[Bug fortran/88929] ICE on building MPICH 3.2 with GCC 9 with ISO_Fortran_binding

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88929

--- Comment #1 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 45469
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45469&action=edit
A proposed patch for the PR.

Handling of fortran dummy arguments was not implemented in the recent
ISO_Fortran_binding patch. The attached rectifies that omission.

Paul