[Bug fortran/119856] Missing commas in I/O formats not diagnosed by default at compile time.

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119856

--- Comment #17 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by Jerry DeLisle
<jvdeli...@gcc.gnu.org>:

https://gcc.gnu.org/g:21e0a742e7b70dcb9d8bed87a7d1b1b77b48b364

commit r15-9755-g21e0a742e7b70dcb9d8bed87a7d1b1b77b48b364
Author: Jerry DeLisle <jvdeli...@gcc.gnu.org>
Date:   Sat May 31 08:57:22 2025 -0700

    Fortran: Fix handling of parsed format strings.

            Previously parsed strings with errors were being cached such
            that subsequent use of the format string were not being
            checked for errors.

            PR libfortran/119856

    libgfortran/ChangeLog:

            * io/format.c (parse_format_list): Set the fmt->error
            message for missing comma.
            (parse_format): Do not cache the parsed format string
            if a previous error ocurred.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/pr119856.f90: New test.

    (cherry picked from commit 5ff48aabf76c8913c013f233d3f42bb217a16e7b)