[Patch, Fortran] PR 69495: unused-label warning does not tell which flag triggered it

[Janus Weil]

>> The patch is OK for trunk.
>
> thanks a lot. Will commit soon.

Committed as r241870. Thanks again.

Cheers,
Janus




>> On 5 November 2016 at 10:15, Janus Weil <janus@gcc.gnu.org> wrote:
>>> Hi all,
>>>
>>> here is a patch that I had submitted already in February (see
>>> https://gcc.gnu.org/ml/fortran/2016-02/msg00011.html). Unfortunately
>>> it was never approved and I got distracted with other things and
>>> forgot about it.
>>>
>>> It's a diagnostics patch, which makes sure that the responsible flag
>>> is printed in several warning messages (for which this was still
>>> missing). As a small extra the patch also mentions the -Wpedantic flag
>>> in the gfortran documentation.
>>>
>>> Fortunately the patch still applies cleanly and regtests without
>>> failures on x86_64-linux-gnu. Ok for trunk?
>>>
>>> Cheers,
>>> Janus
>>>
>>>
>>> 2016-11-05  Janus Weil  <janus@gcc.gnu.org>
>>>         Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
>>>
>>>     PR fortran/69495
>>>     * invoke.texi: Mention -Wpedantic as an alias of -pedantic.
>>>     * check.c (gfc_check_transfer): Mention responsible flag in warning
>>>     message.
>>>     * frontend-passes.c (do_warn_function_elimination): Ditto.
>>>     * resolve.c (resolve_elemental_actual): Ditto.
>>>     (resolve_operator): Ditto.
>>>     (warn_unused_fortran_label): Ditto.
>>>     * trans-common.c (translate_common): Ditto.
>>>
>>>
>>> 2016-11-05  Janus Weil  <janus@gcc.gnu.org>
>>>         Dominique d'Humieres  <dominiq@lps.ens.fr>
>>>
>>>     PR fortran/69495
>>>     * gfortran.dg/elemental_optional_args_6.f90: Use -Wpedantic flag.
>>
>>
>>
>> --
>> The difference between genius and stupidity is; genius has its limits.
>>
>> Albert Einstein