anchor.diff:    };
   
     nativeBuildInputs = [
  -    pkg-config SDL
  +    pkg-config SDL2
     ];
   
     buildInputs = [
  -    SDL SDL_image SDL_mixer SDL_ttf libpng libjpeg
  +    SDL2 SDL2_image SDL2_mixer SDL2_ttf libpng libjpeg
       portmidi libX11 freetype
     ];
   
  
positive.code:     sed \
        -e "s/origincdirs = .*/origincdirs = []/" \
        -e "s/origlibdirs = .*/origlibdirs = []/" \
        -e "/'\/lib\/i386-linux-gnu', '\/lib\/x86_64-linux-gnu']/d" \
        -e "/\/include\/smpeg/d" \
        -i buildconfig/config_unix.py
      ${lib.concatMapStrings (dep: ''
        sed \
  
negative.code: { lib, fetchPypi, buildPythonPackage, python, pkg-config, libX11
  , SDL2, SDL2_image, SDL2_mixer, SDL2_ttf, libpng, libjpeg, portmidi, freetype
  }:
  
  buildPythonPackage rec {
  