[ccache] ccache - .d files with absolute system header paths

[Joel Rosdahl]

Hi Karanam,

> From just ccache's point of view, is there a way to force relative paths into
the
> .d files at all?

Yes, ccache version 3.3 and newer knows how to do this. See the release
notes for ccache 3.3: http://ccache.samba.org/releasenotes.html#_ccache_3_3

-- Joel