http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57003
dank at kegel dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dank at kegel dot com --- Comment #4 from dank at kegel dot com 2013-04-21 14:22:41 UTC --- Austin English said "I did...that's what led to the original commit showing the segfault. IOW: $ git reset --hard c8010b803d34fa7e096747067e33c650b36ecc06 # build gcc/wine - gcc fails to build wine, internal compiler error $ git show d73df2920c77116fd88e03cd95dd352f16511a3f | patch -p1 # build gcc/wine - wine segfaults on launch" So bisecting seems complete. Also, Kirill Smirnov reports that building wine using just -O2 runs into this bug for him, but building wine with "-O2 -fno-builtin-memcpy" doesn't. Next step may be to bisect wine's source code to see which file or files misbehave when built with -O2 but without -fno-builtin-memcpy.