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/segments/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, isPy27
+, regex
+, csvw
+, clldutils
+, mock
+, pytestCheckHook
+, pytest-mock
+}:
+
+buildPythonPackage rec {
+  pname = "segments";
+  version = "2.2.0";
+  disabled = isPy27;
+
+  src = fetchFromGitHub {
+    owner = "cldf";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "04yc8q79zk09xj0wnal0vdg5azi9jlarfmf2iyljqyr80p79gwvv";
+  };
+
+  patchPhase = ''
+    substituteInPlace setup.cfg --replace "--cov" ""
+  '';
+
+  propagatedBuildInputs = [
+    regex
+    csvw
+    clldutils
+  ];
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+    pytest-mock
+  ];
+
+  meta = with lib; {
+    description = "Unicode Standard tokenization routines and orthography profile segmentation";
+    homepage = "https://github.com/cldf/segments";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ ];
+  };
+}