https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65584
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- We could avoid the stdlib.h include for pmm_alloc.h through __builtin_malloc/__builtin_free and __SIZE_TYPE__. But yes, maybe not defining _mm_malloc/_mm_free at all for non-__STDC_HOSTED__ is better.
