[Paraview] Relative Paths In Cache Init and GUI XML Files (repost)

[Kent Eschenberg]

In the cache initialization file for cmake I'd like to provide the source 
directory for an external module as a relative path so that the 
initialization file is somewhat portable. I've tried the obvious such as a 
path relative to the cache initialization file itself with no success. Is 
there a way to do this?

The same question arises in the remote module's GUI XML file where it gives 
the path to the corresponding server manager XML file.

Thanks!
Kent
Pittsburgh Supercomputing Center