From 10652db9068d282b7df4a8f49170a1b3f5af642b Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Sat, 27 Feb 2021 13:33:39 +0100
Subject: [PATCH] ocamlPackages.mmap: use Dune 2

---
 pkgs/development/ocaml-modules/mmap/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/ocaml-modules/mmap/default.nix b/pkgs/development/ocaml-modules/mmap/default.nix
index 8ae1f4a9d47c..b13639150b0d 100644
--- a/pkgs/development/ocaml-modules/mmap/default.nix
+++ b/pkgs/development/ocaml-modules/mmap/default.nix
@@ -4,6 +4,8 @@ buildDunePackage rec {
   pname = "mmap";
   version = "1.1.0";
 
+  useDune2 = true;
+
   src = fetchurl {
     url = "https://github.com/mirage/mmap/releases/download/v${version}/mmap-v${version}.tbz";
     sha256 = "0l6waidal2n8mkdn74avbslvc10sf49f5d889n838z03pra5chsc";