[Bug fortran/89943] Submodule functions are not allowed to have C binding

[kargl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89943

--- Comment #5 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Oct 17 16:30:25 2019
New Revision: 277122

URL: https://gcc.gnu.org/viewcvs?rev=277122&root=gcc&view=rev
Log:
2019-10-17  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/83113
        PR fortran/89943
        decl.c (gfc_match_function_decl): Ignore duplicate BIND(C) for function
        declaration in submodule.  Implement at check for F2018 C1550.
        (gfc_match_entry): Use temporary for locus, which allows removal of
        one gfc_error_now().
        (gfc_match_subroutine): Ignore duplicate BIND(C) for subroutine
        declaration in submodule.  Implement at check for F2018 C1550.

2019-10-17  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/83113
        PR fortran/89943
        * gfortran.dg/pr89943_1.f90: New test.
        * gfortran.dg/pr89943_2.f90: Ditto.
        * gfortran.dg/pr89943_3.f90: Ditto.
        * gfortran.dg/pr89943_4.f90: Ditto.

Added:
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/pr89943_1.f90
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/pr89943_2.f90
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/pr89943_3.f90
    branches/gcc-9-branch/gcc/testsuite/gfortran.dg/pr89943_4.f90
Modified:
    branches/gcc-9-branch/gcc/fortran/ChangeLog
    branches/gcc-9-branch/gcc/fortran/decl.c
    branches/gcc-9-branch/gcc/testsuite/ChangeLog