[CMake] Python Extension

[Rich Holm]

Are there any rules to create python extensions with an extension of
.pyd in windows?   Right now, my CMakeLists.txt just build .dll files.

Also, how would one make a python extension under UNIX?  Is it
easy to create links to a shared library under UNIX after the build?

Thanks.  I have the CMake book, but can't find any info on python
extensions and shared objects (other than libraries).

Cheers,
Rich