anchor.diff:  , legacyGUI ? true, wxGTK ? null
   # For now both qt5 and wxwidgets gui's are enabled, if wxwidgets is disabled the
   # build system doesn't install desktop entries, icons, etc...
  +, libiconv
   }:
   
   let
  
positive.code: 
    buildInputs = [
      boost expat file flac libebml libmatroska libogg libvorbis xdg_utils zlib
    ] ++ optional withGUI qt5
      ++ optional legacyGUI wxGTK;
  
    enableParallelBuilding = true;
  
negative.code:     homepage = http://www.bunkus.org/videotools/mkvtoolnix/;
      license = licenses.gpl2;
      maintainers = with maintainers; [ codyopel fuuzetsu ];
      platforms = platforms.all;
    };
  }
  