https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93109
Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |egallager at gcc dot gnu.org --- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> --- I understand why it happens though; to get from #undefine to #define only requires 2 letters to be removed, but to get from #undefine to #undef, 3 letters have to be removed.