http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53197
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-05-02 22:17:26 UTC --- Definitely affects x86_64-unknown-linux-gnu too, my bootstrap failed with this config: /home/jwakely/src/gcc/configure --prefix=/home/jwakely/gcc/4.x --with-system-zlib --with-gnu-ld --with-gnu-as --disable-libitm --disable-libquadmath --disable-libmudflap --enable-libstdcxx-debug --enable-libstdcxx-time=rt --enable-languages=c,c++ It builds OK with --disable-bootstrap though
