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/pgspecial/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+, psycopg2
+, click
+, configobj
+, sqlparse
+}:
+
+buildPythonPackage rec {
+  pname = "pgspecial";
+  version = "1.13.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-1dq5ZpCQgnWRbcLGIu+uIX8ULggWX6NmlJ1By8VlhwE=";
+  };
+
+  propagatedBuildInputs = [
+    click
+    sqlparse
+    psycopg2
+  ];
+
+  checkInputs = [
+    configobj
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # requires a postgresql server
+    "test_slash_dp_pattern_schema"
+  ];
+
+  meta = with lib; {
+    description = "Meta-commands handler for Postgres Database";
+    homepage = "https://pypi.python.org/pypi/pgspecial";
+    license = licenses.bsd3;
+  };
+}