override diagrams-core

diagrams/diagrams-core#113

nix/haskell/overrides.nix

@@ -2,6 +2,7 @@ self: super: {
 
 active = self.callPackage (import ./overrides/active.nix) {};
 aeson-optics = self.callPackage (import ./overrides/aeson-optics.nix) {};
+diagrams-core = self.callPackage (import ./overrides/diagrams-core.nix) {};
 dsv = self.callPackage (import ./overrides/dsv.nix) {};
 dual-tree = self.callPackage (import ./overrides/dual-tree.nix) {};
 grab = self.callPackage (import ./overrides/grab.nix) {};

nix/haskell/overrides/diagrams-core.nix

@@ -0,0 +1,21 @@
+{ mkDerivation, adjunctions, base, containers, distributive
+, dual-tree, fetchgit, lens, linear, monoid-extras, mtl
+, profunctors, semigroups, stdenv, unordered-containers
+}:
+mkDerivation {
+  pname = "diagrams-core";
+  version = "1.4.2";
+  src = fetchgit {
+    url = "https://github.com/chris-martin/diagrams-core";
+    sha256 = "1x335pwvw6m44w2ykxdjq9dfck7pqyi1271qrwpfvq9g75j2871a";
+    rev = "1cb7e0a1745053c37def2f09b0e68268583dada4";
+    fetchSubmodules = true;
+  };
+  libraryHaskellDepends = [
+    adjunctions base containers distributive dual-tree lens linear
+    monoid-extras mtl profunctors semigroups unordered-containers
+  ];
+  homepage = "http://projects.haskell.org/diagrams";
+  description = "Core libraries for diagrams EDSL";
+  license = stdenv.lib.licenses.bsd3;
+}