From 9d4ca3fa50aea65defaea50d99cd4f5e3e0d4143 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Mon, 26 May 2014 02:50:14 -0500
Subject: [PATCH] Add Haskell expression for machines

---
 .../libraries/haskell/machines/default.nix    | 19 +++++++++++++++++++
 pkgs/top-level/haskell-packages.nix           |  2 ++
 2 files changed, 21 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/machines/default.nix

diff --git a/pkgs/development/libraries/haskell/machines/default.nix b/pkgs/development/libraries/haskell/machines/default.nix
new file mode 100644
index 000000000000..cd69d9133a6c
--- /dev/null
+++ b/pkgs/development/libraries/haskell/machines/default.nix
@@ -0,0 +1,19 @@
+{ cabal, comonad, doctest, filepath, free, mtl, pointed
+, profunctors, semigroups, transformers, void
+}:
+
+cabal.mkDerivation (self: {
+  pname = "machines";
+  version = "0.2.5";
+  sha256 = "0745lhmfwq27nna517q7b82q59pda587wgh6840nw65syaj2qfhp";
+  buildDepends = [
+    comonad free mtl pointed profunctors semigroups transformers void
+  ];
+  testDepends = [ doctest filepath ];
+  meta = {
+    homepage = "http://github.com/ekmett/machines/";
+    description = "Networked stream transducers";
+    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 216037e74cdf..180f575ccd10 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1362,6 +1362,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   maccatcher = callPackage ../development/libraries/haskell/maccatcher {};
 
+  machines = callPackage ../development/libraries/haskell/machines {};
+
   markdownUnlit = callPackage ../development/libraries/haskell/markdown-unlit {};
 
   mathFunctions = callPackage ../development/libraries/haskell/math-functions {};