QMAKE_LIBS += $$QMAKE_LIBS_OPENVG QMAKE_LFLAGS += $$QMAKE_LFLAGS_OPENVG contains(QT_CONFIG, openvg_on_opengl) { QMAKE_LIBS += $$QMAKE_LIBS_OPENGL QMAKE_LFLAGS += $$QMAKE_LFLAGS_OPENGL }