From a268072f4ec055d0e96cd05f4642e0871b5b15c5 Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Tue, 18 Jul 2023 08:53:24 +0800
Subject: [PATCH] msgpack-cxx: use finalAttrs pattern

---
 pkgs/development/libraries/msgpack-cxx/default.nix | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/libraries/msgpack-cxx/default.nix b/pkgs/development/libraries/msgpack-cxx/default.nix
index 50f7b1ed559..198593df501 100644
--- a/pkgs/development/libraries/msgpack-cxx/default.nix
+++ b/pkgs/development/libraries/msgpack-cxx/default.nix
@@ -6,14 +6,14 @@
 , zlib
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "msgpack-cxx";
   version = "6.1.0";
 
   src = fetchFromGitHub {
     owner = "msgpack";
     repo = "msgpack-c";
-    rev = "refs/tags/cpp-${version}";
+    rev = "refs/tags/cpp-${finalAttrs.version}";
     hash = "sha256-VqzFmm3MmMhWyooOsz1d9gwwbn/fnnxpkCFwqKR6los=";
   };
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [
     "-DMSGPACK_BUILD_DOCS=OFF" # docs are not installed even if built
-  ] ++ lib.optional doCheck "-DMSGPACK_BUILD_TESTS=ON";
+  ] ++ lib.optional finalAttrs.doCheck "-DMSGPACK_BUILD_TESTS=ON";
 
   checkInputs = [
     zlib
@@ -40,8 +40,8 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "MessagePack implementation for C++";
     homepage = "https://github.com/msgpack/msgpack-c";
-    changelog = "https://github.com/msgpack/msgpack-c/blob/${src.rev}/CHANGELOG.md";
+    changelog = "https://github.com/msgpack/msgpack-c/blob/${finalAttrs.src.rev}/CHANGELOG.md";
     license = licenses.boost;
     maintainers = with maintainers; [ nickcao ];
   };
-}
+})