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/claripy/default.nix

@@ -0,0 +1,59 @@
+{ lib
+, buildPythonPackage
+, cachetools
+, decorator
+, fetchFromGitHub
+, future
+, nose
+, pysmt
+, pythonOlder
+, pytestCheckHook
+, six
+, z3
+}:
+
+buildPythonPackage rec {
+  pname = "claripy";
+  version = "9.2.6";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "angr";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-mBpAwKUclwvgOeGD6BvPUKZHdjngfvuHdtKY3nx7jzM=";
+  };
+
+  propagatedBuildInputs = [
+    cachetools
+    decorator
+    future
+    pysmt
+    z3
+  ];
+
+  checkInputs = [
+    nose
+    pytestCheckHook
+    six
+  ];
+
+  postPatch = ''
+    # Use upstream z3 implementation
+    substituteInPlace setup.cfg \
+      --replace "z3-solver >= 4.8.5.0" ""
+  '';
+
+  pythonImportsCheck = [
+    "claripy"
+  ];
+
+  meta = with lib; {
+    description = "Python abstraction layer for constraint solvers";
+    homepage = "https://github.com/angr/claripy";
+    license = with licenses; [ bsd2 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}