From bdf4f3570a47dd722db6922440c0b8cbb81e754c Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Mon, 12 Feb 2024 21:30:42 +0100
Subject: [PATCH] ocamlPackages.lablgtk3: fix build with Clang

---
 pkgs/development/ocaml-modules/lablgtk3/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/ocaml-modules/lablgtk3/default.nix b/pkgs/development/ocaml-modules/lablgtk3/default.nix
index a6aa522f7c84..371372579598 100644
--- a/pkgs/development/ocaml-modules/lablgtk3/default.nix
+++ b/pkgs/development/ocaml-modules/lablgtk3/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchurl, pkg-config, buildDunePackage, dune-configurator
+{ lib, fetchurl, fetchpatch, pkg-config, buildDunePackage, dune-configurator
 , gtk3, cairo2
 , camlp-streams
 }:
@@ -14,6 +14,13 @@ buildDunePackage rec {
     hash = "sha256-bxEVMzfnaH5yHVxAmifNYOy8GnSivLLgSE/9+1yxBI4=";
   };
 
+  # Fix build with clang 16
+  # See: https://github.com/garrigue/lablgtk/pull/175
+  patches = fetchpatch {
+    url = "https://github.com/garrigue/lablgtk/commit/a9b64b9ed8a13855c672cde0a2d9f78687f4214b.patch";
+    hash = "sha256-j/L+yYKLlj410jx2VG77hnn9SVHCcSzmr3wpOMZhX5w=";
+  };
+
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ dune-configurator camlp-streams ];
   propagatedBuildInputs = [ gtk3 cairo2 ];