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-gammu/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+  #, pytestCheckHook
+, pythonOlder
+, pkg-config
+, gammu
+}:
+
+buildPythonPackage rec {
+  pname = "python-gammu";
+  version = "3.2.4";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.5";
+
+  src = fetchFromGitHub {
+    owner = "gammu";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-lFQBrKWwdvUScwsBva08izZVeVDn1u+ldzixtL9YTpA=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    gammu
+  ];
+
+  # Check with the next release if tests could be run with pytest
+  # checkInputs = [ pytestCheckHook ];
+  # Don't run tests for now
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "gammu"
+  ];
+
+  meta = with lib; {
+    description = "Python bindings for Gammu";
+    homepage = "https://github.com/gammu/python-gammu/";
+    license = with licenses; [ gpl2Plus ];
+    maintainers = with maintainers; [ fab ];
+  };
+}