https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64051
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Pierre Ossman from comment #6) > Just to make sure I understand you perfectly. This is not supported: > > ../configure --build=A --host=B --target=B By itself yes this is not supported. > > Instead you have to do: > > ../configure --build=A --host=A --target=B > > Then use that to: > > ../configure --build=A --host=B --target=B > > And those two compilers better have the same settings with regard to the > target or you're bound to get problems. > > Have I understood it correctly? Yes.