ocamlPackages.js_of_ocaml*: 3.3.0 -> 3.4.0

Ensures compatibility with OCaml 4.08

pkgs/development/tools/ocaml/js_of_ocaml/compiler.nix

@@ -1,35 +1,26 @@
-{ stdenv, fetchFromGitHub, ocaml, findlib, dune
+{ lib, fetchFromGitHub, buildDunePackage
 , cmdliner, cppo, yojson
 }:
 
-if !stdenv.lib.versionAtLeast ocaml.version "4.02"
-then throw "js_of_ocaml-compiler is not available for OCaml ${ocaml.version}"
-else
-
-stdenv.mkDerivation rec {
+buildDunePackage rec {
 	pname = "js_of_ocaml-compiler";
-	version = "3.3.0";
+	version = "3.4.0";
 
 	src = fetchFromGitHub {
 		owner = "ocsigen";
 		repo = "js_of_ocaml";
 		rev = version;
-		sha256 = "0bg8x2s3f24c8ia2g293ikd5yg0yjw3hkdgdql59c8k2amqin8f8";
+		sha256 = "0c537say0f3197zn8d83nrihabrxyn28xc6d7c9c3l0vvrv6qvfj";
 	};
 
-	buildInputs = [ ocaml findlib dune cmdliner cppo ];
+	buildInputs = [ cmdliner cppo ];
 
 	propagatedBuildInputs = [ yojson ];
 
-	buildPhase = "dune build -p js_of_ocaml-compiler";
-
-	inherit (dune) installPhase;
-
 	meta = {
 		description = "Compiler from OCaml bytecode to Javascript";
-		license = stdenv.lib.licenses.gpl2;
-		maintainers = [ stdenv.lib.maintainers.vbgl ];
+		license = lib.licenses.gpl2;
+		maintainers = [ lib.maintainers.vbgl ];
 		inherit (src.meta) homepage;
-		inherit (ocaml.meta) platforms;
 	};
 }