Hello, I guess you need the -dev version of libfltk which is usually an additional install. It looks that you only have the runtime which is fine except when you have to compile something on your own. Cheers, Malte -- Malte Steiner media art + development -www.block4.com- next event: 12.-15.3. Frankfurt Musikmesse booth B66 in hall 5.1 presentation of Minicomputer softwaresynthesizer _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user