[Bug fortran/54679] Erroneous "Expected P edit descriptor" in conjunction with L descriptor

["jvdelisle at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54679

--- Comment #7 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Author: jvdelisle
Date: Mon Oct 31 19:59:04 2016
New Revision: 241720

URL: https://gcc.gnu.org/viewcvs?rev=241720&root=gcc&view=rev
Log:
2016-10-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/54679
        * io.c (check_format): Adjust checks for FMT_L to treat a zero
        width as an extension, giving warnings or error as appropriate.
        Improve messages.
        PR libgfortran/54679
        * io/format.c (parse_format_list): Adjust checks for FMT_L to
        treat a zero width as an extension, giving warnings or error
        as appropriate. Improve messages.
        PR fortran/54679
        * gfortran.dg/fmt_l.f90: Update test.
        * gfortran.dg/fmt_l0.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/fmt_l0.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/io.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/fmt_l.f90
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/format.c