http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49275
--- Comment #3 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-06-04 23:20:14 UTC --- This problem no longer exists at r174648 with http://gcc.gnu.org/ml/gcc-patches/2011-05/msg02301.html installed. A profiledbootstrap BOOT_CFLAGS="-g -O3" CFLAGS_FOR_TARGET="-g -O3" CXXFLAGS_FOR_TARGET="-g -O3" using --enable-build-with-cxx succeeds on x86_64 darwin.