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/metar/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "metar";
+  version = "1.9.0";
+
+  src = fetchFromGitHub {
+    owner = "python-metar";
+    repo = "python-metar";
+    rev = "v${version}";
+    sha256 = "sha256-pl2NWRfFCYyM2qvBt4Ic3wgbGkYZvAO6pX2Set8zYW8=";
+  };
+
+  patches = [
+    (fetchpatch {
+      # Fix flapping test; https://github.com/python-metar/python-metar/issues/161
+      url = "https://github.com/python-metar/python-metar/commit/716fa76682e6c2936643d1cf62e3d302ef29aedd.patch";
+      hash = "sha256-y82NN+KDryOiH+eG+2ycXCO9lqQLsah4+YpGn6lM2As=";
+    })
+  ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  disabledTests = [
+    # https://github.com/python-metar/python-metar/issues/165
+    "test_033_parseTime_auto_month"
+  ];
+
+  pythonImportsCheck = [ "metar" ];
+
+  meta = with lib; {
+    description = "Python parser for coded METAR weather reports";
+    homepage = "https://github.com/python-metar/python-metar";
+    license = with licenses; [ bsd1 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}