Major Description
Until very recently the swigged bindings code was not built on windows. When it was built it became apparent that some of the modules did not link because of missing symbols due to required libraries not linked into the final loadable module.
The real cause of this bug is that the compile options for these modules did not ensure that all symbols were resolved in them, which should be the case on Unix platforms too. If this issue had been spotted on Unix it need not have arisen on Windows.