HEADERS += $$PWD/qdevicediscovery_p.h linux { contains(QT_CONFIG, libudev) { SOURCES += $$PWD/qdevicediscovery_udev.cpp INCLUDEPATH += $$QMAKE_INCDIR_LIBUDEV LIBS_PRIVATE += $$QMAKE_LIBS_LIBUDEV # Use our own define. QT_NO_LIBUDEV may not be set on non-Linux systems. DEFINES += QDEVICEDISCOVERY_UDEV } else: contains(QT_CONFIG, evdev) { SOURCES += $$PWD/qdevicediscovery_static.cpp } else { SOURCES += $$PWD/qdevicediscovery_dummy.cpp } } else { SOURCES += $$PWD/qdevicediscovery_dummy.cpp }