http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40276
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> --- Patch for PR57711 and this PR: http://gcc.gnu.org/ml/fortran/2013-06/msg00132.html (approved). It fails for the test case http://gcc.gnu.org/ml/fortran/2013-07/msg00017.html (-> PR39290 and PR20896). In that test case, "s1" and "s2" are ambiguous in F2003/F2008. However, I fear that the check in the patch above will give a bogus error for interface gen subroutine s1(x) real, external :: x end subroutine s1 subroutine s1(x) integer, external :: x end subroutine s1 end interface which is valid since F2008 ("both data objects or known to be functions, and neither is TKR compatible with the other,", 12.4.3.4.5). The issue does not occur yet, as the feature is not yet implemented.
