From b6eea0848576b197c6761fb9d0b695646fbcc70b Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Thu, 16 Dec 2021 17:55:08 -0500
Subject: openrw: fix darwin build

---
 pkgs/games/openrw/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/games/openrw/default.nix b/pkgs/games/openrw/default.nix
index f1bcab2895f..d86962b9abe 100644
--- a/pkgs/games/openrw/default.nix
+++ b/pkgs/games/openrw/default.nix
@@ -28,8 +28,16 @@ stdenv.mkDerivation {
     fetchSubmodules = true;
   };
 
+  postPatch = lib.optional (stdenv.cc.isClang && (lib.versionAtLeast stdenv.cc.version "9"))''
+    substituteInPlace cmake_configure.cmake \
+      --replace 'target_link_libraries(rw_interface INTERFACE "stdc++fs")' ""
+  '';
+
   nativeBuildInputs = [ cmake ];
 
+  # error: 'path' is unavailable: introduced in macOS 10.15
+  CXXFLAGS = lib.optional (stdenv.hostPlatform.system == "x86_64-darwin") "-D_LIBCPP_DISABLE_AVAILABILITY";
+
   buildInputs = [
     sfml libGLU libGL bullet glm libmad xlibsWrapper openal SDL2 boost ffmpeg
   ] ++ lib.optionals stdenv.isDarwin [ OpenAL Cocoa ];
-- 
cgit 1.4.1