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'.
v2: drop 'export' as PMS doesn't allow it in make.defaults.
Signed-off-by: Sam James <
sam@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 ab69dbfae58ee..68ff36a90cc8d 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 <
sam@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"
--
2.39.2
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)