dosbox: Fix on Darwin

This previously pulled in Mesa on Darwin, which has recently been marked broken there due to an upstream bug.
The configure script uses OpenGL framework on Darwin, libGL everywhere else. So don't pull in Mesa on Darwin,
pass it OpenGL instead.

pkgs/applications/emulators/dosbox/default.nix

@@ -9,6 +9,7 @@
 , graphicsmagick
 , libGL
 , libGLU
+, OpenGL
 , libpng
 , makeDesktopItem
 }:
@@ -32,10 +33,13 @@ stdenv.mkDerivation rec {
     SDL
     SDL_net
     SDL_sound
+    libpng
+  ] ++ (if stdenv.hostPlatform.isDarwin then [
+    OpenGL
+  ] else [
     libGL
     libGLU
-    libpng
-  ];
+  ]);
 
   hardeningDisable = [ "format" ];
 

pkgs/top-level/all-packages.nix

@@ -2408,6 +2408,7 @@ with pkgs;
   dlx = callPackage ../applications/emulators/dlx { };
 
   dosbox = callPackage ../applications/emulators/dosbox {
+    inherit (darwin.apple_sdk.frameworks ) OpenGL;
     SDL = if stdenv.isDarwin then SDL else SDL_compat;
   };