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/ocsigen-deriving/default.nix

@@ -0,0 +1,46 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, ocaml
+, findlib
+, ocamlbuild
+, oasis
+, camlp4
+, num
+}:
+
+if lib.versionOlder ocaml.version "4.03"
+then throw "ocsigen-deriving is not available of OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+  pname = "ocaml${ocaml.version}-ocsigen-deriving";
+  version = "0.8.2";
+
+  src = fetchFromGitHub {
+    owner = "ocsigen";
+    repo = "deriving";
+    rev = version;
+    sha256 = "sha256:09rp9mrr551na0nmclpxddlrkb6l2d7763xv14xfx467kff3z0wf";
+  };
+
+  createFindlibDestdir = true;
+
+  nativeBuildInputs = [ ocaml findlib ocamlbuild oasis camlp4 ];
+  buildInputs = [ oasis camlp4 ocamlbuild num ];
+
+  strictDeps = true;
+
+  meta = {
+    homepage = "https://github.com/ocsigen/deriving";
+    description = "Extension to OCaml for deriving functions from type declarations";
+    license = lib.licenses.mit;
+    inherit (ocaml.meta) platforms;
+    maintainers = with lib.maintainers; [
+      gal_bolle
+      vbgl
+    ];
+  };
+
+
+}