[Bug fortran/93309] Wrong error about duplicate implicit none

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93309

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tobias Burnus <bur...@gcc.gnu.org>:

https://gcc.gnu.org/g:b31f80231df9ce6d9b50c62d28b8d2a4654ef564

commit r10-6108-gb31f80231df9ce6d9b50c62d28b8d2a4654ef564
Author: Tobias Burnus <tob...@codesourcery.com>
Date:   Tue Jan 21 13:42:11 2020 +0100

    Fortran] PR93309 – permit repeated 'implicit none(external)'

            PR fortran/93309
            * interface.c (gfc_procedure_use): Also check parent namespace for
            'implict none (external)'.
            * symbol.c (gfc_get_namespace): Don't set has_implicit_none_export
            to parent namespace's setting.

            PR fortran/93309
            * gfortran.dg/external_implicit_none_2.f90: New.