gEDA-dev: Compositing with gschem

[Ales Hvezda]

> I was trying to figure out where I'd got a nasty bug in my code just
> now... and it turns out that gschem does NOT play nicely with a 3D
> compositing desktop.
> 

That's just sad.  gschem is nothing more than an application that 
just talks to the X server via a few layers ending in Xlib.  Maybe 
compositing broke/affects XOR rendering (if so then gEDA/gaf is in for
quite a bit of hurt in a few years)?  

-Ales