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/inkex/default.nix

@@ -0,0 +1,41 @@
+{ buildPythonPackage
+, inkscape
+, lxml
+, python
+}:
+
+buildPythonPackage {
+  pname = "inkex";
+  inherit (inkscape) version;
+
+  format = "other";
+
+  propagatedBuildInputs = [
+    lxml
+  ];
+
+  # We just copy the files.
+  dontUnpack = true;
+  dontBuild = true;
+
+  # No tests installed.
+  doCheck = false;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p "$out/${python.sitePackages}"
+    cp -r "${inkscape}/share/inkscape/extensions/inkex" "$out/${python.sitePackages}"
+
+    runHook postInstall
+  '';
+
+  meta = inkscape.meta // {
+    description = "Inkscape Extensions Library";
+    longDescription = ''
+      This module provides support for inkscape extensions, it includes support for opening svg files and processing them.
+
+      Standalone, it is especially useful for running tests for Inkscape extensions.
+    '';
+  };
+}