QT += network QNETWORK_SRC = $$QT_SOURCE_TREE/src/network INCLUDEPATH += $$QNETWORK_SRC win32 { wince*: { LIBS += -lws2 } else { LIBS += -lws2_32 } } unix:contains(QT_CONFIG, reduce_exports) { SOURCES += $$QNETWORK_SRC/socket/qnativesocketengine_unix.cpp SOURCES += $$QNETWORK_SRC/socket/qnativesocketengine.cpp SOURCES += $$QNETWORK_SRC/socket/qabstractsocketengine.cpp }