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/dolog/default.nix

@@ -0,0 +1,30 @@
+{ stdenv, lib, fetchFromGitHub, ocaml, findlib, ocamlbuild }:
+
+stdenv.mkDerivation rec {
+  pname = "ocaml-dolog";
+  version = "3.0";
+
+  src = fetchFromGitHub {
+    owner = "UnixJunkie";
+    repo = "dolog";
+    rev = "v${version}";
+    sha256 = "sha256-6wfqT5sqo4YA8XoHH3QhG6/TyzzXCzqjmnPuBArRoj8=";
+  };
+
+  nativeBuildInputs = [ ocaml findlib ocamlbuild ];
+
+  strictDeps = true;
+
+  createFindlibDestdir = true;
+
+  doCheck = true;
+  checkTarget = "test";
+
+  meta = {
+    homepage = "https://github.com/UnixJunkie/dolog";
+    description = "Minimalistic lazy logger in OCaml";
+    platforms = ocaml.meta.platforms or [ ];
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ vbgl ];
+  };
+}