https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110624
--- Comment #3 from Iain Sandoe <iains at gcc dot gnu.org> --- actually, we already have a config test for -platform_version, which is what clang passes to ld. First, I'll take a look at enabling that (in which case the mmacosx_version_min is not needed). I take it that clang -cc1as does not warn for -mmacosx-version-min= ?