https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79430
--- Comment #49 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- (In reply to Bijan Chokoufe from comment #39) > Configure fails when I set FCFLAGS='-m32' with > ****************************************************************** > configure: error: Fortran compiler does not support get_command_argument; > configure aborted. > configure: error: > ****************************************************************** Can you compile a simple test program with -m32? You may have to recompile gcc trunk for that; do not specify --disable-multilib.