https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80556
--- Comment #27 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Still present at revision r248811. Any chance to get this fixed? Did you try what I suggested in comment #16 as a stopgap measure? No GNAT developer builds the mainline compiler on Darwin regularly so this may take a while to sort out otherwise.