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/django-haystack/default.nix

@@ -0,0 +1,60 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchPypi
+
+# build dependencies
+, setuptools-scm
+
+# dependencies
+, django
+
+# tests
+, geopy
+, nose
+, pysolr
+, python-dateutil
+, requests
+, whoosh
+}:
+
+buildPythonPackage rec {
+  pname = "django-haystack";
+  version = "3.1.1";
+  format = "setuptools";
+  disabled = pythonOlder "3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "6d05756b95d7d5ec1dbd4668eb999ced1504b47f588e2e54be53b1404c516a82";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "geopy==" "geopy>="
+  '';
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    django
+  ];
+
+  checkInputs = [
+    geopy
+    nose
+    pysolr
+    python-dateutil
+    requests
+    whoosh
+  ];
+
+  meta = with lib; {
+    description = "Pluggable search for Django";
+    homepage = "http://haystacksearch.org/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ ];
+  };
+}