Re: [Python-Dev] mingw32 and gc-header weirdness

We could add a PY_LONG_LONG to the mix just in case. By the way, will this kind of thing be frozen by the PEP ABI?

Yes: alignof(PyGC_HEAD) would be specified as being the maximum alignment on a platform; sizeof(PyGC_HEAD) would be frozen. The actual content would not be frozen, i.e. it could be changed in principle as long as the change would be guaranteed not to affect the structure size. Regards, Martin