[Bug target/119590] macOS 15.4 SDK is not GCC compatible

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119590

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
For c++ alignof should be used.
But for c _Alignof needs to be used.