The epiphany-extensions-2.14.1-r1 ebuild checks whether epiphany was built with the DBUS use flag, but but epiphany-2.14.3 does _not_ have that flag.
Probably same problem here. !!! ERROR: www-client/epiphany-extensions-2.14.1-r1 failed. Call stack: ebuild.sh, line 1562: Called dyn_setup ebuild.sh, line 665: Called pkg_setup epiphany-extensions-2.14.1-r1.ebuild, line 40: Called built_with_use 'www-client/epiphany' 'dbus' eutils.eclass, line 1614: Called die !!! www-client/epiphany-2.14.2.1-r1 does not actually support the dbus USE flag! !!! If you need support, post the topmost build error, and the call stack if relevant. localhost ~ # emerge --info Portage 2.1.1 (default-linux/x86/2006.1/desktop, gcc-4.1.1, glibc-2.4-r3, 2.6.17-gentoo-r8-Urath-1 i686) ================================================================= System uname: 2.6.17-gentoo-r8-Urath-1 i686 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.12.5 Last Sync: Sat, 23 Sep 2006 18:30:01 +0000 ccache version 2.3 [enabled] app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.7, 2.0.30 dev-lang/python: 2.3.5, 2.4.3-r1 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.3 dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r3 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer -ffast-math -funroll-all-loops -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer -ffast-math -funroll-all-loops -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp.roedu.net/pub/mirrors/gentoo.org/ ftp://ftp.caliu.info/pub/gentoo/ ftp://mirror.etf.bg.ac.yu/gentoo/ ftp://ftp.lug.ro/gentoo" LINGUAS="en ro" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X alsa apach2 apache2 arts avi bash-completion berkdb bitmap-fonts bzip2 cairo cdr cli crypt dbus dlloader doc dri dvd dvdr eds elibc_glibc emboss encode esd fam firefox fortran gdbm gif gnome gphoto2 gpm gstreamer gtk gtk2 hal input_devices_keyboard input_devices_mouse isdnlog java jpeg kernel_linux ldap libg++ linguas_en linguas_ro mad mikmod mp3 mpeg ncurses nls nptl nptlonly ogg opengl oss pam pcre perl png ppds pppd python qt qt3 qt4 quicktime quiktime readline reflection sdl session spell spl ssl svg tcpd threads truetype truetype-fonts type1-fonts udev unicode usb userland_GNU video_cards_fbdev video_cards_nvidia video_cards_vesa vorbis win32codecs xml xml2 xmms xorg xv xvid yahoo zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Fixed. Thanks for reporting.