The following issue has been SUBMITTED. ====================================================================== http://public.kitware.com/Bug/view.php?id=15443 ====================================================================== Reported By: David Demelier Assigned To: ====================================================================== Project: CMake Issue ID: 15443 Category: CMake Reproducibility: always Severity: major Priority: high Status: new ====================================================================== Date Submitted: 2015-03-13 04:42 EDT Last Modified: 2015-03-13 04:42 EDT ====================================================================== Summary: Unable to use target_compile_features with MinGW-w64 Description: The following CMakeLists.txt generates an error on MinGW-w64:
cmake_minimum_required(VERSION 3.2) project(test) add_executable(main main.cpp) target_compile_features( main PRIVATE cxx_constexpr ) This is the error: CMake Error at CMakeLists.txt:6 (target_compile_features): target_compile_features no known features for CXX compiler "GNU" version 4.9.2. Steps to Reproduce: 1. Try to use target_compile_features with MinGW-w64 Additional Information: It seems that Modules/Compiler/GNU-CXX.cmake has useless UNIX conditionals: Changing lines 47 and 50 to the following fix the problem: set(_result 0) if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8) _get_gcc_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES) endif() if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4) if (_result EQUAL 0) _get_gcc_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES) endif() if (_result EQUAL 0) _get_gcc_features(${CMAKE_CXX98_STANDARD_COMPILE_OPTION} CMAKE_CXX98_COMPILE_FEATURES) endif() endif() Please note that MinGW-w64 fully supports C++11 and C++14. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2015-03-13 04:42 David Demelier New Issue ====================================================================== -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers