[CentOS] semi-OT: anyone into setup.py?

I'm trying to patch this package that I'm rpmbuilding, and its setup.py
does not link a library for one extension that it dies if it doesn't have.
Note that ldd is fooled, because there's a declaration, so it says
everything is fine... but without a definition, it dies, and that's in the
other library....

Feel free to contact me offlist.

       mark