http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59720
--- Comment #3 from janus at gcc dot gnu.org --- (In reply to janus from comment #2) > It is fixed by this simple patch: The patch fails on typebound_operator_14.f90 in the testsuite, which is very similar to the test case here and comes from PR 52024, where Tobias concluded that is was indeed ambiguous. I will re-check the Fortran standard on this issue ...