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/testing-postgresql/default.nix

@@ -0,0 +1,65 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pg8000
+, postgresql
+, psycopg2
+, pytestCheckHook
+, pythonOlder
+, sqlalchemy
+, testing-common-database
+}:
+
+buildPythonPackage rec {
+  pname = "testing-postgresql";
+  # Version 1.3.0 isn't working so let's use the latest commit from GitHub
+  version = "unstable-2017-10-31";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "tk0miya";
+    repo = "testing.postgresql";
+    rev = "c81ded434d00ec8424de0f9e1f4063c778c6aaa8";
+    sha256 = "sha256-A4tahAaa98X66ZYa3QxIQDZkwAwVB6ZDRObEhkbUWKs=";
+  };
+
+  propagatedBuildInputs = [
+    testing-common-database
+    pg8000
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    psycopg2
+    sqlalchemy
+  ];
+
+  # Add PostgreSQL to search path
+  prePatch = ''
+    substituteInPlace src/testing/postgresql.py \
+      --replace "/usr/local/pgsql" "${postgresql}"
+  '';
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "pg8000 >= 1.10" "pg8000"
+  '';
+
+  pythonImportsCheck = [
+    "testing.postgresql"
+  ];
+
+  # Fix tests for Darwin build. See:
+  # https://github.com/NixOS/nixpkgs/pull/74716#issuecomment-598546916
+  __darwinAllowLocalNetworking = true;
+
+  meta = with lib; {
+    description = "Use temporary postgresql instance in testing";
+    homepage = "https://github.com/tk0miya/testing.postgresql";
+    license = licenses.asl20;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ jluttine ];
+  };
+}