diff -ruN ncurses-6.5/config.log ncurses-6.5-banan_os/config.log
--- ncurses-6.5/config.log	1970-01-01 02:00:00.000000000 +0200
+++ ncurses-6.5-banan_os/config.log	2024-08-05 12:15:48.028466613 +0300
@@ -0,0 +1,106 @@
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by configure, which was
+generated by GNU Autoconf 2.52.20231210.  Invocation command line was
+
+  $ ./configure --host=x86_64-pc-banan_os --prefix=/usr/local --disable-db-intall --disable-widec --without-ada --without-manpages --without-dlsym --without-cxx-binding
+
+## ---------- ##
+## Platform.  ##
+## ---------- ##
+
+hostname = arch
+uname -m = x86_64
+uname -r = 6.10.2-arch1-2
+uname -s = Linux
+uname -v = #1 SMP PREEMPT_DYNAMIC Sat, 03 Aug 2024 17:56:17 +0000
+
+/usr/bin/uname -p = unknown
+/bin/uname -X     = unknown
+
+/bin/arch              = unknown
+/usr/bin/arch -k       = unknown
+/usr/convex/getsysinfo = unknown
+hostinfo               = unknown
+/bin/machine           = unknown
+/usr/bin/oslevel       = unknown
+/bin/universe          = unknown
+
+PATH = /home/oskari/dev/banan-os/ports/../toolchain/local/bin:/home/oskari/.wasmer/bin:/home/oskari/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/usr/lib/rustup/bin
+
+## ------------ ##
+## Core tests.  ##
+## ------------ ##
+
+configure:1175: PATH=".;."; conftest.sh
+./configure: line 1176: conftest.sh: command not found
+configure:1178: $? = 127
+configure:1195: checking for ggrep
+configure:1221: result: no
+configure:1195: checking for grep
+configure:1210: found /usr/bin/grep
+configure:1218: result: grep
+configure:1229: checking for egrep
+configure:1285: result: grep -E
+configure:1296: result: Configuring NCURSES 6.5 ABI 6 (Mon Aug  5 12:15:47 EEST 2024)
+configure:1300: checking for package version
+configure:1321: result: 6.5
+configure:1324: checking for package patch date
+configure:1341: result: 20240427
+configure:1352: testing ABI VERSION 5:0:10 ...
+configure:1356: testing VERSION_MAJOR 6 ...
+configure:1360: testing VERSION_MINOR 5 ...
+configure:1364: testing VERSION_PATCH 20240427 ...
+configure:1509: checking build system type
+configure:1527: result: x86_64-pc-linux-gnu
+configure:1534: checking host system type
+configure:1543: error: /bin/sh ./config.sub x86_64-pc-banan_os failed
+
+## ----------------- ##
+## Cache variables.  ##
+## ----------------- ##
+
+ac_cv_build=x86_64-pc-linux-gnu
+ac_cv_build_alias=x86_64-pc-linux-gnu
+ac_cv_env_CC_set=
+ac_cv_env_CC_value=
+ac_cv_env_CFLAGS_set=
+ac_cv_env_CFLAGS_value=
+ac_cv_env_CPPFLAGS_set=
+ac_cv_env_CPPFLAGS_value=
+ac_cv_env_CPP_set=
+ac_cv_env_CPP_value=
+ac_cv_env_CXXCPP_set=
+ac_cv_env_CXXCPP_value=
+ac_cv_env_CXXFLAGS_set=
+ac_cv_env_CXXFLAGS_value=
+ac_cv_env_CXX_set=
+ac_cv_env_CXX_value=
+ac_cv_env_LDFLAGS_set=
+ac_cv_env_LDFLAGS_value=
+ac_cv_env_build_alias_set=
+ac_cv_env_build_alias_value=
+ac_cv_env_host_alias_set=set
+ac_cv_env_host_alias_value=x86_64-pc-banan_os
+ac_cv_env_target_alias_set=
+ac_cv_env_target_alias_value=
+ac_cv_host=
+ac_cv_host_alias=x86_64-pc-banan_os
+ac_cv_path_EGREP='grep -E'
+ac_cv_prog_GREP=grep
+cf_cv_abi_default=6
+cf_cv_abi_version=6
+cf_cv_rel_version=6.5
+cf_cv_timestamp='Mon Aug  5 12:15:47 EEST 2024'
+
+## ------------ ##
+## confdefs.h.  ##
+## ------------ ##
+
+#define PACKAGE "ncurses"
+#define NCURSES_VERSION "6.5"
+#define NCURSES_PATCHDATE 20240427
+
+
+configure: exit 1
diff -ruN ncurses-6.5/config.sub ncurses-6.5-banan_os/config.sub
--- ncurses-6.5/config.sub	2023-12-27 16:41:27.000000000 +0200
+++ ncurses-6.5-banan_os/config.sub	2024-08-05 12:17:03.025286556 +0300
@@ -1768,7 +1768,7 @@
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
-	     | fiwix* | mlibc* | cos* | mbr* | ironclad* )
+	     | fiwix* | mlibc* | cos* | mbr* | ironclad* | banan_os* )
 		;;
 	# This one is extra strict with allowed versions
 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)