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/curio/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+, pytestCheckHook
+, sphinx
+, stdenv
+}:
+
+buildPythonPackage rec {
+  pname = "curio";
+  version = "1.5";
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-rwghLlkLt9qOTMOcQgEnEUlNwg1iLxYhVbopbMLjvBA=";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+    sphinx
+  ];
+
+  __darwinAllowLocalNetworking = true;
+
+  disabledTests = [
+     "test_aside_basic" # times out
+     "test_write_timeout" # flaky, does not always time out
+     "test_aside_cancel" # fails because modifies PYTHONPATH and cant find pytest
+     "test_ssl_outgoing" # touches network
+   ] ++ lib.optionals stdenv.isDarwin [
+     "test_unix_echo" # socket bind error on hydra when built with other packages
+     "test_unix_ssl_server" # socket bind error on hydra when built with other packages
+   ];
+
+  pythonImportsCheck = [ "curio" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/dabeaz/curio";
+    description = "Library for performing concurrent I/O with coroutines in Python";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.marsam ];
+  };
+}