From cd3798c266086dfb4bdcd325e55f7ab9092a5551 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Mon, 16 Jun 2014 14:00:15 -0700
Subject: [PATCH] haskell-STMonadTrans: new expression

---
 .../libraries/haskell/STMonadTrans/default.nix      | 13 +++++++++++++
 pkgs/top-level/haskell-packages.nix                 |  2 ++
 2 files changed, 15 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/STMonadTrans/default.nix

diff --git a/pkgs/development/libraries/haskell/STMonadTrans/default.nix b/pkgs/development/libraries/haskell/STMonadTrans/default.nix
new file mode 100644
index 00000000000..d533c167f6c
--- /dev/null
+++ b/pkgs/development/libraries/haskell/STMonadTrans/default.nix
@@ -0,0 +1,13 @@
+{ cabal, mtl }:
+
+cabal.mkDerivation (self: {
+  pname = "STMonadTrans";
+  version = "0.3.2";
+  sha256 = "1cl5bsc5mr3silcmbjylgw5qa04pf2np9mippxnsa4p3dk089gkh";
+  buildDepends = [ mtl ];
+  meta = {
+    description = "A monad transformer version of the ST monad";
+    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 256e51bf40e..755fbfc24a9 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2116,6 +2116,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   stmConduit = callPackage ../development/libraries/haskell/stm-conduit {};
 
+  STMonadTrans = callPackage ../development/libraries/haskell/STMonadTrans {};
+
   stmStats = callPackage ../development/libraries/haskell/stm-stats {};
 
   storableComplex = callPackage ../development/libraries/haskell/storable-complex {};