From 8706ed24e579c19bcf8281b60d1ac2f638b73bf1 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Thu, 20 Feb 2020 06:13:47 +0100
Subject: [PATCH] ocamlPackages.dum: cleaning
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Propagate the `easy-format` dependency.

Fix build with OCaml ≥ 4.09.
---
 pkgs/development/ocaml-modules/dum/default.nix | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/pkgs/development/ocaml-modules/dum/default.nix b/pkgs/development/ocaml-modules/dum/default.nix
index 37c00f6b31e9..5e5199c26905 100644
--- a/pkgs/development/ocaml-modules/dum/default.nix
+++ b/pkgs/development/ocaml-modules/dum/default.nix
@@ -1,25 +1,24 @@
-{ lib, fetchFromGitHub, buildOcaml, ocaml
+{ stdenv, fetchFromGitHub, ocaml, findlib
 , easy-format
 }:
 
-buildOcaml rec {
-  name = "dum";
+stdenv.mkDerivation rec {
+  name = "ocaml${ocaml.version}-dum-${version}";
   version = "1.0.1";
 
-  minimumOCamlVersion = "4.06";
-
   src = fetchFromGitHub {
     owner = "mjambon";
-    repo = name;
+    repo = "dum";
     rev = "v${version}";
     sha256 = "0yrxl97szjc0s2ghngs346x3y0xszx2chidgzxk93frjjpsr1mlr";
   };
 
-  buildInputs = [ easy-format ];
+  buildInputs = [ ocaml findlib ];
+  propagatedBuildInputs = [ easy-format ];
 
-  doCheck = true;
+  createFindlibDestdir = true;
 
-  meta = with lib; {
+  meta = with stdenv.lib; {
     homepage = https://github.com/mjambon/dum;
     description = "Inspect the runtime representation of arbitrary OCaml values";
     license = licenses.lgpl21Plus;