ocamlPackages.gettext: use Dune 2

pkgs/development/ocaml-modules/ocaml-gettext/default.nix

@@ -6,6 +6,8 @@ buildDunePackage rec {
 
   minimumOCamlVersion = "4.03";
 
+  useDune2 = true;
+
   src = fetchurl {
     url = "https://github.com/gildor478/ocaml-gettext/releases/download/v${version}/gettext-v${version}.tbz";
     sha256 = "19ynsldb21r539fiwz1f43apsdnx7hj2a2d9qr9wg2hva9y2qrwb";

pkgs/development/ocaml-modules/ocaml-gettext/stub.nix

@@ -1,14 +1,16 @@
-{ lib, buildDunePackage, ocaml_gettext, ounit }:
+{ buildDunePackage, ocaml_gettext, dune-configurator, ounit }:
 
 buildDunePackage rec {
 
   pname = "gettext-stub";
 
-  inherit (ocaml_gettext) src version meta;
+  inherit (ocaml_gettext) src version useDune2 meta;
+
+  buildInputs = [ dune-configurator ];
 
   propagatedBuildInputs = [ ocaml_gettext ];
 
   doCheck = true;
 
-  checkInputs = lib.optional doCheck ounit;
+  checkInputs = [ ounit ];
 }