[Fontconfig] Creating cachedir

[Patrick Lam]

Keith Packard wrote:
> On Tue, 2005-12-20 at 09:36 +0100, Josselin Mouette wrote:
> 
>>Indeed, it just means the package maintainers will have to clean the
>>stale cache files in the post-installation scripts.
> 
> fc-cache should probably do this automatically as a part of generating
> the new cache file.

I've implemented code for fc-cache which will, if the cache is invalid
(as in Josselin's example), erase both the cache in the directory and in
/var/cache.  I'll commit it shortly.

pat