'emerge --update --newuse --deep --with-bdeps=y --backtrack=30 @world' fails with: root@lynx:/usr/src(26)# emerge --update --newuse --deep --with-bdeps=y --backtrack=30 @world Calculating dependencies... done! [ebuild U ] sys-devel/binutils-config-4 [3-r3] [ebuild U ] dev-db/postgresql-docs-9.3.5 [9.3.4] [ebuild U ] dev-util/pkgconfig-0.28-r2 [0.28-r1] [ebuild N ] dev-libs/libedit-20130712.3.1 USE="-static-libs" ABI_X86="(64) -32 (-x32)" [ebuild U ] dev-perl/extutils-depends-0.308.0 [0.306.0] [ebuild U ] dev-perl/AnyEvent-7.80.0 [7.40.0] [ebuild U ] dev-libs/libgcrypt-1.6.1-r2 [1.6.1-r1] [ebuild U ] sys-apps/help2man-1.46.1 [1.45.1] [ebuild U ] media-libs/leptonica-1.71 [1.70] [ebuild U ] dev-lang/python-2.7.8 [2.7.7] [ebuild U ] net-misc/youtube-dl-2014.07.25.1 [2014.07.24] [ebuild U ] dev-lang/python-3.3.5-r1 [3.3.5] [ebuild U ] dev-python/sqlalchemy-0.9.7 [0.9.6] [ebuild U ] app-editors/nano-2.3.6 [2.3.4] [ebuild r U ] sci-libs/hdf5-1.8.13 [1.8.12] [ebuild rR ] sci-libs/hdf5-1.8.12 [ebuild U ] sys-devel/crossdev-20140729 [20140118] [ebuild U ] virtual/libgudev-215 [208] [ebuild U ] virtual/udev-215 [208-r2] [ebuild U ] virtual/libudev-215 [208] [ebuild NS ] sys-kernel/vanilla-sources-3.15.7 [3.15.6] USE="-build -deblob -symlink" [ebuild U ] sys-block/parted-3.2 [3.1-r1] [ebuild U ] app-text/pdfsandwich-0.1.2 [0.0.8] [ebuild UD ] net-wireless/bluez-4.101-r9 [5.21-r1] USE="alsa%* gstreamer%* usb%* -hid2hci% -pcmcia% -test-programs%" PYTHON_SINGLE_TARGET="python2_7%*" PYTHON_TARGETS="python2_7%*" [ebuild U ] net-libs/libpcap-1.6.1-r1 [1.5.3] [ebuild U ] dev-db/postgresql-base-9.3.5 [9.3.4] [ebuild U ] dev-db/postgresql-server-9.3.5 [9.3.4-r1] [ebuild rR ] sci-libs/cbflib-0.9.3.3 [ebuild R ] x11-themes/tango-icon-theme-0.8.90 USE="-minimal%" [ebuild U ] dev-db/mysql-5.6.19 [5.5.38-r1] [ebuild U ] virtual/mysql-5.6 [5.5] [ebuild R ] app-emulation/qemu-2.0.0-r1 USE="nls%*" [ebuild UD ] media-libs/qt-gstreamer-0.10.3 [1.2.0] [ebuild U ] dev-util/kdevplatform-1.6.0-r1 [1.6.0] [ebuild r U ] app-emulation/libvirt-1.2.6 [1.2.5] [ebuild rR ] dev-python/libvirt-python-1.2.5 [ebuild rR ] app-emulation/libvirt-glib-0.1.8 [ebuild rR ] sci-mathematics/octave-3.8.1-r1 !!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: net-wireless/bluez:0 (net-wireless/bluez-5.21-r1:0/3::gentoo, installed) pulled in by >=net-wireless/bluez-5 required by (gnome-extra/gnome-user-share-3.10.2:0/0::gentoo, installed) ^^ ^ net-wireless/bluez:0/3= required by (media-sound/pulseaudio-5.0-r2:0/0::gentoo, installed) ^^^^^ (and 2 more with the same problems) (net-wireless/bluez-4.101-r9:0/0::gentoo, ebuild scheduled for merge) pulled in by <net-wireless/bluez-5:= required by (net-libs/libpcap-1.6.1-r1:0/0::gentoo, ebuild scheduled for merge) ^ ^ ^ ...
This is expected, not everything is ported to BlueZ 5.x at the same time. That's why in the profiles that enable USE="bluetooth", the flag is disabled for libpcap specifically: Enabled here: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/profiles/targets/desktop/make.defaults?view=log Disabled for libpcap here: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/profiles/targets/desktop/package.use?r1=1.39&r2=1.40
