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Autoconf has a builtin check to try figure out how to make the compiler |
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error out on implicit function declarations. This check necessarily emits |
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such a warning/error. We know that -Werror=implicit-function-declaration |
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will work on any compiler we care about, so just force that to avoid noise. |
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|
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This means we don't have to try whitelist 'strchr'. |
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|
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Signed-off-by: Sam James <sam@g.o> |
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--- |
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profiles/base/make.defaults | 6 ++++++ |
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1 file changed, 6 insertions(+) |
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|
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diff --git a/profiles/base/make.defaults b/profiles/base/make.defaults |
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index ab69dbfae58ee..bdffd57047bbc 100644 |
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--- a/profiles/base/make.defaults |
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+++ b/profiles/base/make.defaults |
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@@ -181,3 +181,9 @@ ADA_TARGET="gnat_2021" |
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# Default targets for lua{,-single}.eclass |
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LUA_SINGLE_TARGET="lua5-1" |
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LUA_TARGETS="lua5-1" |
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+ |
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+# Sam James <sam@g.o> (2023-02-28) |
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+# Reduce -Wimplicit-function-declaration noise from autoconf. Any compilers |
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+# we care about should match these anyway. See https://wiki.gentoo.org/wiki/Modern_C_porting. |
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+export ac_cv_c_undeclared_builtin_options="none needed" |
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+export gl_cv_compiler_check_decl_option="-Werror=implicit-function-declaration" |
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-- |
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2.39.2 |
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