X11 damaged region extension library

 libXdamage provides an X Window System client interface to the DAMAGE
 extension to the X protocol.
 .
 The Damage extension provides for notification of when on-screen regions have
 been 'damaged' (altered).
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This module can be found at
 git://anongit.freedesktop.org/git/xorg/lib/libXdamage