[CMake] 'No known features for CXX compiler' warning with custom Clang

[James Turner]

> On 16 Dec 2016, at 22:59, Robert Maynard <robert.maynard at kitware.com> wrote:
> 
> That is odd. Inside your build/CMakeFiles should be a file called
> feature_tests.cxx, and that file is how we determine what features the
> clang compiler supports.
> 
> I would use that to determine why feature detection is failing, since
> currently it believes that none of the features listed in it are
> valid.
> 
> Now if the file is empty, that means we are looking at a CMake logic
> bug somewhere before this.

In my case there is no feature_tests.cxx generated at all. 

Kind regards,
James

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




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