anchor.diff:    hardeningDisable = [ "format" ];
   
     buildInputs = [ SDL mesa ];
  +
  +  configureFlags = lib.optional stdenv.isDarwin "--disable-sdltest";
   
     desktopItem = makeDesktopItem {
       name = "dosbox";
  
positive.code:         url = "http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/games-emulation/dosbox/files/dosbox-0.74-gcc46.patch?revision=1.1";
          sha256 = "03iv1ph7fccfw327ngnhvzwyiix7fsbdb5mmpxivzkidhlrssxq9";
        })
      ];
  
    patchFlags = "-p0";
  
negative.code: { stdenv, lib, fetchurl, SDL, makeDesktopItem, mesa }:
  
  stdenv.mkDerivation rec {
    name = "dosbox-0.74";
  
    src = fetchurl {
  