https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79935
--- Comment #4 from jwjagersma at gmail dot com --- > More likely, DJGPP just doesn't support more than 8-byte alignment. I just had the same problem in a normal function too, so I suppose that is the case then. I do think djgpp should support 16-byte alignment since programs compiled with it could potentially use SSE instructions (which is what I'm trying to do, using -O3 -march=pentium3) which cause GP faults on misaligned memory access. Where do I submit this to the djgpp list? The bug tracker on delorie.com seems very inactive.