* Disable XCB support in Cairo, since it's not really supported   currently   (http://lists.freedesktop.org/archives/xcb/2008-December/004140.html).
* Disable XCB support in Cairo, since it's not really supported
  currently
  (http://lists.freedesktop.org/archives/xcb/2008-December/004140.html).

svn path=/nixpkgs/branches/xorg-7.5/; revision=18030

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