Check out Tie::PureDB for an example of how I did it.

"and it doesn't allow sharing with other (C) programs that might start using this library."

I wouldn't worry about that at all, especially since the library is small enough to be packaged with your XS wrapper.

MJD says you can't just make shit up and expect the computer to know what you mean, retardo! I run a Win32 PPM repository for perl 5.6x+5.8x. I take requests. ** The Third rule of perl club is a statement of fact: pod is sexy.