From 05f78d60c1857672f9405d09d5561d4fcddc6403 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 21 Jun 2014 15:04:25 +0200
Subject: [PATCH] haskell-network-transport-tcp: fix build with ghc < 7.8.2

---
 .../libraries/haskell/network-transport-tcp/default.nix       | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/haskell/network-transport-tcp/default.nix b/pkgs/development/libraries/haskell/network-transport-tcp/default.nix
index f4cab509016..728a40d8d3e 100644
--- a/pkgs/development/libraries/haskell/network-transport-tcp/default.nix
+++ b/pkgs/development/libraries/haskell/network-transport-tcp/default.nix
@@ -9,7 +9,9 @@ cabal.mkDerivation (self: {
   buildDepends = [ dataAccessor network networkTransport ];
   testDepends = [ network networkTransport networkTransportTests ];
   doCheck = false;
-  jailbreak = true;
+  patchPhase = ''
+    sed -i -e 's|network >=.*,|network,|' -e 's|network >=.*|network|' network-transport-tcp.cabal
+  '';
   meta = {
     homepage = "http://haskell-distributed.github.com";
     description = "TCP instantiation of Network.Transport";