https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107612
--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> --- Besides, the m2rte plugin is incorrectly named on Darwin, thus unusable: cc1gm2: fatal error: inaccessible plugin file /var/gcc/modula-2/10.7-gcc/./gcc/plugin/m2rte.dylib expanded from short plugin name m2rte: No such file or directory compilation terminated. There's code in gcc/jit/Make-lang.in handling the same situation. To get further along, I've just manually added a symlink for now.