From 86d06ee9683bff1821a58a53a70fb7bceff15c51 Mon Sep 17 00:00:00 2001
From: Mario Rodas <marsam@users.noreply.github.com>
Date: Wed, 18 Dec 2019 04:23:00 -0500
Subject: [PATCH] ocamlPackages.utop: use buildDunePackage

---
 pkgs/development/tools/ocaml/utop/default.nix | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/tools/ocaml/utop/default.nix b/pkgs/development/tools/ocaml/utop/default.nix
index f154b94ae33..c0aa1d16374 100644
--- a/pkgs/development/tools/ocaml/utop/default.nix
+++ b/pkgs/development/tools/ocaml/utop/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, ocaml, findlib, dune
-, lambdaTerm, cppo, makeWrapper
+, lambdaTerm, cppo, makeWrapper, buildDunePackage
 }:
 
 if !stdenv.lib.versionAtLeast ocaml.version "4.03"
 then throw "utop is not available for OCaml ${ocaml.version}"
 else
 
-stdenv.mkDerivation rec {
+buildDunePackage rec {
   pname = "utop";
   version = "2.4.2";
 
@@ -16,12 +16,10 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ makeWrapper ];
-  buildInputs = [ ocaml findlib cppo dune ];
+  buildInputs = [ cppo ];
 
   propagatedBuildInputs = [ lambdaTerm ];
 
-  inherit (dune) installPhase;
-
   postFixup =
    let
      path = "etc/utop/env";