CMake Warning \(dev\) at CMP0159-Common.cmake:[0-9]+ \(file\): Policy CMP0159 is not set: file\(STRINGS\) with REGEX updates CMAKE_MATCH_\. Run "cmake --help-policy CMP0159" for policy details\. Use the cmake_policy command to set the policy and suppress this warning\. For compatibility, CMake is leaving CMAKE_MATCH_ unchanged\. Call Stack \(most recent call first\): CMP0159-WARN.cmake:[0-9]+ \(include\) CMakeLists.txt:[0-9]+ \(include\) This warning is for project developers. Use -Wno-dev to suppress it.