compiler: Ensure __builtin_*_overflow() support
Both gcc and clang support this for a long time.
Make sure the feature is present.
Signed-off-by:
Richard Weinberger <richard@nod.at>
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Both gcc and clang support this for a long time.
Make sure the feature is present.
Signed-off-by:
Richard Weinberger <richard@nod.at>