http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46086
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-16 17:16:11 UTC --- > configure:3658: checking for C compiler default output file name > configure:3680: /usr/ports/lang/gcc45/work/build/./gcc/xgcc > -B/usr/ports/lang/gcc45/work/build/./gcc > / -B/usr/local/sparc64-portbld-freebsd9.0/bin/ > -B/usr/local/sparc64-portbld-freebsd9.0/lib/ -isystem > /usr/local/sparc64-portbld-freebsd9.0/include -isystem > /usr/local/sparc64-portbld-freebsd9.0/sys-in > clude -g -O2 -pipe -I/usr/local/include -fno-strict-aliasing conftest.c > >&5 > xgcc: Internal error: Segmentation fault: 11 (program cc1) > Please submit a full bug report. > See <http://gcc.gnu.org/bugs.html> for instructions. Probably the same issue. Did you run 'make check' for GMP and MPFR? If there are failures, it's not worthwhile to try to build GCC with them.