https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71865
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Ah, the PPC/SPU/s390 builtin conditional macros. For the testcase, the easiest tweak would be to compile with -std=c11, so that this mess isn't defined. Dunno if we should ignore the conditional macros from the suggestions or not.
