[ccache] State of ccache on Windows

[Andrew Stubbs]

Hi all,

Are there any known issues with Ccache on Windows?

It builds, which is very nice, but I've not yet had time to put it 
through its paces. Even when I do I'm not sure how I'd satisfy myself 
that there are no hidden corner cases to bite me later?

There's no statement in the manual, and the news/release notes suggest 
that support was incomplete 3 years ago, but there are no newer notes.

Thanks in advance

Andrew