[Bug preprocessor/33907] Empty macro definitions not considered equal

["rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from rguenther at suse dot de  2007-11-25 22:29 -------
Subject: Re:  Empty macro definitions not considered
 equal

On Sun, 25 Nov 2007, manu at gcc dot gnu dot org wrote:

> ------- Comment #7 from manu at gcc dot gnu dot org  2007-11-25 22:23 -------
> (In reply to comment #6)
> > 
> > But yes, there's probably nothing else than to close this bug.
> > 
> 
> Well you could make the error depend on the pedantic flag. This is a recurrent
> confusion: C++ does not enable pedantic-errors by default. It makes pedwarns as
> errors. -pedantic-errors is pedantic flag + pedwarns as errors. 

But C++ has -pedantic as default as well ;)

> If you can provide me with a better text for the comment (something about the
> part of the standard that requires us to give a diagnostic), I can update the
> patch, bootstrap it and regression test it.

Tom can probably do this.  But I belive the patch will not work,
as CPP_PEDANTIC is set to true by the C++ frontend now.

Richard.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33907