From 0163de0826dd66203e39e6292d2540fd625edff1 Mon Sep 17 00:00:00 2001
From: Bouke van der Bijl <i@bou.ke>
Date: Thu, 16 Nov 2023 13:06:27 +0100
Subject: [PATCH 1/2] meshoptimizer: unstable-2023-03-22 -> 0.20

---
 pkgs/development/libraries/meshoptimizer/default.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/libraries/meshoptimizer/default.nix b/pkgs/development/libraries/meshoptimizer/default.nix
index cfa273aa1518..b6185ae91747 100644
--- a/pkgs/development/libraries/meshoptimizer/default.nix
+++ b/pkgs/development/libraries/meshoptimizer/default.nix
@@ -7,14 +7,14 @@ let
     rev = "8903f6d69849fd782b72a551a4dd04a264434e20";
     hash = "sha256-o3dCxAAkpMoNkvkM7qD75cPn/obDc/fJ8u7KLPm1G6g=";
   };
-in stdenv.mkDerivation {
+in stdenv.mkDerivation rec {
   pname = "meshoptimizer";
-  version = "unstable-2023-03-22";
+  version = "0.20";
   src = fetchFromGitHub {
     owner = "zeux";
     repo = "meshoptimizer";
-    hash = "sha256-OWeptdnKFvTyfkz0sFCpiTI7323GfVE8vb8bNUBnslA=";
-    rev = "49d9222385daf61a9ce75bb4699472408eb3df3e";
+    rev = "v${version}";
+    hash = "sha256-QCxpM2g8WtYSZHkBzLTJNQ/oHb5j/n9rjaVmZJcCZIA=";
   };
 
   nativeBuildInputs = [ cmake ];

From 49fb7e006cd971af3ac27165ad1e208a0af79206 Mon Sep 17 00:00:00 2001
From: Bouke van der Bijl <i@bou.ke>
Date: Tue, 13 Feb 2024 10:56:32 +0100
Subject: [PATCH 2/2] Add updateScript

---
 pkgs/development/libraries/meshoptimizer/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/meshoptimizer/default.nix b/pkgs/development/libraries/meshoptimizer/default.nix
index b6185ae91747..2c4617d15fc6 100644
--- a/pkgs/development/libraries/meshoptimizer/default.nix
+++ b/pkgs/development/libraries/meshoptimizer/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, cmake }:
+{ lib, stdenv, fetchFromGitHub, cmake, nix-update-script }:
 
 let
   basis_universal = fetchFromGitHub {
@@ -27,6 +27,8 @@ in stdenv.mkDerivation rec {
   ] ++ lib.optional (!stdenv.hostPlatform.isStatic)
     "-DMESHOPT_BUILD_SHARED_LIBS:BOOL=ON";
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Mesh optimization library that makes meshes smaller and faster to render";
     homepage = "https://github.com/zeux/meshoptimizer";