Swig - problem with visual c++ extension exercise

[S Green]

I keep getting an error unresolved external symbol initexample when
running
python setup.py build,

....for a basic example.cpp, c++ extension exercise for python.

I did however successfully create an example_wrap.c.

I how do I resolve this? 

(based this exercise on Siegfried Gonzi's news group message dated
16/04/2002, which used a setup.py to generate the necessary files)

cheers


S Green