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__LOG10L 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
+$as_echo_n "checking for modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
+    if ${glibcxx_cv_func_modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_modfl_use=yes
+else
+  glibcxx_cv_func_modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
+$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
+
+  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
+    for ac_func in modfl
+do :
+  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
+if test "x$ac_cv_func_modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MODFL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
+$as_echo_n "checking for _modfl declaration... " >&6; }
+  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
+    if ${glibcxx_cv_func__modfl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _modfl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__modfl_use=yes
+else
+  glibcxx_cv_func__modfl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
+$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
+
+    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
+      for ac_func in _modfl
+do :
+  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
+if test "x$ac_cv_func__modfl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__MODFL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
+$as_echo_n "checking for powl declaration... " >&6; }
+  if test x${glibcxx_cv_func_powl_use+set} != xset; then
+    if ${glibcxx_cv_func_powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_powl_use=yes
+else
+  glibcxx_cv_func_powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
+$as_echo "$glibcxx_cv_func_powl_use" >&6; }
+
+  if test x$glibcxx_cv_func_powl_use = x"yes"; then
+    for ac_func in powl
+do :
+  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
+if test "x$ac_cv_func_powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_POWL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
+$as_echo_n "checking for _powl declaration... " >&6; }
+  if test x${glibcxx_cv_func__powl_use+set} != xset; then
+    if ${glibcxx_cv_func__powl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _powl(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__powl_use=yes
+else
+  glibcxx_cv_func__powl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
+$as_echo "$glibcxx_cv_func__powl_use" >&6; }
+
+    if test x$glibcxx_cv_func__powl_use = x"yes"; then
+      for ac_func in _powl
+do :
+  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
+if test "x$ac_cv_func__powl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__POWL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
+$as_echo_n "checking for sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sqrtl_use=yes
+else
+  glibcxx_cv_func_sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
+    for ac_func in sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
+if test "x$ac_cv_func_sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SQRTL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
+$as_echo_n "checking for _sqrtl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
+    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _sqrtl(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sqrtl_use=yes
+else
+  glibcxx_cv_func__sqrtl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
+$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
+      for ac_func in _sqrtl
+do :
+  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
+if test "x$ac_cv_func__sqrtl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__SQRTL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
+$as_echo_n "checking for sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func_sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_sincosl_use=yes
+else
+  glibcxx_cv_func_sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
+$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
+
+  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
+    for ac_func in sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
+if test "x$ac_cv_func_sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SINCOSL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
+$as_echo_n "checking for _sincosl declaration... " >&6; }
+  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
+    if ${glibcxx_cv_func__sincosl_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+ _sincosl(0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__sincosl_use=yes
+else
+  glibcxx_cv_func__sincosl_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
+$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
+
+    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
+      for ac_func in _sincosl
+do :
+  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
+if test "x$ac_cv_func__sincosl" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__SINCOSL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
+$as_echo_n "checking for finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
+    if ${glibcxx_cv_func_finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_finitel_use=yes
+else
+  glibcxx_cv_func_finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
+$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
+
+  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
+    for ac_func in finitel
+do :
+  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
+if test "x$ac_cv_func_finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FINITEL 1
+_ACEOF
+
+fi
+done
+
+  else
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
+$as_echo_n "checking for _finitel declaration... " >&6; }
+  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
+    if ${glibcxx_cv_func__finitel_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <math.h>
+		      #ifdef HAVE_IEEEFP_H
+		      #include <ieeefp.h>
+		      #endif
+
+int
+main ()
+{
+ _finitel(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func__finitel_use=yes
+else
+  glibcxx_cv_func__finitel_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
+$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
+
+    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
+      for ac_func in _finitel
+do :
+  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
+if test "x$ac_cv_func__finitel" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FINITEL 1
+_ACEOF
+
+fi
+done
+
+    fi
+  fi
+
+
+
+
+  LIBS="$ac_save_LIBS"
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+
+  ac_test_CXXFLAGS="${CXXFLAGS+set}"
+  ac_save_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
+$as_echo_n "checking for at_quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ at_quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_at_quick_exit_use=yes
+else
+  glibcxx_cv_func_at_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
+    for ac_func in at_quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
+if test "x$ac_cv_func_at_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_AT_QUICK_EXIT 1
+_ACEOF
+
+fi
+done
+
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
+$as_echo_n "checking for quick_exit declaration... " >&6; }
+  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
+    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ quick_exit(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_quick_exit_use=yes
+else
+  glibcxx_cv_func_quick_exit_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
+$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
+  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
+    for ac_func in quick_exit
+do :
+  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
+if test "x$ac_cv_func_quick_exit" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_QUICK_EXIT 1
+_ACEOF
+
+fi
+done
+
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
+$as_echo_n "checking for strtold declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
+    if ${glibcxx_cv_func_strtold_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtold(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtold_use=yes
+else
+  glibcxx_cv_func_strtold_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
+$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
+  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
+    for ac_func in strtold
+do :
+  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
+if test "x$ac_cv_func_strtold" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRTOLD 1
+_ACEOF
+
+fi
+done
+
+  fi
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
+$as_echo_n "checking for strtof declaration... " >&6; }
+  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
+    if ${glibcxx_cv_func_strtof_use+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+      ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ strtof(0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  glibcxx_cv_func_strtof_use=yes
+else
+  glibcxx_cv_func_strtof_use=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
+$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
+  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
+    for ac_func in strtof
+do :
+  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
+if test "x$ac_cv_func_strtof" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRTOF 1
+_ACEOF
+
+fi
+done
+
+  fi
+
+
+
+
+  CXXFLAGS="$ac_save_CXXFLAGS"
+
+    ;;
+
   avr*-*-*)
     $as_echo "#define HAVE_ACOSF 1" >>confdefs.h
 
diff -ruN gcc-12.2.0/libstdc++-v3/crossconfig.m4 gcc-12.2.0-banan/libstdc++-v3/crossconfig.m4
--- gcc-12.2.0/libstdc++-v3/crossconfig.m4	2022-08-19 11:09:55.420698825 +0300
+++ gcc-12.2.0-banan/libstdc++-v3/crossconfig.m4	2023-04-05 21:57:01.943281129 +0300
@@ -9,6 +9,13 @@
     # This is a freestanding configuration; there is nothing to do here.
     ;;
 
+  *-banan_os*)
+    GLIBCXX_CHECK_COMPILER_FEATURES
+    GLIBCXX_CHECK_LINKER_FEATURES
+    GLIBCXX_CHECK_MATH_SUPPORT
+    GLIBCXX_CHECK_STDLIB_SUPPORT
+    ;;
+
   avr*-*-*)
     AC_DEFINE(HAVE_ACOSF)
     AC_DEFINE(HAVE_ASINF)