anchor.diff:        sha256 = "02f04ss45km32lp68diyfkix1gryx89qy8cc80189ipwnx80pgip";
       };
       description = "Port of SNES9x git to libretro";
  +    license = "Non-commercial";
     }).override {
       buildPhase = "cd libretro && make";
     };
  
positive.code:       sha256 = "0fl9r6jj2x9231md5zc4scra79j5hfn1n2z67scff1375xg1k64h";
      };
      description = "Fast MegaDrive/MegaCD/32X emulator";
  
      extraBuildInputs = [ libpng SDL ];
    }).override {
  
negative.code:       sha256 = "0blfvq28hgv9kkpijd8c9d9sa5g2qr448clwi7wrj8kqfdnrr8m1";
      };
      description = "Port of MAME to libretro";
      license = gpl2Plus;
  
      extraBuildInputs = [ alsaLib mesa portaudio python27 xorg.libX11 ];
    }).override {
  