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/pygit2/default.nix

@@ -0,0 +1,79 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, cacert
+, cached-property
+, cffi
+, fetchPypi
+, isPyPy
+, libgit2
+, pycparser
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pygit2";
+  version = "1.9.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-IIlEM98RRkgarK434rDzu7/eoCbbL1UGEXC9mCPkCxk=";
+  };
+
+  preConfigure = lib.optionalString stdenv.isDarwin ''
+    export DYLD_LIBRARY_PATH="${libgit2}/lib"
+  '';
+
+  buildInputs = [
+    libgit2
+  ];
+
+  propagatedBuildInputs = [
+    cached-property
+    pycparser
+  ] ++ lib.optional (!isPyPy) [
+    cffi
+  ];
+
+  propagatedNativeBuildInputs = lib.optional (!isPyPy) [
+    cffi
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  disabledTestPaths = [
+    # Disable tests that require networking
+    "test/test_repository.py"
+    "test/test_credentials.py"
+    "test/test_submodule.py"
+  ];
+
+  # Tests require certificates
+  # https://github.com/NixOS/nixpkgs/pull/72544#issuecomment-582674047
+  SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+
+  # setup.py check is broken
+  # https://github.com/libgit2/pygit2/issues/868
+  dontUseSetuptoolsCheck = true;
+
+  # TODO: Test collection is failing
+  # https://github.com/NixOS/nixpkgs/pull/72544#issuecomment-582681068
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "pygit2"
+  ];
+
+  meta = with lib; {
+    description = "A set of Python bindings to the libgit2 shared library";
+    homepage = "https://github.com/libgit2/pygit2";
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ ];
+  };
+}