[ccache] Configuration file plan

[Joel Rosdahl]

On 2011-04-07 02:30, Martin Pool wrote:
> I would think about not putting ccache.conf inside .ccache, because
> that directory might often be excluded from backups or in some other
> way treated as disposable.  Aside from that it sounds really good.

I'd prefer the configuration to be tied to the cache, so it will be hard
to do it another way given the current cache directory layout. I guess
the only reasonable alternative is $(dirname $cache_dir)/ccache.conf.

-- Joel