[PATCH:libXcomposite] Remove unneeded dependencies from configure.ac & xcomposite.pc

[Dan Nicholson]

On Wed, Jun 30, 2010 at 10:53 PM, Alan Coopersmith
<alan.coopersmith at oracle.com> wrote:
> We only need Xfixes headers for the XserverRegion definition, don't
> need to link against it directly or require clients link against it,
> so only use CFLAGS from it in the Makefile, and only list it in
> Requires.private in the .pc file.
>
> Don't need libXext at all - no headers or functions from it are used.
>
> Also clean up some extra appearances of *_CFLAGS & *_LIBS that aren't needed.
>
> Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

I didn't really test it, but assuming your analysis of Xfixes usage is correct:

Reviewed-by: Dan Nicholson <dbn.lists at gmail.com>