https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64976
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- With such non-standard bootstrap flags you should use --disable-werror, we don't guarantee no warnings for all possible command line switches. At least looking at the first warning, it is a clear false positive.