[Merge] lp:~bregma/cmake/lp-1247787 into lp:ubuntu/cmake

[Timo Jyrinki]

Review: Approve

Using this CMake resolves the problem with lp:unity, and it'd be needed to unblock compiling unity (and to continue with the autopilot 1.4 transition as well).
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https://code.launchpad.net/~bregma/cmake/lp-1247787/+merge/193961
Your team Ubuntu branches is requested to review the proposed merge of lp:~bregma/cmake/lp-1247787 into lp:ubuntu/cmake.