From 64cdcd8812ac33b6e8c7a26af8863a668035f942 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 29 Oct 2009 15:26:39 +0000
Subject: [PATCH] * 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
---
 pkgs/development/libraries/cairo/default.nix | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/libraries/cairo/default.nix b/pkgs/development/libraries/cairo/default.nix
index 8d73dbb6f437..dc8bb2a9b523 100644
--- a/pkgs/development/libraries/cairo/default.nix
+++ b/pkgs/development/libraries/cairo/default.nix
@@ -1,12 +1,14 @@
 { postscriptSupport ? true
 , pdfSupport ? true
 , pngSupport ? true
+, xcbSupport ? false
 , stdenv, fetchurl, pkgconfig, x11, fontconfig, freetype
-, zlib, libpng, pixman, libxcb, xcbutil
+, zlib, libpng, pixman, libxcb ? null, xcbutil ? null
 }:
 
 assert postscriptSupport -> zlib != null;
 assert pngSupport -> libpng != null;
+assert xcbSupport -> libxcb != null && xcbutil != null;
 
 stdenv.mkDerivation rec {
   name = "cairo-1.8.8";
@@ -16,16 +18,17 @@ stdenv.mkDerivation rec {
     sha256 = "140w8pz2k2kmjdaav3rfy009rjf2hqycsnk7lq0nwnf4bpgd6l9w";
   };
 
-  buildInputs = [
-    pkgconfig x11 fontconfig pixman libxcb xcbutil
-  ];
+  buildInputs =
+    [ pkgconfig x11 fontconfig pixman ] ++ 
+    stdenv.lib.optionals xcbSupport [ libxcb xcbutil ];
 
   propagatedBuildInputs =
     [ freetype ] ++
     stdenv.lib.optional postscriptSupport zlib ++
     stdenv.lib.optional pngSupport libpng;
     
-  configureFlags = ["--enable-xcb"] ++
+  configureFlags =
+    stdenv.lib.optional xcbSupport "--enable-xcb" ++
     stdenv.lib.optional pdfSupport "--enable-pdf";
 
   preConfigure = ''