diff -ruN libxshmfence-1.3.3/configure libxshmfence-1.3.3-banan_os/configure
--- libxshmfence-1.3.3/configure	2024-12-14 04:05:14.000000000 +0200
+++ libxshmfence-1.3.3-banan_os/configure	2026-07-05 09:29:32.691762812 +0300
@@ -6238,6 +6238,10 @@
   lt_cv_deplibs_check_method=pass_all
   ;;
 
+banan_os*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
 beos*)
   lt_cv_deplibs_check_method=pass_all
   ;;
@@ -11742,6 +11746,16 @@
     ;;
   esac
   ;;
+ 
+banan_os*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  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="$host_os DynamicLoader.so"
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
 
 beos*)
   library_names_spec='$libname$shared_ext'