https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65397
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> --- See also gfortran.dg/coarray_38.f90 of https://gcc.gnu.org/ml/fortran/2015-03/msg00057.html (assuming it will eventually appear on the server)
