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authorSam James <sam@gentoo.org>2023-02-28 18:31:14 +0000
committerSam James <sam@gentoo.org>2023-02-28 19:10:36 +0000
commit830c46baf116bf8fca5b981723122ece4bfcbcd9 (patch)
tree6fdb552ceef2415aeb8de81334b0f86e8322d11b /profiles/base
parentapp-i18n/ibus-libpinyin: Stabilize 1.13.1 x86, #898400 (diff)
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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@gentoo.org>
Diffstat (limited to 'profiles/base')
-rw-r--r--profiles/base/make.defaults6
1 files changed, 6 insertions, 0 deletions
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 <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"