# The module finds its dependencies find_package(Qt5 COMPONENTS Core DoesNotExist ) if (Qt5_FOUND) message(SEND_ERROR "Qt5 umbrella package found, though it should not be!") endif() if (NOT Qt5Core_FOUND) message(SEND_ERROR "Qt5Core package not found!") endif() if (Qt5DoesNotExist_FOUND) message(SEND_ERROR "Non-existent package found!") endif()