net-p2p/qbittorrent-3.3.16 out now. I never could compile 3.3.15. I had a look at the ChangeLog: * Thu Sep 07 2017 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v3.3.16 - BUGFIX: Better memory footprint when using libtorrent 1.1.x. * Tue Jul 18 2017 - sledgehammer999 <sledgehammer999@qbittorrent.org> - v3.3.14 - BUGFIX: Set interface for outgoing traffic(libtorrent 1.1.x series). Well, after unmasking of net-libs/libtorrent-rasterbar-1.1.4 and removing any qbittorrent-cmake-3.8 patch net-p2p/qbittorrent-3.3.16 emerged without issue. Using: dev-util/cmake-3.9.2 sys-devel/gcc-6.4.0 net-libs/libtorrent-rasterbar-1.1.4 net-p2p/qbittorrent-3.3.16 runs without issue on my Gentoo~unstable system.
Yes, emerge -pv libtorrent-rasterbar qbittorrent [ebuild R #] net-libs/libtorrent-rasterbar-1.1.4:0/9::gentoo USE="dht python ssl -debug -doc -examples -libressl -static-libs {-test}" PYTHON_TARGETS="python2_7 python3_5 python3_6 -python3_4" 0 KiB [ebuild R ] net-p2p/qbittorrent-3.3.16::local-overlay USE="X dbus -debug -webui" 0 KiB builds and works fine (on ~amd64).
Unmasked in git commit 55e5a8444a973212dc8e24ec8489726b18af5df9.