boost-1.34 is required for python 2.5 only systems which breaks, and that breaks rb_libtorrent.. since there is no threads USE flag in _pre ebuilds. [ebuild R ] dev-libs/boost-1.34_pre20061214 USE="-debug -doc -icc -icu -pyste -tools" 0 kB [ebuild U ] net-libs/rb_libtorrent-0.12 [0.11] USE="-debug" 0 kB !!! ERROR: net-libs/rb_libtorrent-0.12 failed. Call stack: ebuild.sh, line 1631: Called dyn_setup ebuild.sh, line 703: Called qa_call 'pkg_setup' ebuild.sh, line 44: Called pkg_setup rb_libtorrent-0.12.ebuild, line 28: Called built_with_use 'dev-libs/boost' 'threads' eutils.eclass, line 1713: Called die !!! dev-libs/boost-1.34_pre20061214 does not actually support the threads USE flag! there is a bug 178743 open for boost version bump to final version.
thus deluge isn't installable on python 2.5 only systems.
Should be fixed now. Thanks.