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/applications/networking/errbot/default.nix

@@ -0,0 +1,91 @@
+{ lib
+, ansi
+, buildPythonApplication
+, colorlog
+, daemonize
+, deepmerge
+, dulwich
+, fetchFromGitHub
+, flask
+, glibcLocales
+, hypchat
+, irc
+, jinja2
+, markdown
+, mock
+, pyasn1
+, pyasn1-modules
+, pygments
+, pygments-markdown-lexer
+, pyopenssl
+, pytestCheckHook
+, requests
+, slackclient
+, sleekxmpp
+, telegram
+, webtest
+}:
+
+buildPythonApplication rec {
+  pname = "errbot";
+  version = "6.1.7";
+
+  src = fetchFromGitHub {
+    owner = "errbotio";
+    repo = "errbot";
+    rev = version;
+    sha256 = "02h44qd3d91zy657hyqsw3gskgxg31848pw6zpb8dhd1x84z5y77";
+  };
+
+  LC_ALL = "en_US.utf8";
+
+  buildInputs = [ glibcLocales ];
+
+  propagatedBuildInputs = [
+    ansi
+    colorlog
+    daemonize
+    deepmerge
+    dulwich
+    flask
+    hypchat
+    irc
+    jinja2
+    markdown
+    pyasn1
+    pyasn1-modules
+    pygments
+    pygments-markdown-lexer
+    pyopenssl
+    requests
+    slackclient
+    sleekxmpp
+    telegram
+    webtest
+  ];
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+  ];
+
+  # Slack backend test has an import issue
+  pytestFlagsArray = [ "--ignore=tests/backend_tests/slack_test.py" ];
+
+  disabledTests = [
+    "backup"
+    "broken_plugin"
+    "plugin_cycle"
+  ];
+
+  pythonImportsCheck = [ "errbot" ];
+
+  meta = with lib; {
+    description = "Chatbot designed to be simple to extend with plugins written in Python";
+    homepage = "http://errbot.io/";
+    maintainers = with maintainers; [ fpletz globin ];
+    license = licenses.gpl3Plus;
+    platforms = platforms.linux;
+    # flaky on darwin, "RuntimeError: can't start new thread"
+  };
+}