[Bug fortran/71838] ICE with OpenCoarrays on submodule

[mexas at bristol dot ac.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71838

--- Comment #2 from Anton Shterenlikht <mexas at bristol dot ac.uk> ---
forgot to add that this is now with gcc-6.1:

$ caf --version

OpenCoarrays Coarray Fortran Compiler Wrapper (caf version 1.6.0)
Copyright (C) 2015-2016 Sourcery, Inc.

$ mpif90 --version
GNU Fortran (GCC) 6.1.0