mm_malloc not working on the M2

[teuben]

Older problem, but on M3 and M4 it seems to work. My old M2 didn't pass this, and perhaps it's due to using the full brew compiler, which tries to pull in this header file.

This needs clarification for those using Mac's.

[teuben]

Confirmed: when using brew gcc , it triggers using mm_malloc, and it's ok when using native clang compiler delivered by apple.