From 548dfdb832e5a999481f42936faace3de9dc59a8 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 2 Apr 2015 22:59:05 +0200
Subject: [PATCH] cabal-install: add old 1.18.x version for the benefit of
 ghc-mod users

Install "haskellngPackages.cabal-install_1_18_0_8" to run ghc-mod with
GHC 7.8.x. Resolves https://github.com/NixOS/nixpkgs/issues/7133.
---
 .../haskell-modules/hackage-packages.nix      | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 286a9470247..d9c10f29b56 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -27072,6 +27072,38 @@ self: {
        license = stdenv.lib.licenses.agpl3;
      }) {};
 
+  "cabal-install_1_18_0_8" = callPackage
+    ({ mkDerivation, array, base, bytestring, Cabal, containers
+     , directory, filepath, HTTP, HUnit, mtl, network, network-uri
+     , pretty, process, QuickCheck, random, stm, test-framework
+     , test-framework-hunit, test-framework-quickcheck2, time, unix
+     , zlib
+     }:
+     mkDerivation {
+       pname = "cabal-install";
+       version = "1.18.0.8";
+       sha256 = "1yx7vgyi2hs934z4ln7d8m2yrsakidb551ib01l9hxnmc3jbskwi";
+       isLibrary = false;
+       isExecutable = true;
+       buildDepends = [
+         array base bytestring Cabal containers directory filepath HTTP mtl
+         network network-uri pretty process random stm time unix zlib
+       ];
+       testDepends = [
+         array base bytestring Cabal containers directory filepath HTTP
+         HUnit mtl network network-uri pretty process QuickCheck stm
+         test-framework test-framework-hunit test-framework-quickcheck2 time
+         unix zlib
+       ];
+       postInstall = ''
+         mkdir $out/etc
+         mv bash-completion $out/etc/bash_completion.d
+       '';
+       homepage = "http://www.haskell.org/cabal/";
+       description = "The command-line interface for Cabal and Hackage";
+       license = stdenv.lib.licenses.bsd3;
+     }) {};
+
   "cabal-install" = callPackage
     ({ mkDerivation, array, base, bytestring, Cabal, containers
      , directory, extensible-exceptions, filepath, HTTP, HUnit, mtl