--- setup.py-old	2005-10-05 18:34:20.000000000 -0500
+++ setup.py	2005-10-05 18:34:44.000000000 -0500
@@ -68,21 +68,21 @@
 
   def before_swig_sources(self, sources):
       new_sources = [ ]
       for source in sources:
           if source == 'mk-constants.py':
               self.make_file( (source,), 'constants.c', execfile, (source,) )
           else:
               new_sources.append(source)
       return new_sources
     
-  def swig_sources(self, sources):
+  def swig_sources(self, sources, extension=None):
   
       """Walk the list of source files in 'sources', looking for SWIG
       interface (.i) files.  Run SWIG on all that are found, and
       return a modified 'sources' list with SWIG source files replaced
       by the generated C (or C++) files.
       """
 
       sources = self.before_swig_sources(sources)
   
       new_sources = []