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/tools/ocaml/oasis/default.nix

@@ -0,0 +1,49 @@
+{ lib, stdenv, fetchurl, ocaml, findlib, ocamlbuild, ocamlmod, ocamlify }:
+
+stdenv.mkDerivation {
+  version = "0.4.10";
+  pname = "ocaml-oasis";
+
+  # You must manually update the url, not just the version. OCamlforge keys off
+  # the number after download.php, not the filename.
+  src = fetchurl {
+    url = "https://forge.ocamlcore.org/frs/download.php/1694/oasis-0.4.10.tar.gz";
+    sha256 = "13ah03pbcvrjv5lmx971hvkm9rvbvimska5wmjfvgvd20ca0gn8w";
+  };
+
+  createFindlibDestdir = true;
+
+  strictDeps = true;
+
+  nativeBuildInputs =
+    [
+      ocaml findlib ocamlbuild ocamlmod ocamlify
+    ];
+
+  buildInputs = [ ocamlbuild ];
+
+  configurePhase = ''
+    runHook preConfigure
+    ocaml setup.ml -configure --prefix $out
+    runHook postConfigure
+  '';
+  buildPhase = ''
+    runHook preBuild
+    ocaml setup.ml -build
+    runHook postBuild
+  '';
+  installPhase = ''
+    runHook preInstall
+    ocaml setup.ml -install
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Configure, build and install system for OCaml projects";
+    homepage = "http://oasis.forge.ocamlcore.org/";
+    license = licenses.lgpl21;
+    maintainers = with maintainers; [ vbgl maggesi ];
+    mainProgram = "oasis";
+    platforms = ocaml.meta.platforms or [];
+  };
+}