The QWSSocket class subclasses QTcpSocket by default, hence the reason for linking against the QtNetwork module. However, Brisbane added the ability to remove this dependancy by removing QT_NO_SXE from the qconfig.h file. In this case, the base class falls back to QUnixSocket which is a private class in QtGui.

Although we can't change this default without breaking BC, it would be nice, if we cleaned this up a bit so customers could add a define at configure time to fall back to QUnixSocket instead and avoid the dependancy on QtNetwork.