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/rubymarshal/default.nix

@@ -0,0 +1,26 @@
+{ lib, buildPythonPackage, fetchPypi, hypothesis, isPy3k }:
+
+buildPythonPackage rec {
+  pname = "rubymarshal";
+  version = "1.2.7";
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "94aa84fa42393f773c8215fab679bd3b72bbdb9f7931643d3672184cde9981d9";
+  };
+
+  propagatedBuildInputs = [ hypothesis ];
+
+  # pypi doesn't distribute tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "rubymarshal" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/d9pouces/RubyMarshal/";
+    description = "Read and write Ruby-marshalled data";
+    license = licenses.wtfpl;
+    maintainers = [ maintainers.ryantm ];
+  };
+}