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/xlib/default.nix

@@ -0,0 +1,50 @@
+{ lib, stdenv
+, buildPythonPackage
+, fetchFromGitHub
+, six
+, setuptools-scm
+, xorg
+, python
+, mock
+, nose
+, pytestCheckHook
+, util-linux
+}:
+
+buildPythonPackage rec {
+  pname = "xlib";
+  version = "0.31";
+
+  src = fetchFromGitHub {
+    owner = "python-xlib";
+    repo = "python-xlib";
+    rev = version;
+    sha256 = "155p9xhsk01z9vdml74h07svlqy6gljnx9c6qbydcr14lwghwn06";
+  };
+
+  nativeBuildInputs = [ setuptools-scm ];
+  buildInputs = [ xorg.libX11 ];
+  propagatedBuildInputs = [ six ];
+
+  doCheck = !stdenv.isDarwin;
+  checkInputs = [
+    pytestCheckHook
+    mock
+    nose
+    util-linux
+    xorg.xauth
+    xorg.xorgserver
+  ];
+
+  disabledTestPaths = [
+    # requires x session
+    "test/test_xlib_display.py"
+  ];
+
+  meta = with lib; {
+    description = "Fully functional X client library for Python programs";
+    homepage = "http://python-xlib.sourceforge.net/";
+    license = licenses.gpl2Plus;
+  };
+
+}