After quite some time I had a anothe look at freecad and I think it developed very well and its in an usable state. For better usability I just successfully installed the original driver of the 3D Connexion SpaceMouse from http://www.3dconnexion.de/service/drivers.html.
Following the supplied readme I installed libXm and added a symlink:
To run a GUI-application without having access to a X-server is needed in many cases. The automated execution of an GUI-Test is such an example. But in this case, the needed solution concerning automation must be much more, than only calling the test. In best case, the same script can be executed on all different plattforms to run the test wihtout any x-server needed.