upcoming xi2 and current XTest implementation

[Alan Coopersmith]

Simon Thum wrote:
> The fact that xextproto contains  a library header seems somewhat odd to 
> me, I guess it's historical.

In the monolith, many of the extensions mixed wire protocol, client library,
and server internal definitions in the same header files, and we didn't
untangle the mess when modularizing, though have cleaned up some since,
and need to do more still.   (xextproto is of course all historical, since
it's a grouping of the extensions historically covered by libXext instead
of per-extension libraries.)

-- 
	-Alan Coopersmith-           alan.coopersmith at sun.com
	 Sun Microsystems, Inc. - X Window System Engineering