The qBittorrent project aims to provide a Free Software
alternative to µtorrent. Additionally, qBittorrent runs and
provides the same features on all major platforms (Linux,
Mac OS X, Windows, OS/2, FreeBSD).
qBittorrent is based on Qt4 toolkit and libtorrent-rasterbar.
http://www.qbittorrent.org/
See also https://github.com/mxe/mxe/pull/812
Boris Nagaev