From 3512c3c5233463e8715be42aac96e95b16cb01b2 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 13 May 2014 18:11:17 +0200
Subject: [PATCH] haskell-ghc-vis: jailbreak to fix build with recent fgl and
 text libraries

---
 pkgs/development/libraries/haskell/ghc-vis/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/haskell/ghc-vis/default.nix b/pkgs/development/libraries/haskell/ghc-vis/default.nix
index a768a101145..be0b72aa963 100644
--- a/pkgs/development/libraries/haskell/ghc-vis/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-vis/default.nix
@@ -14,6 +14,7 @@ cabal.mkDerivation (self: {
     ensureDir "$out/share/ghci"
     ln -s "$out/share/$pname-$version/ghci" "$out/share/ghci/$pname"
   '';
+  jailbreak = true;
   meta = {
     homepage = "http://felsin9.de/nnis/ghc-vis";
     description = "Live visualization of data structures in GHCi";