Thank you for pointing that. It increments the number of people using CMAKE_REQUIRED_FLAGS "trick" to make it working with check_cxx_compiler_flag.
But my question is more about : - why they coded CHECK_CXX_COMPILER_FLAG this way? - is my usage valid or not? If not what should I do? If yes, is it a bug? Regards, Damien R. On 7 December 2017 at 10:35, Eric Noulard <eric.noul...@gmail.com> wrote: > > Not really answering the question but > did you try to use an existing CMake module for handling sanitizers config? > > I find this one https://github.com/arsenm/sanitizers-cmake very > effective, with > modern CMake target oriented features. > > > > > 2017-12-07 9:24 GMT+01:00 Damien R <damienrg+l...@gmail.com>: > >> Hi, >> >> I am trying to use CHECK_CXX_COMPILER_FLAG with cmake 3.9 to check if the >> compiler supports asan. >> The CMakeLists.txt is: >> cmake_minimum_required(VERSION 3.9) >> include(CheckCXXCompilerFlag) >> check_cxx_compiler_flag("-fsanitize=address" COMPILER_SUPPORT_FLAG) >> >> I always got: >> -- Performing Test COMPILER_SUPPORT_FLAG - Failed >> >> Even if the documentation say that CHECK_CXX_COMPILER_FLAG sets >> CMAKE_REQUIRED_DEFINITIONS by the name of the macro I thought that it would >> work. >> Can you tell me why CHECK_CXX_COMPILER_FLAG use >> CMAKE_REQUIRED_DEFINITIONS instead of CMAKE_REQUIRED_FLAGS >> and what is the official way for checking this flag? >> >> Regards, >> >> Damien R. >> >> >> -- >> >> 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 >> > > > > -- > Eric >
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