Backported from X.Org:

    commit 0693083335185ce05ee64546151f3fc43ce98575
    Author: Lars Knoll <lars@trolltech.com>
    Date:   Mon Mar 6 21:00:09 2006 +0000

    render/picture.c Correctly initialize devPrivates variable in source only
        pictures to 0
    miext/cw/cw.h Don't try to access devPrivates of source only pictures
Backported-from-NX-by: Ulrich Sibiller <uli42@gmx.de>