I don't know if this is the right place or not, but at any rate, the patch to the fsvb repository that was discussed on irc a week (or so) ago is attached. Basically, I just added the location of ffi.h for Fedora 12 to libffi-unix.lisp . Chances are it's not ready-for-prime-time since I'm not very good with lisp yet and have only really been able to test it on my machines, but hopefully it's useful.
Thanks,
--Joshua Holbrook