CMakeLists.txt require at least CMake 3.16.0 to use FindKF5.cmake
cmake_minimum_required should be the first non comment source code line in the top level CMakeLists.txt. Fix issue "Your project should require at least CMake 3.16.0 to use FindKF5.cmake Call Stack (most recent call first): ~/kde/usr/share/ECM/find-modules/FindKF5.cmake:30 (ecm_find_package_version_check) CMakeLists.txt:15 (find_package)".