From da4ca1636038fa723e8696626f5e019c7bee0735 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 27 Nov 2012 13:59:21 +0100
Subject: [PATCH] haskell-multiset: add version 0.2.2

The new version is currently unused, though, because it compiles only
with GHC 7.6.1 or later.
---
 .../haskell/multiset/{default.nix => 0.2.1.nix}     |  0
 .../libraries/haskell/multiset/0.2.2.nix            | 13 +++++++++++++
 pkgs/top-level/haskell-packages.nix                 |  4 +++-
 3 files changed, 16 insertions(+), 1 deletion(-)
 rename pkgs/development/libraries/haskell/multiset/{default.nix => 0.2.1.nix} (100%)
 create mode 100644 pkgs/development/libraries/haskell/multiset/0.2.2.nix

diff --git a/pkgs/development/libraries/haskell/multiset/default.nix b/pkgs/development/libraries/haskell/multiset/0.2.1.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/multiset/default.nix
rename to pkgs/development/libraries/haskell/multiset/0.2.1.nix
diff --git a/pkgs/development/libraries/haskell/multiset/0.2.2.nix b/pkgs/development/libraries/haskell/multiset/0.2.2.nix
new file mode 100644
index 00000000000..16fcf155747
--- /dev/null
+++ b/pkgs/development/libraries/haskell/multiset/0.2.2.nix
@@ -0,0 +1,13 @@
+{ cabal }:
+
+cabal.mkDerivation (self: {
+  pname = "multiset";
+  version = "0.2.2";
+  sha256 = "1g14c1zm4rdc8nxvb69k98h542wi24q2lpba1gpqjqspk4d0sjmn";
+  meta = {
+    description = "The Data.MultiSet container type";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.andres ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 04350166c86..39bde1fc9f1 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1209,7 +1209,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   multirec = callPackage ../development/libraries/haskell/multirec {};
 
-  multiset = callPackage ../development/libraries/haskell/multiset {};
+  multiset_0_2_1 = callPackage ../development/libraries/haskell/multiset/0.2.1.nix {};
+  multiset_0_2_2 = callPackage ../development/libraries/haskell/multiset/0.2.2.nix {};
+  multiset = self.multiset_0_2_1;   # later versions work only with ghc 7.6 and beyond
 
   murmurHash = callPackage ../development/libraries/haskell/murmur-hash {};