https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > I wonder if the configure or make process should defend against the > possibility that the host compiler and the compiler that we are building > today have differing defaults for -m32 vs -m64. The problem is that we don't correctly detect the cross configuration here. > (Note: Although the defaults differ, both the above are perfectly happy to > build the non-default version if you are explicit for -m32 or -m64). Yes, same for a bootstrap. You can bootstrap the latter with the former if you correctly configure the bootstrap, with explicit --build and CC="gcc -m32".
