anchor.diff:  , harfbuzz_lib
   , jbig2dec
   , libjpeg
  +, libx11
  +, libxext
   , mujs
   , openjpeg
   , openssl_1-0-2
  -, xorg
  +, xproto
   , zlib
   }:
   
  
positive.code:     mujs
      openjpeg
      openssl_1-0-2
      xorg.libX11
      xorg.libXext
      xorg.xproto
      zlib
    ];
  
  
negative.code:     EOF
    '';
  
    meta = with lib; {
      homepage = http://mupdf.com/;
      description = "Lightweight PDF viewer and toolkit written in portable C";
      license = licenses.gpl3Plus;
  