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/compilers/vyper/default.nix

@@ -0,0 +1,73 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, pythonRelaxDepsHook
+, writeText
+, asttokens
+, pycryptodome
+, recommonmark
+, semantic-version
+, sphinx
+, sphinx_rtd_theme
+, pytest-runner
+, setuptools-scm
+, git
+}:
+
+let
+  sample-contract = writeText "example.vy" ''
+    count: int128
+
+    @external
+    def __init__(foo: address):
+        self.count = 1
+  '';
+
+in
+buildPythonPackage rec {
+  pname = "vyper";
+  version = "0.3.3";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-BAnNj27B1HAb9VVDA69bFGbQjeOpl0g5EB2juajqBAw=";
+  };
+
+  nativeBuildInputs = [
+    # Git is used in setup.py to compute version information during building
+    # ever since https://github.com/vyperlang/vyper/pull/2816
+    git
+
+    pythonRelaxDepsHook
+    pytest-runner
+    setuptools-scm
+  ];
+
+  pythonRelaxDeps = [ "semantic-version" ];
+
+  propagatedBuildInputs = [
+    asttokens
+    pycryptodome
+    semantic-version
+
+    # docs
+    recommonmark
+    sphinx
+    sphinx_rtd_theme
+  ];
+
+  checkPhase = ''
+    $out/bin/vyper "${sample-contract}"
+  '';
+
+  meta = with lib; {
+    description = "Pythonic Smart Contract Language for the EVM";
+    homepage = "https://github.com/vyperlang/vyper";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ siraben ];
+  };
+}