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/flent/default.nix

@@ -0,0 +1,39 @@
+{ lib, buildPythonApplication, fetchPypi, matplotlib, procps, pyqt5, python
+, pythonPackages, qt5, sphinx, xvfb-run }:
+
+buildPythonApplication rec {
+  pname = "flent";
+  version = "2.0.1";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "300a09938dc2b4a0463c9144626f25e0bd736fd47806a9444719fa024d671796";
+  };
+
+  buildInputs = [ sphinx ];
+  nativeBuildInputs = [ qt5.wrapQtAppsHook ];
+  propagatedBuildInputs = [ matplotlib procps pyqt5 ];
+  checkInputs = [ procps pythonPackages.mock pyqt5 xvfb-run ];
+
+  checkPhase = ''
+    cat >test-runner <<EOF
+    #!/bin/sh
+
+    ${python.pythonForBuild.interpreter} nix_run_setup test
+    EOF
+    chmod +x test-runner
+    wrapQtApp test-runner --prefix PYTHONPATH : $PYTHONPATH
+    xvfb-run -s '-screen 0 800x600x24' ./test-runner
+  '';
+
+  preFixup = ''
+    makeWrapperArgs+=("''${qtWrapperArgs[@]}")
+  '';
+
+  meta = with lib; {
+    description = "The FLExible Network Tester";
+    homepage = "https://flent.org";
+    license = licenses.gpl3;
+
+    maintainers = [ maintainers.mmlb ];
+  };
+}