From 6ddbe68bd61ff3d101e3fd50a1284e35a364936c Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 17 Mar 2023 06:26:33 +0100
Subject: [PATCH] ocamlPackages.cooltt: use Dune 3

---
 pkgs/development/ocaml-modules/cooltt/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/ocaml-modules/cooltt/default.nix b/pkgs/development/ocaml-modules/cooltt/default.nix
index 180a09e4d4a1..837a06a2fdee 100644
--- a/pkgs/development/ocaml-modules/cooltt/default.nix
+++ b/pkgs/development/ocaml-modules/cooltt/default.nix
@@ -6,6 +6,7 @@
 , cmdliner
 , containers
 , ezjsonm
+, findlib
 , menhir
 , menhirLib
 , ppx_deriving
@@ -28,7 +29,9 @@ let
       sha256 = "sha256:15v1cggm7awp11iwl3lzpaar91jzivhdxggp5mr48gd28kfipzk2";
     };
 
-    propagatedBuildInputs = [ ezjsonm ];
+    duneVersion = "3";
+
+    propagatedBuildInputs = [ ezjsonm findlib ];
 
     meta = {
       description = "Extensible Library Management and Path Resolution";
@@ -63,6 +66,7 @@ buildDunePackage {
   version = "unstable-2022-04-28";
 
   minimalOCamlVersion = "4.13";
+  duneVersion = "3";
 
   src = fetchFromGitHub {
     owner = "RedPRL";