From 52809ef21da334f3a9b1458dc53457fca95b1803 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 24 Nov 2014 14:44:26 +0100
Subject: [PATCH] haskell-twitter-conduit: patch build to load the edited Cabal
 file from Hackage

---
 .../libraries/haskell/twitter-conduit/default.nix        | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/haskell/twitter-conduit/default.nix b/pkgs/development/libraries/haskell/twitter-conduit/default.nix
index f7cc5c343b6..54d091ebb86 100644
--- a/pkgs/development/libraries/haskell/twitter-conduit/default.nix
+++ b/pkgs/development/libraries/haskell/twitter-conduit/default.nix
@@ -4,9 +4,15 @@
 , conduit, conduitExtra, dataDefault, doctest, filepath, hlint
 , hspec, httpClient, httpConduit, httpTypes, lens, lensAeson
 , monadControl, networkUri, resourcet, text, time, transformers
-, transformersBase, twitterTypes, twitterTypesLens
+, transformersBase, twitterTypes, twitterTypesLens, fetchurl
 }:
 
+let
+  editedCabalFile = fetchurl {
+    url = "http://hackage.haskell.org/package/twitter-conduit-0.1.0/twitter-conduit.cabal";
+    sha256 = "06z8dwvc17xhzpvb7cm0j6v63r5f3xirj36rr86bds3rw1zbnd0z";
+  };
+in
 cabal.mkDerivation (self: {
   pname = "twitter-conduit";
   version = "0.1.0";
@@ -25,6 +31,7 @@ cabal.mkDerivation (self: {
     resourcet text time transformers transformersBase twitterTypes
     twitterTypesLens
   ];
+  preConfigure = "cp ${editedCabalFile} twitter-conduit.cabal";
   meta = {
     homepage = "https://github.com/himura/twitter-conduit";
     description = "Twitter API package with conduit interface and Streaming API support";