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/beancount_docverif/default.nix

@@ -0,0 +1,51 @@
+{ lib, buildPythonPackage, fetchPypi, isPy3k
+, setuptools-scm
+, beancount
+, pytest, sh
+}:
+
+buildPythonPackage rec {
+  version = "1.0.1";
+  pname = "beancount_docverif";
+
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-CFBv1FZP5JO+1MPnD86ttrO42zZlvE157zqig7s4HOg=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    beancount
+  ];
+
+  checkInputs = [
+    pytest
+    sh
+  ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/siriobalmelli/beancount_docverif";
+    description = "Document verification plugin for Beancount";
+    longDescription = ''
+        Docverif is the "Document Verification" plugin for beancount, fulfilling the following functions:
+
+        - Require that every transaction touching an account have an accompanying document on disk.
+        - Explictly declare the name of a document accompanying a transaction.
+        - Explicitly declare that a transaction is expected not to have an accompanying document.
+        - Look for an "implicit" PDF document matching transaction data.
+        - Associate (and require) a document with any type of entry, including open entries themselves.
+        - Guarantee integrity: verify that every document declared does in fact exist on disk.
+    '';
+    license = licenses.mit;
+    maintainers = with maintainers; [ siriobalmelli ];
+  };
+}