Packaging JOGL projects to be cross-platform?

Thanks again for the reply. Putting all of the natives in the ProcessingClasspath.jar worked like a charm! This was actually my end goal anyway; I'm not sure why I didn't try that first!

Ok, I can port Sven's bash script to Ant and treat other combinations of OS / architecture.

I've just posted an example of (incomplete) Ant macro to do that:
https://jogamp.org/bugzilla/show_bug.cgi?id=845#c5