> On 19 Dec 2016, at 09:51, James Turner <james.tur...@kdab.com> wrote:
> 
> In my case there is no feature_tests.cxx generated at all. 

For the benefit of posterity, Robert very kindly figured this out: the problem 
is I did not have CMP0025 set, and the minimum CMake version was set < 3.3

This breaks compiler feature detection with a custom Clang. Setting the policy 
to NEW makes everything work as expected.

Kind regards,
James

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James Turner - Senior Software Developer
KDAB - The Qt, C++ and OpenGL Experts




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