Immediately fails to build. Perhaps only compatible with older Ubuntu versions,.. so need docker ?
why is there 2025 12 branch ?
GIT_DIR=. PATH="/media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/host/bin:/media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/host/sbin:/home/user/.local/bin:/home/user/.local/stm32cube/bin:/home/user/.opencode/bin:/home/user/.nvm/versions/node/v23.11.1/bin:/home/user/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin" PKG_CONFIG="/media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_LIBDIR="/media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/host/lib/pkgconfig:/media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/host/share/pkgconfig" /usr/bin/make -j5 -C /media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/build/host-m4-1.4.20/
cd checks && /usr/bin/make
make[3]: Nothing to be done for 'all'.
/usr/bin/make all-recursive
Making all in .
make[4]: Nothing to be done for 'all-am'.
Making all in examples
make[4]: Nothing to be done for 'all'.
Making all in lib
/usr/bin/make all-am
CC libm4_a-asyncsafe-spin.o
CC libm4_a-openat-proc.o
CC libm4_a-gl_avltree_oset.o
CC libm4_a-basename-lgpl.o
CC libm4_a-bitrotate.o
In file included from /usr/include/features.h:539,
from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
from /usr/include/string.h:26,
from ./string.h:41,
from basename-lgpl.c:24:
./string.h:777:20: error: expected identifier or '(' before '_Generic'
777 | _GL_EXTERN_C void *memchr (const void *__s, int __c, size_t __n)
| ^~~~~~
make[5]: *** [Makefile:4160: libm4_a-basename-lgpl.o] Error 1
make[5]: *** Waiting for unfinished jobs....
In file included from /usr/include/features.h:539,
from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
from /usr/include/stdlib.h:26,
from ./stdlib.h:51,
from gl_avltree_oset.c:23:
./stdlib.h:827:20: error: expected identifier or '(' before '_Generic'
827 | _GL_EXTERN_C void *bsearch (const void *__key,
| ^~~~~~~
In file included from /usr/include/features.h:539,
from /usr/include/errno.h:25,
from openat-priv.h:23,
from openat-proc.c:22:
./stdlib.h:827:20: error: expected identifier or '(' before '_Generic'
827 | _GL_EXTERN_C void *bsearch (const void *__key,
| ^~~~~~~
make[5]: *** [Makefile:4146: libm4_a-gl_avltree_oset.o] Error 1
In file included from /usr/include/features.h:539,
from /usr/include/x86_64-linux-gnu/sys/types.h:25,
from ./sys/types.h:46,
from ./signal.h:49,
from asyncsafe-spin.h:43,
from asyncsafe-spin.c:22:
./stdlib.h:827:20: error: expected identifier or '(' before '_Generic'
827 | _GL_EXTERN_C void *bsearch (const void *__key,
| ^~~~~~~
./string.h:777:20: error: expected identifier or '(' before '_Generic'
777 | _GL_EXTERN_C void *memchr (const void *__s, int __c, size_t __n)
| ^~~~~~
make[5]: *** [Makefile:4118: libm4_a-asyncsafe-spin.o] Error 1
make[5]: *** [Makefile:4132: libm4_a-openat-proc.o] Error 1
make[4]: *** [Makefile:3608: all] Error 2
make[3]: *** [Makefile:2530: all-recursive] Error 1
make[2]: *** [Makefile:2486: all] Error 2
make[1]: *** [package/pkg-generic.mk:273: /media/user/H3D2P1/Develop/STMICRO/Buildroot/buildroot/output/build/host-m4-1.4.20/.stamp_built] Error 2
make: *** [Makefile:83: _all] Error
Immediately fails to build. Perhaps only compatible with older Ubuntu versions,.. so need docker ?
why is there 2025 12 branch ?