commit: 830c46baf116bf8fca5b981723122ece4bfcbcd9 Author: Sam James <sam <AT> gentoo <DOT> org> AuthorDate: Tue Feb 28 18:31:14 2023 +0000 Commit: Sam James <sam <AT> gentoo <DOT> org> CommitDate: Tue Feb 28 19:10:36 2023 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=830c46ba
profiles/base: add cache vars for -Wimplicit-function-declaration silencing Autoconf has a builtin check to try figure out how to make the compiler error out on implicit function declarations. This check necessarily emits such a warning/error. We know that -Werror=implicit-function-declaration will work on any compiler we care about, so just force that to avoid noise. This means we don't have to try whitelist 'strchr'. Bug: https://bugs.gentoo.org/870412 Signed-off-by: Sam James <sam <AT> gentoo.org> profiles/base/make.defaults | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/profiles/base/make.defaults b/profiles/base/make.defaults index ab69dbfae58e..68ff36a90cc8 100644 --- a/profiles/base/make.defaults +++ b/profiles/base/make.defaults @@ -181,3 +181,9 @@ ADA_TARGET="gnat_2021" # Default targets for lua{,-single}.eclass LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" + +# Sam James <s...@gentoo.org> (2023-02-28) +# Reduce -Wimplicit-function-declaration noise from autoconf. Any compilers +# we care about should match these anyway. See https://wiki.gentoo.org/wiki/Modern_C_porting. +ac_cv_c_undeclared_builtin_options="none needed" +gl_cv_compiler_check_decl_option="-Werror=implicit-function-declaration"
