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/conda/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pycosat
+, requests
+, ruamel-yaml
+, isPy3k
+, enum34
+}:
+
+# Note: this installs conda as a library. The application cannot be used.
+# This is likely therefore NOT what you're looking for.
+
+buildPythonPackage rec {
+  pname = "conda";
+  version = "4.3.16";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a91ef821343dea3ba9670f3d10b36c1ace4f4c36d70c175d8fc8886e94285953";
+  };
+
+  propagatedBuildInputs = [ pycosat requests ruamel-yaml ] ++ lib.optional (!isPy3k) enum34;
+
+  # No tests
+  doCheck = false;
+
+  meta = {
+    description = "OS-agnostic, system-level binary package manager";
+    homepage = "https://github.com/conda/conda";
+    license = lib.licenses.bsd3;
+  };
+
+}