From 63655c8fd82d2c1eded497508fb08bfd8a848c2d Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 25 Apr 2013 13:35:37 +0200
Subject: [PATCH] haskell-diagrams-lib: jailbreak to fix build with recent
 NumInstances library

---
 pkgs/development/libraries/haskell/diagrams/lib.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/haskell/diagrams/lib.nix b/pkgs/development/libraries/haskell/diagrams/lib.nix
index ae466ad26234..fc99e80ddad1 100644
--- a/pkgs/development/libraries/haskell/diagrams/lib.nix
+++ b/pkgs/development/libraries/haskell/diagrams/lib.nix
@@ -10,6 +10,7 @@ cabal.mkDerivation (self: {
     active colour dataDefault diagramsCore monoidExtras newtype
     NumInstances semigroups vectorSpace
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://projects.haskell.org/diagrams";
     description = "Embedded domain-specific language for declarative graphics";