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/ocamlnat/default.nix

@@ -0,0 +1,47 @@
+{stdenv, lib, fetchurl, ocaml, findlib, ounit}:
+
+# https://github.com/bmeurer/ocamlnat/issues/3
+assert lib.versionOlder ocaml.version "4";
+
+stdenv.mkDerivation rec {
+  pname = "ocamlnat";
+  version = "0.1.1";
+
+  src = fetchurl {
+    url = "http://benediktmeurer.de/files/source/${pname}-${version}.tar.bz2";
+    sha256 = "0dyvy0j6f47laxhnadvm71z1py9hz9zd49hamf6bij99cggb2ij1";
+  };
+
+  nativeBuildInputs = [ocaml findlib ];
+  buildInputs = [ ounit];
+
+  strictDeps = true;
+
+  prefixKey = "--prefix ";
+
+  doCheck = true;
+
+  checkTarget = "test";
+
+  createFindlibDestdir = true;
+
+  meta = {
+    description = "OCaml native toplevel";
+    homepage = "http://benediktmeurer.de/ocamlnat/";
+    license = lib.licenses.qpl;
+    longDescription = ''
+      The ocamlnat project provides a new native code OCaml toplevel
+      ocamlnat, which is mostly compatible to the byte code toplevel ocaml,
+      but up to 100 times faster. It is based on the optimizing native code
+      compiler, the native runtime and an earlier prototype by Alain
+      Frisch. It is build upon Just-In-Time techniques and currently
+      supports Unix-like systems (i.e. Linux, BSD or macOS) running on
+      x86 or x86-64 processors. Support for additional architectures and
+      operating systems is planned, but not yet available.
+    '';
+    inherit (ocaml.meta) platforms;
+    maintainers = [
+      lib.maintainers.maggesi
+    ];
+  };
+}