http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48097
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-18 08:53:03 UTC --- Looking at gcc-4.2, there is no darwin MD_FALLBACK_FRAME_STATE_FOR for i?86 and for powerpc it doesn't call _Unwind_SetSignalFrame (xxx, 1) unlike e.g. linux MD_FALLBACK_FRAME_STATE_FOR. Apparently that state didn't change even in 4.7, but if nothing uses the gcc unwinder, all that matters for darwin is whether Apple unwinder gets fixed.
