https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89431
--- Comment #2 from MarkEggleston <mark.eggleston at codethink dot com> --- (In reply to Dominique d'Humieres from comment #1) > These macros have been introduced at revision r267464. > > Looking at the code I don't see why __GFC_REAL_* are defined, but not > __GFC_INTEGER_*. Looking at the code I note that __GFC_INT_*__ is used not __GFC_INTEGER_*__, I changed the test program to use __GFC_INT_1__ instead of __GFC_INTEGER_1__ and it too is undefined.