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/python-openems/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, cython
+, openems
+, csxcad
+, boost
+, python-csxcad
+, numpy
+, h5py
+}:
+
+buildPythonPackage rec {
+  pname = "python-openems";
+  version = "unstable-2020-02-15";
+
+  src = fetchFromGitHub {
+    owner = "thliebig";
+    repo = "openEMS";
+    rev = "ba793ac84e2f78f254d6d690bb5a4c626326bbfd";
+    sha256 = "1dca6b6ccy771irxzsj075zvpa3dlzv4mjb8xyg9d889dqlgyl45";
+  };
+
+  sourceRoot = "source/python";
+
+  nativeBuildInputs = [
+    cython
+    boost
+  ];
+
+  propagatedBuildInputs = [
+    openems
+    csxcad
+    python-csxcad
+    numpy
+    h5py
+  ];
+
+  setupPyBuildFlags = "-I${openems}/include -L${openems}/lib -R${openems}/lib";
+  pythonImportsCheck = [ "openEMS" ];
+
+  meta = with lib; {
+    description = "Python interface to OpenEMS";
+    homepage = "http://openems.de/index.php/Main_Page.html";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ matthuszagh ];
+    platforms = platforms.linux;
+  };
+}