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/sphinxcontrib-bibtex/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, oset
+, pybtex
+, pybtex-docutils
+, sphinx
+}:
+
+buildPythonPackage rec {
+  pname = "sphinxcontrib-bibtex";
+  version = "2.4.2";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-ZbAj7kfzXx8DrE1xyCTmfGJMfsrBuyboNiMnGgH52oY=";
+  };
+
+  propagatedBuildInputs = [
+    oset
+    pybtex
+    pybtex-docutils
+    sphinx
+  ];
+
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "sphinxcontrib.bibtex"
+  ];
+
+  meta = with lib; {
+    description = "A Sphinx extension for BibTeX style citations";
+    homepage = "https://github.com/mcmtroffaes/sphinxcontrib-bibtex";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}