http://bugs.winehq.org/show_bug.cgi?id=14595
--- Comment #10 from Ken Sharp kennybobs@o2.co.uk 2008-07-23 16:31:56 --- Yeah, the ccache cache is separate, "make clean" doesn't touch the cache.
If you have multiple machines with the same architecture, I highly recommend looking as distcc too, it's very simple to use.