anchor.diff:          alsaLib nspr nss libnotify xlibs.pixman yasm mesa
           xlibs.libXScrnSaver xlibs.scrnsaverproto pysqlite
           xlibs.libXext xlibs.xextproto sqlite unzip makeWrapper
  +        hunspell libevent libstartup_notification libvpx
         ];
   
       configureFlags =
  
positive.code:       "--with-system-bz2"
        "--with-system-nspr"
        "--with-system-nss"
        # "--with-system-png" # <-- "--with-system-png won't work because the system's libpng doesn't have APNG support"
        "--enable-system-cairo"
        "--enable-system-sqlite"
        "--disable-crashreporter"
        "--disable-tests"
  
negative.code:       [ pkgconfig gtk perl zip libIDL libjpeg zlib cairo bzip2 python
          dbus dbus_glib pango freetype fontconfig alsaLib nspr nss libnotify
          xlibs.pixman yasm mesa sqlite file unzip pysqlite
          hunspell libevent libstartup_notification libvpx
        ];
  
      patches = [
  