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/callipyge/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, buildDunePackage
+, fetchurl
+, ocaml
+
+, alcotest
+, eqaf
+, fmt
+}:
+
+buildDunePackage rec {
+  pname = "callipyge";
+  version = "0.2";
+
+  src = fetchurl {
+    url = "https://github.com/oklm-wsh/Callipyge/releases/download/v${version}/${pname}-${version}.tbz";
+    sha256 = "sha256-T/94a88xvK51TggjXecdKc9kyTE9aIyueIt5T24sZB0=";
+  };
+
+  useDune2 = true;
+
+  minimumOCamlVersion = "4.03";
+
+  propagatedBuildInputs = [ fmt eqaf ];
+
+  # alcotest isn't available for OCaml < 4.05 due to fmt
+  doCheck = lib.versionAtLeast ocaml.version "4.05";
+  checkInputs = [ alcotest ];
+
+  meta = {
+    homepage = "https://github.com/oklm-wsh/Callipyge";
+    description = "Curve25519 in OCaml";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ fufexan ];
+  };
+}