Usually, Qt plugins have that defined so it can be referenced when building apps with static plugins (i.e. Q_IMPORT_PLUGIN(QCleanlooksStylePlugin)), currently I don't see a way to include adwaita-qt style in build.
This is very easy to add with qmake but not sure about CMake, and if there is any Qt CMake extension for that.
Usually, Qt plugins have that defined so it can be referenced when building apps with static plugins (i.e.
Q_IMPORT_PLUGIN(QCleanlooksStylePlugin)
), currently I don't see a way to include adwaita-qt style in build. This is very easy to add with qmake but not sure about CMake, and if there is any Qt CMake extension for that.