external library as a part of xulrunner

Hi All.

I have an external library with header files compiled for android. This lib is something like T9 (predictive text) for mobiles.
Could anyone answer:
Is it possible to add this lib (or any other compiled lib) to libxul for FFOS and expose its API for javascript?
Or do I need to have a source code of that lib to port it into a new XPCOM component?

Any tips or code samples are very appreciated.

Thanks in advance.