From a650832b2cfa45dd97d4663c113a402251d1d765 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Fri, 5 Aug 2011 17:03:14 +0000
Subject: [PATCH] haskell-packages: added cabal2nix, a utility to convert Cabal
 files into Nix build instructions

Naturally, the tool generated its own build expression. :-)

svn path=/nixpkgs/trunk/; revision=28170
---
 .../libraries/haskell/cabal2nix/default.nix         | 13 +++++++++++++
 pkgs/top-level/haskell-packages.nix                 |  2 ++
 2 files changed, 15 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/cabal2nix/default.nix

diff --git a/pkgs/development/libraries/haskell/cabal2nix/default.nix b/pkgs/development/libraries/haskell/cabal2nix/default.nix
new file mode 100644
index 00000000000..fb00ef237aa
--- /dev/null
+++ b/pkgs/development/libraries/haskell/cabal2nix/default.nix
@@ -0,0 +1,13 @@
+{cabal}:
+
+cabal.mkDerivation (self : {
+  pname = "cabal2nix";
+  version = "1.2";
+  sha256 = "f60dbb36dc73351e1891d2b31ae66c465955c46b87eedb0928bcf61b9a7eff54";
+  propagatedBuildInputs = [];
+  meta = {
+    homepage = "http://github.com/peti/cabal2nix";
+    description = "Convert Cabal files into Nix build instructions";
+    license = self.stdenv.lib.licenses.bsd3;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 3c01c9b13d5..7446ea01382 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -405,6 +405,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   bytestringTrie = callPackage ../development/libraries/haskell/bytestring-trie {};
 
+  cabal2nix = callPackage ../development/libraries/haskell/cabal2nix {};
+
   cairo = callPackage ../development/libraries/haskell/cairo {
     inherit (pkgs) cairo zlib;
   };