From da8413266703b3b3df1a9ba3014b4d9b907f3836 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Sun, 2 Apr 2023 15:17:18 +0200
Subject: [PATCH] =?UTF-8?q?ocamlPackages.yuujinchou:=202.0.0=20=E2=86=92?=
 =?UTF-8?q?=204.0.0?=
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---
 .../ocaml-modules/yuujinchou/default.nix      | 25 ++++++++++++++++---
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/ocaml-modules/yuujinchou/default.nix b/pkgs/development/ocaml-modules/yuujinchou/default.nix
index 5a78809d909..5f0c0965b27 100644
--- a/pkgs/development/ocaml-modules/yuujinchou/default.nix
+++ b/pkgs/development/ocaml-modules/yuujinchou/default.nix
@@ -1,24 +1,41 @@
-{ lib, fetchFromGitHub, buildDunePackage, qcheck-alcotest }:
+{ lib, ocaml, fetchFromGitHub, buildDunePackage
+, algaeff, bwd
+, qcheck-alcotest
+}:
+
+let params = if lib.versionAtLeast ocaml.version "5.0" then {
+    version = "4.0.0";
+    hash = "sha256-yNLN5bBe4aft9Rl5VHmlOYTlnCdR2NgDWsc3uJHaZy4=";
+    propagatedBuildInputs = [ algaeff bwd ];
+  } else {
+    version = "2.0.0";
+    hash = "sha256:1nhz44cyipy922anzml856532m73nn0g7iwkg79yzhq6yb87109w";
+  }
+; in
 
 buildDunePackage rec {
   pname = "yuujinchou";
-  version = "2.0.0";
+  inherit (params) version;
 
   minimalOCamlVersion = "4.12";
+  duneVersion = "3";
 
   src = fetchFromGitHub {
     owner = "RedPRL";
     repo = pname;
     rev = version;
-    sha256 = "sha256:1nhz44cyipy922anzml856532m73nn0g7iwkg79yzhq6yb87109w";
+    inherit (params) hash;
   };
 
+  propagatedBuildInputs = params.propagatedBuildInputs or [];
+
+
   doCheck = true;
   checkInputs = [ qcheck-alcotest ];
 
   meta = {
     description = "Name pattern combinators";
-    inherit (src.meta) homepage;
+    homepage = "https://github.com/RedPRL/yuujinchou";
     license = lib.licenses.asl20;
     maintainers = [ lib.maintainers.vbgl ];
   };