patch 9.0.1817: configure: using obsolete AC_HEADER_STDC Commit: https://github.com/vim/vim/commit/0e82b59df3fc12dc006e45e17222bcbb0462903f Author: Illia Bobyr <illia.bobyr@gmail.com> Date: Tue Aug 29 21:16:29 2023 +0200 patch 9.0.1817: configure: using obsolete AC_HEADER_STDC Problem: configure: using obsolete AC_HEADER_STDC Solution: Remove it and re-create configure closes: #12949 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Illia Bobyr <illia.bobyr@gmail.com>

/^CFLAGS[[:blank:]]*=/s/$/ -Wall -Wextra -Wshadow -Werror/
/^PERL_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=unused-function -Wno-shadow/
/^RUBY_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=unused-parameter/