From 8dd9fd7b20987878ff06a122465f1a61fe1c3f71 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Fri, 2 Jan 2015 15:32:21 -0600
Subject: [PATCH] haskellPackages.intern: new expression

---
 .../libraries/haskell/intern/default.nix        | 17 +++++++++++++++++
 pkgs/top-level/haskell-packages.nix             |  2 ++
 2 files changed, 19 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/intern/default.nix

diff --git a/pkgs/development/libraries/haskell/intern/default.nix b/pkgs/development/libraries/haskell/intern/default.nix
new file mode 100644
index 00000000000..628dc491d9f
--- /dev/null
+++ b/pkgs/development/libraries/haskell/intern/default.nix
@@ -0,0 +1,17 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, hashable, text, unorderedContainers }:
+
+cabal.mkDerivation (self: {
+  pname = "intern";
+  version = "0.9.1.3";
+  sha256 = "1629m3an18m3nqxq40mg9cn0c6rma1wm3jr7kn6kqpw4xq53zvvp";
+  jailbreak = true;
+  buildDepends = [ hashable text unorderedContainers ];
+  meta = {
+    homepage = "http://github.com/ekmett/intern/";
+    description = "Efficient hash-consing for arbitrary data types";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 5d926ccebe9..0a0cf4f32ee 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1448,6 +1448,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   interlude = callPackage ../development/libraries/haskell/interlude {};
 
+  intern = callPackage ../development/libraries/haskell/intern {};
+
   interpolate = callPackage ../development/libraries/haskell/interpolate {};
 
   interpolatedstringPerl6 = callPackage ../development/libraries/haskell/interpolatedstring-perl6 {};