https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92514
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Sylvain Korzennik from comment #11) > I'll try rebuilding it w/ ./configure > --host=x86_64-pc-linux-gnu Or let GCC build them for you, by putting their sources in the GCC source tree, as recommended at https://gcc.gnu.org/wiki/InstallingGCC