bug with gtk_events_pending in win32 & solaris implementation?

[Cevat Ustun <ustun Glue umd edu>]

I have a program that draws things in a window a la scribble-simple
with the following control loop structure:

while (gtk_events_pending()==FALSE)
 main_drawing_loop

So every time a mouse click is registered, stuff is drawn in the
window etc. 

The program works perfectly in linux, but:
1) with win32, gtk_events_pending()==FALSE is _never_ true
2) with SunOS, only about 200 iterations are done before 
   the loop quits. 

Is there a bug in the gtk implementation for these two platforms? 

Cevat