Re: _GL_UNUSED

[Paul Eggert]

Juanma Barranquero wrote:
> It's OK to use _GL_UNUSED in the sources, or there's some preference
> not to use it for some reason?

The typical practice is to configure with --enable-gcc-warnings. 
Turning on all GCC warnings can cause more trouble than it cures. 
Selectively silencing them with the likes of _GL_UNUSED can clutter the 
code particularly in the presence of ifdefs; I've tried to do that sort 
of thing only for warnings where the benefits are worth the costs.

Admittedly this is often a judgment call.  If --enable-gcc-warnings 
isn't enabling a diagnostic that would be useful for Emacs development, 
then we can change it so that it does.