anchor.diff:  , stdenv
   , fetchurl
   , fetchpatch
  -, libX11
  -, wxGTK
  -, libiconv
  +, boost
  +, ffmpeg
  +, ffms
  +, fftw
   , fontconfig
   , freetype
  +, icu
  +, intltool
  +, libGL
   , libGLU
  -, libGL
  +, libX11
   , libass
  -, fftw
  -, ffms
  -, ffmpeg_3
  +, libiconv
   , pkg-config
  +, wxGTK
   , zlib
  -, icu
  -, boost
  -, intltool
   
   , spellcheckSupport ? true
   , hunspell ? null
  
positive.code:       audio, and features many powerful tools for styling them, including a
        built-in real-time video preview.
      '';
      homepage = "http://www.aegisub.org/";
      # The Aegisub sources are itself BSD/ISC,
      # but they are linked against GPL'd softwares
      # - so the resulting program will be GPL
      license = licenses.bsd3;
      maintainers = [ maintainers.AndersonTorres ];
      platforms = [ "i686-linux" "x86_64-linux" ];
    };
  }
  
negative.code: 
    postInstall = "ln -s $out/bin/aegisub-* $out/bin/aegisub";
  
    meta = with lib; {
      homepage = "https://github.com/Aegisub/Aegisub";
      description = "An advanced subtitle editor";
      longDescription = ''
        Aegisub is a free, cross-platform open source tool for creating and
  