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/gprof2dot/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, fetchFromGitHub
+, buildPythonApplication
+, python
+, graphviz
+}:
+
+buildPythonApplication rec {
+  pname = "gprof2dot";
+  version = "2021.02.21";
+
+  src = fetchFromGitHub {
+    owner = "jrfonseca";
+    repo = "gprof2dot";
+    rev = version;
+    sha256 = "1jjhsjf5fdi1fkn7mvhnzkh6cynl8gcjrygd3cya5mmda3akhzic";
+  };
+
+  makeWrapperArgs = [
+    "--prefix PATH : ${lib.makeBinPath [ graphviz ]}"
+  ];
+
+  # Needed so dot is on path of the test script
+  checkInputs = [ graphviz ];
+
+  checkPhase = ''
+    runHook preCheck
+
+    # if options not specified, will use unwrapped gprof2dot from original source
+    ${python.interpreter} tests/test.py --python bash --gprof2dot $out/bin/gprof2dot
+
+    runHook postCheck
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/jrfonseca/gprof2dot";
+    description = "Python script to convert the output from many profilers into a dot graph";
+    license = licenses.lgpl3Plus;
+    maintainers = [ maintainers.pmiddend ];
+  };
+}