http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46681
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-27 14:53:16 UTC --- Also try --disable-stage1-checking (without --disable-bootstrap). If that doesn't work trying STAGE1_CFLAGS="-O0" (without -g) or STAGE1_CFLAGS="-O1" might be worth trying. As this is a usually heavily modified 4.0 compiler you should report to Apple instead, apart from suggesting workarounds we can't do anything about this. Try updating Xcode so you get a 4.2 based host compiler maybe.
