Hi Katze,
I modified the mentioned page multiple time at the time I compiled Deluge/libtorrent myself, you’ll succeed if you follow the remark. Be aware you’ll need to follow the “Temporary Swap File for Rasperry Pi or low memory systems” part to have a successful make.
However may I point you to another direction to ease your installation? If so I updated this page http://dev.deluge-torrent.org/wiki/Installing/Linux/Debian/Jessie. This will use the PPA repository maintained by the Deluge Team and select a compatible package (Ubuntu trusty <> Debian Jessie). You’ll end with Deluge 1.3.14 and libtorrent 1.0.11, last confirmed working version.
I’ve some command line useful to clean your system if Deluge was compiled too
Feel free to come back if you have any question