[Bug c/119950] __builtin_constant_p warning with -Wdeprecated-non-prototype inconsistent

[fw at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119950

--- Comment #1 from Florian Weimer <fw at gcc dot gnu.org> ---
Patch posted:

[PATCH] c: Suppress -Wdeprecated-non-prototype warnings for builtins
<https://inbox.sourceware.org/gcc-patches/87frhvglzg....@oldenburg.str.redhat.com/>