Hi! I'm not especially sure about mac, but under linux I'd say you need a pthread library (glibc-package libpthread.so) and jack. You'd also need the libs coming with linuxsampler liblscp and libgig, of course. Besides that you'd probably need something for a GUI, if you plan to use one. That might be a simple x-environment and perhaps some standard socket or networking library. If you already have some native-linux software installed on you mac, you should have those. HTH, if not anyone there to correct me me? Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net - the Linux TextBased Studio guide