[Xcb] bugfix and cleanups for auto* stuff

[Alan Coopersmith]

On 07/25/13 03:02 AM, Daniel Martin wrote:
> My knowledge on the whole auto* stuff is very limited. I hope those
> changes don't break anything else.

I can't say that I know all that much more, certainly had to look up
AC_CONFIG_AUX_DIR() & the autom4te cache stuff as that was new to me,
but everything I see looks reasonable, so for the series:

Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>

-- 
	-Alan Coopersmith-              alan.coopersmith at oracle.com
	 Oracle Solaris Engineering - http://blogs.oracle.com/alanc