Adding redshift; it changes the color temperature of your screen gradually to match the lighting conditions

svn path=/nixpkgs/trunk/; revision=25686

pkgs/applications/misc/redshift/default.nix

@@ -0,0 +1,28 @@
+{ fetchurl, stdenv,
+  libX11, libXrandr, libXxf86vm, libxcb, pkgconfig, python,
+  randrproto, xcbutil, xf86vidmodeproto }:
+
+stdenv.mkDerivation rec {
+  name = "redshift";
+  version = "1.6";
+  src = fetchurl {
+    url = "http://launchpad.net/${name}/trunk/${version}/+download/${name}-${version}.tar.bz2";
+    sha256 = "0g46zhqnx3y2fssmyjgaardzhjw1j29l1dbc2kmccw9wxqfla1wi";
+  };
+
+  buildInputs = [ libX11 libXrandr libXxf86vm libxcb pkgconfig python
+                  randrproto xcbutil xf86vidmodeproto ];
+
+  meta = {
+    description = "changes the color temperature of your screen gradually";
+    longDescription = ''
+      The color temperature is set according to the position of the
+      sun. A different color temperature is set during night and
+      daytime. During twilight and early morning, the color
+      temperature transitions smoothly from night to daytime
+      temperature to allow your eyes to slowly adapt.
+      '';
+    license = "GPLv3+";
+    homepage = "http://jonls.dk/redshift";
+  }; 
+}

pkgs/top-level/all-packages.nix

@@ -7162,9 +7162,14 @@ let
         pkgs_for_46.newScope pkgs_for_46.kde46;
   };
 
+  redshift = callPackage ../applications/misc/redshift {
+    inherit (xorg) libX11 libXrandr libxcb randrproto libXxf86vm
+      xf86vidmodeproto;
+  };
+
   oxygen_gtk = callPackage ../misc/themes/gtk2/oxygen-gtk { 
-        inherit (gtkLibs) glib gtk;
+    inherit (gtkLibs) glib gtk;
-	};
+  };
 
   xfce = xfce4;