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/pysmbc/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, samba
+, pkg-config
+}:
+
+buildPythonPackage rec {
+  pname = "pysmbc";
+  version = "1.0.23";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1y0n1n6jkzf4mr5lqfc73l2m0qp56gvxwfjnx2vj8c0hh5i1gnq8";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ samba ];
+
+  # Tests would require a local SMB server
+  doCheck = false;
+  pythonImportsCheck = [ "smbc" ];
+
+  meta = with lib; {
+    description = "libsmbclient binding for Python";
+    homepage = "https://github.com/hamano/pysmbc";
+    license = with licenses; [ gpl2Plus ];
+    maintainers = with maintainers; [ fab ];
+  };
+}