"Dr. Rene Hexel" <rh@vip.at> writes:
> 
> "Johnny C. Lam" wrote:
> 
> > I've seen many configure scripts that conditionally set certain
> > ac_cv_* values depending on whether other libraries were found or not.
> 
>   That's okay.  The point is that all these ac_cv_* then are present in
> config.cache and can easily be set to "no" by a post-processing script. 
> That's a lot easier than parsing the configure script itself by such a
> script in order to create config.cache.

No, I think you missed my point.  The config.cache generated depends
on what's already been found during the configure process.  The
resulting config.cache file won't contain all of the ac_cv_* values
possible.  For an example, see pkgsrc/graphics/magicpoint.

	Cheers,

     -- Johnny C. Lam <lamj@stat.cmu.edu>
        Department of Statistics, Carnegie Mellon University
        http://www.stat.cmu.edu/~lamj/