http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47044
--- Comment #3 from Jack Howarth <howarth at nitro dot med.uc.edu> 2010-12-23 05:09:28 UTC --- Same bootstrap comparison failure can be reproduced on x86_64 Fedora10 with... ../gcc/configure --with-gmp=/usr --with-mpfr=/usr --with-mpc=/usr --prefix=/home/howarth/dist --enable-languages=c,c++ --enable-checking=yes --enable-build-with-cxx make -j 8 BOOT_CFLAGS="-g -O2 -fgraphite-identity"