I'm using libqapt in my project, and I have import libqapt by cmake `find_package(QApt)` But the variable ${QApt_LIBRARIES} and ${QApt_INCLUDE_DIRS} is empty.
It defines an imported target `QApt::Main` https://cmake.org/cmake/help/git-master/manual/cmake-packages.7.html#config-file-packages