Maintain a separate ccache directory for each target.
authorMark Wooding <mdw@distorted.org.uk>
Sat, 21 Sep 2019 19:08:07 +0000 (20:08 +0100)
committerMark Wooding <mdw@distorted.org.uk>
Sat, 21 Sep 2019 19:08:07 +0000 (20:08 +0100)
Otherwise they interfere with each other.  How did I not notice this
before?


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