http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55211
--- Comment #18 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-05 22:31:13 UTC --- > If sparc+--with-cpu=v8 and sparc64+--with-cpu=v8 were "equal" then my build > would trigger the problem too :-) Yep, you might want to configure with --enable-targets=all and see whether this will change something on your side.