anchor.diff:    };
   
     buildInputs = [
  -    pkgs.SDL
  -    pkgs.SDL_image
  -    pkgs.SDL_mixer
  -    pkgs.SDL_ttf
  -    pkgs.libpng
  -    pkgs.libjpeg
  -    pkgs.smpeg
  -    pkgs.portmidi
  -    pkgs.xorg.libX11
  +    libjpeg
  +    libpng
  +    libx11
  +    portmidi
  +    sdl
  +    sdl-image
  +    sdl-mixer
  +    sdl-ttf
  +    smpeg
     ];
   
     patches = [
  
positive.code: , isPy3
  , lib
  
  , pkgs
  , pythonPackages
  }:
  
  let
  
negative.code: 
    preConfigure = ''
      for i in \
        ${sdl-image} \
        ${sdl-mixer} \
        ${sdp-ttf} \
        ${libpng} \
        ${libjpeg} \
        ${portmidi} \
        ${libx11}; do
        sed -i config_unix.py \
          -e "/origincdirs =/a'$i/include',"
        sed -i config_unix.py \
  