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/ropgadget/default.nix

@@ -0,0 +1,39 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, capstone
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "ropgadget";
+  version = "6.7";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "JonathanSalwan";
+    repo = "ROPgadget";
+    rev = "v${version}";
+    hash = "sha256-zOTbncsOvmLQMZGpcRLviSZP/d1cQTQHXCLUKyEgVBk=";
+  };
+
+  propagatedBuildInputs = [
+    capstone
+  ];
+
+  # Test suite is working with binaries
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "ropgadget"
+  ];
+
+  meta = with lib; {
+    description = "Tool to search for gadgets in binaries to facilitate ROP exploitation";
+    homepage = "http://shell-storm.org/project/ROPgadget/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ bennofs ];
+  };
+}