https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100559
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > No local changes. > > I wonder where i-cexten.ads is being modified... Unlikely I'd say. Could you go into the $(buildir]/gcc/ada directory and do: ls -l rts/i-cexten.ads ls -l rts_32/i-cexten.ads They should not point to the same source file.