Re: Disable -Werror when error attribute generates warnings

[Grégoire Sutre]

Colin Watson wrote:

> Instead of this, why not only use the attribute if it's available? I
> couldn't find an entry about it in GCC's human-readable change
> summaries, but support was committed on 2007-09-23 so I think it's
> available from GCC 4.3.
>
> I use this GNUC_PREREQ approach in other projects and rather like it. It
> could be extended to cover our other uses of attributes quite easily.

Nice trick :-)

I confirm that this patch works with gcc 4.1.3 on NetBSD.  And it's 
definitely better than completely disabling -Werror...

Thanks,

Grégoire