From 9b166f0db22a1cecabc88013c66dd6e0691e9a06 Mon Sep 17 00:00:00 2001
From: "Alexander V. Nikolaev" <avn@avnik.info>
Date: Tue, 1 Dec 2015 13:45:06 +0200
Subject: [PATCH] Use absolute path to load libxcb.so

---
 pkgs/top-level/python-packages.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 537decb24ca0..5505ab0b1cb1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -21967,6 +21967,11 @@ in modules // {
       md5 = "fa13f3fee67c83016a1242982a7c8bda";
     };
 
+    patchPhase = ''
+      # Hardcode cairo library path
+      sed -e 's,ffi\.dlopen(,&"${pkgs.xorg.libxcb}/lib/" + ,' -i xcffib/__init__.py
+    '';
+
     propagatedBuildInputs = [ self.cffi self.six ];
 
     meta = {