From a29c4b0bf543f64a87688732c66c24f49412ed8c Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 22 Mar 2023 14:10:44 +0100
Subject: [PATCH] ocamlPackages.bls12-381: use Dune 3

---
 .../development/ocaml-modules/bls12-381-signature/default.nix | 2 ++
 pkgs/development/ocaml-modules/bls12-381/default.nix          | 1 +
 pkgs/development/ocaml-modules/bls12-381/gen.nix              | 2 +-
 pkgs/development/ocaml-modules/bls12-381/legacy.nix           | 4 +++-
 4 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/ocaml-modules/bls12-381-signature/default.nix b/pkgs/development/ocaml-modules/bls12-381-signature/default.nix
index db0a383f925e..e7ca964750e0 100644
--- a/pkgs/development/ocaml-modules/bls12-381-signature/default.nix
+++ b/pkgs/development/ocaml-modules/bls12-381-signature/default.nix
@@ -16,6 +16,8 @@ buildDunePackage rec {
     sha256 = "sha256-KaUpAT+BWxmUP5obi4loR9vVUeQmz3p3zG3CBolUuL4=";
   };
 
+  duneVersion = "3";
+
   minimalOCamlVersion = "4.08";
 
   propagatedBuildInputs = [ bls12-381 ];
diff --git a/pkgs/development/ocaml-modules/bls12-381/default.nix b/pkgs/development/ocaml-modules/bls12-381/default.nix
index 6c1ff541c5f9..8330ce3e2bc3 100644
--- a/pkgs/development/ocaml-modules/bls12-381/default.nix
+++ b/pkgs/development/ocaml-modules/bls12-381/default.nix
@@ -14,6 +14,7 @@ buildDunePackage rec {
   };
 
   minimalOCamlVersion = "4.08";
+  duneVersion = "3";
 
   propagatedBuildInputs = [
     ff-sig
diff --git a/pkgs/development/ocaml-modules/bls12-381/gen.nix b/pkgs/development/ocaml-modules/bls12-381/gen.nix
index 7949fe20438a..2eaf616a77b1 100644
--- a/pkgs/development/ocaml-modules/bls12-381/gen.nix
+++ b/pkgs/development/ocaml-modules/bls12-381/gen.nix
@@ -11,7 +11,7 @@ buildDunePackage rec {
     sha256 = "qocIfQdv9rniOUykRulu2zWsqkzT0OrsGczgVKALRuk=";
   };
 
-  useDune2 = true;
+  duneVersion = "3";
 
   minimalOCamlVersion = "4.08";
 
diff --git a/pkgs/development/ocaml-modules/bls12-381/legacy.nix b/pkgs/development/ocaml-modules/bls12-381/legacy.nix
index c72157c677e7..596001da06ae 100644
--- a/pkgs/development/ocaml-modules/bls12-381/legacy.nix
+++ b/pkgs/development/ocaml-modules/bls12-381/legacy.nix
@@ -13,7 +13,9 @@
 buildDunePackage rec {
   pname = "bls12-381-legacy";
 
-  inherit (bls12-381-gen) version src useDune2 doCheck;
+  inherit (bls12-381-gen) version src doCheck;
+
+  duneVersion = "3";
 
   minimalOCamlVersion = "4.08";