https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64081
--- Comment #30 from David Edelsohn <dje at gcc dot gnu.org> --- .../src/src/configure --disable-werror --with-gmp=/opt/cfarm --with-libiconv-prefix=/opt/cfarm --disable-libstdcxx-pch --with-included-gettext By the way, it's a lot faster if the src and build directories are in /scratch. It's a ramdisk for transient, temporary files, so don't leave things there permanently.