Hi, once COMPONENTS is added to a find_package statement, any REQUIRED statement ceases to have an effect:
cmake_minimum_required(VERSION 3.12) # find_package(FailsCorrectly REQUIRED) find_package(Qt REQUIRED COMPONENTS REQUIRED Qt5XYZ REQUIRED) find_package(Qt REQUIRED COMPONENTS Qt5XYZ ) find_package(Qt COMPONENTS REQUIRED Qt5XYZ ) find_package(Qt COMPONENTS Qt5XYZ REQUIRED) find_package(Qt COMPONENTS REQUIRED Qt5XYZ REQUIRED) find_package(Qt REQUIRED COMPONENTS Qt5XYZ REQUIRED) find_package(Qt REQUIRED COMPONENTS REQUIRED Qt5XYZ ) This CMakeLists.txt runs, despite Qt5XYZ not existing. How can this be made to fail as it should, why else would there be OPTIONAL_COMPONENTS as well? Regards GPF -- 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: https://cmake.org/mailman/listinfo/cmake