http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50778
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-10-19 09:00:43 UTC --- I have bootstrapped revision 180100 on powerpc-apple-darwin9 configured with ../work/configure --prefix=/opt/gcc/gcc4.7w --enable-languages=c,c++,fortran,objc,obj-c++,java,ada,lto --with-gmp=/sw --with-libiconv-prefix=/usr --with-system-zlib --with-cloog=/sw --enable-lto --enable-cloog-backend=isl after reverting revisions 180081 to 180086, and 180090. Unless someone come with a fix before, I'll try to restore the revisions one by one to narrow the range, but each bootstrap takes ~14 hours, so don't hold your breath!-).