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/ocaml-modules/ringo/default.nix

@@ -0,0 +1,28 @@
+{ lib, fetchFromGitLab, buildDunePackage }:
+
+buildDunePackage rec {
+  pname = "ringo";
+  version = "0.5";
+
+  src = fetchFromGitLab {
+    owner = "nomadic-labs";
+    repo = "ringo";
+    rev = "v${version}";
+    sha256 = "1zwha0ycv3rm3qnw7nkg2m08ibx39yxnx5fan4lnn82b0pdasjag";
+  };
+
+  minimalOCamlVersion = "4.05";
+
+  useDune2 = true;
+
+  doCheck = true;
+
+  # If we just run the test as is it will try to test ringo-lwt
+  checkPhase = "dune build @test/runtest";
+
+  meta = {
+    description = "Caches (bounded-size key-value stores) and other bounded-size stores";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.ulrikstrid ];
+  };
+}