[cmake-developers] COMPILE_FEATURES, Mac and non-Apple clang versions

[René J.V. Bertin]

Hi,

I just had a run-in with a CMake file from Qt5 in a project I've been building with a locally built Clang 3.9 version, affectionately called clang-mp-3.9 . I got the cryptic message

 CMake Error in src/platformtheme/CMakeLists.txt:
   No known features for CXX compiler

   "Clang"

   version 3.9.0.


Would you consider adding support for non-Apple clang versions on Mac too, and who would best request that, a Qt dev who considers the cxx_decltype test crucial, or the 1st user for whom that breaks his builds (i.e. me)?

I see this has already come up for HB:
https://cmake.org/pipermail/cmake/2016-December/064719.html


Thanks,
René Bertin