distutils question-> Why data_files listed in setup.py being ignored?! How fix?

[Christian Seberino]

I have a setup.py with something like this:
        

import glob

...                                                                        
                                                                                
setup( ...,
       ...,
       data_files = [ ( "pixmaps", glob.glob("pixmaps/*.xpm") ) ]
       ....
     )
                                                                                
The tarball I made with "python setup.py sdist" looks good except
none of the data_files show up in tarball?!?!
                                                                                
How fix?
                                                                                
Chris