anchor.diff:      makefile = "Makefile";
     };
   
  -  beetle-vb = mkLibRetroCore rec {
  +  beetle-vb = mkLibRetroCore {
       core = "mednafen-vb";
       src = getCoreSrc "beetle-vb";
       description = "Port of Mednafen's VirtualBoy core to libretro";
  
positive.code:     makefile = "Makefile";
    };
  
    beetle-wswan = mkLibRetroCore rec {
      core = "mednafen-wswan";
      src = getCoreSrc "beetle-wswan";
      description = "Port of Mednafen's WonderSwan core to libretro";
  
negative.code:     makefile = "Makefile";
      makeFlags = [ "HAVE_HW=0" ];
      meta.platforms = [ "x86_64-linux" "aarch64-linux" ];
    };
  
    beetle-saturn-hw = mkLibRetroCore {
      core = "mednafen-saturn-hw";
      src = getCoreSrc "beetle-saturn";
      description = "Port of Mednafen's Saturn core to libretro";
  