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/primecountpy/default.nix

@@ -0,0 +1,33 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, primecount
+, cython
+, cysignals
+}:
+
+buildPythonPackage rec {
+  pname = "primecountpy";
+  version = "0.1.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "78fe7cc32115f0669a45d7c90faaf39f7ce3939e39e2e7e5f14c17fe4bff0676";
+  };
+
+  buildInputs = [ primecount ];
+
+  propagatedBuildInputs = [ cython cysignals ];
+
+  # depends on pytest-cython for "pytest --doctest-cython"
+  doCheck = false;
+
+  pythonImportsCheck = [ "primecountpy" ];
+
+  meta = with lib; {
+    description = "Cython interface for C++ primecount library";
+    homepage = "https://github.com/dimpase/primecountpy/";
+    maintainers = teams.sage.members;
+    license = licenses.gpl3Only;
+  };
+}