Undefined symbol when freezing?

[Kevin Dahlhausen]

I'm trying to freeze a simple app w/an extension created with Swig.
Freeze generates the code and it compiles fine, but at runtime I get the
following:

Traceback (innermost last):
  File "./hello.py", line 4, in ?
    from fltk import *
  File "fltk.py", line 1, in ?
  File "fltk_pre.py", line 2, in ?
ImportError: /usr/local/lib/libswigpy.so: undefined symbol: PyType_Type

I'm not sure where to start looking to solve this.
Does anyone have any ideas?