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

Christian Tismer wrote:

Hi all,

I was hacking to get mingw32 builds of psyco to work and found a pretty weird thing:

I used mingw32 (stable distro) to build the psyco extension on top of standard python2.6, built with Visual Studio, and got weird crashes.

The reason is in objimpl.h:

typedef union _gc_head { struct { union _gc_head *gc_next; union _gc_head *gc_prev; Py_ssize_t gc_refs; } gc; long double dummy; /* force worst-case alignment */ } PyGC_Head; [SNIP]

Did the crash disappear is you add "__attribute__((aligned(8)))" after variable dummy ? Regards, Roumen