Matt J. Ingalls wrote:
 > yes the example files provided with fltk compile and work fine for me.

Therefore, I'm sure you will get FLTK work with MacCsound :)

I suspect that the obstacle that prevents it to work correctly is 
related to the different threads. The Fl::run() command is done in a 
thread different from that of the Csound engine. Is it possible that the 
crashes are related to thread synchronization issues? Have you you 
experimented with Fl::lock()/unlock()?

Gab