[patch fortran/44054] handle %L using the common diagnostics machinery

[Tobias Burnus]

Manuel López-Ibáñez wrote:
> Exactly what the subject says. I'm not sure if this is appropriate for
> stage3, I'll leave that to the Fortran maintainers.
>
> Bootstrapped & regression tested on x86_64-linux-gnu.

Looks good to me - and is a rather simple patch.
Thanks!

Tobias

> gcc/fortran/ChangeLog:
>
> 2014-11-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
>
>      PR fortran/44054
>      * decl.c (gfc_verify_c_interop_param): Use gfc_error_now_2.
>      (gfc_set_constant_character_len): Use gfc_warning_now_2.
>      * resolve.c (resolve_ordinary_assign): Likewise.
>      * gfortran.h (warn_character_truncation): Do not declare here.
>      * error.c (gfc_format_decoder): Handle %L.
>      * lang.opt (Wcharacter-truncation): Add Var and LangEnabledBy.
>      * options.c (gfc_init_options): Do not handle
>      warn_character_truncation explicitly.
>      (set_Wall): Likewise.
>      (gfc_handle_option): Likewise.