uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/tilestache/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, modestmaps
+, pillow
+, pycairo
+, python-mapnik
+, simplejson
+, werkzeug
+, isPy27
+}:
+
+buildPythonPackage rec {
+  pname = "tilestache";
+  version = "1.51.14";
+  disabled = !isPy27;
+
+  src = fetchPypi {
+    pname = "TileStache";
+    inherit version;
+    sha256 = "1qjrabl6qr7i6yj6v647ck92abcyklb0vmb6h6kj7x8v2cj5xbvk";
+  };
+
+  propagatedBuildInputs = [ modestmaps pillow pycairo python-mapnik simplejson werkzeug ];
+
+  meta = with lib; {
+    description = "A tile server for rendered geographic data";
+    homepage = "http://tilestache.org";
+    license = licenses.bsd3;
+  };
+
+}