http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59107
--- Comment #4 from janus at gcc dot gnu.org --- In fact the warning seems to happen for all intrinsics which are introduced by 'add_sym_0' in intrinsic.c (all those are functions without arguments), except those from ISO_FORTRAN_ENV, since they are imported by a USE statement instead of INTRINSIC. For the intrinsics with arguments it does not seem to happen.