Re: assign numbers to warnings; treat selected warnings as errors

["Steven Bosscher" <stevenb dot gcc at gmail dot com>]

On 27 Apr 2007 08:50:57 -0500, Gabriel Dos Reis <gdr@cs.tamu.edu> wrote:
> Thomas Koenig <tkoenig@alice-dsl.net> writes:
>
> | [adjusting Subject and also forwarding to gcc@]
> |
> | On Wed, 2007-04-18 at 12:12 -0700, Vivek Rao wrote:
> | > Here is a feature of g95 that I would like to see in
> | > gfortran. G95 assigns numbers to warnings and allows
> | > selected warnings to be treated as errors.
> |
> | [...]
> |
> | > g95 -Wall -Wextra -Werror=113,115,137 xunused.f90
> | >
> | > turns those warnings into errors.
> | >
> | > Gfortran does not assign numbers to warnings, and the
> | > option -Werror turns ALL warnings into errors. I'd
> | > like finer control.
> |
> | This does sound like a useful feature, not only for
> | gfortran, but for all of gcc.
> |
> | Thoughts, comments?
>
> The is a front end-independent infrastructure in place to name
> diagnostics and filer them -- used by most GCC front ends.  Only
> Gfortran seems to build its own ghetto.

[ Please don't use such offensive wording, there is no
"ghetto-building going on here. ]

The front-end independent infrastructure is not independent enough to
support the format of errors/warnings that gfortran writes out.
Gfortran writes out the line in the source file that has the issue,
and uses carrets to pin-point the location of the issue.  The language
independent infrastructure unfortunately still cannot do this.

Gr.
Steven