>>> Emerging (5 of 13) sys-apps/dbus-0.62-r1 to /
 * dbus-0.62.tar.gz MD5 ;-) ...                                                        [ ok ]
 * dbus-0.62.tar.gz RMD160 ;-) ...                                                     [ ok ]
 * dbus-0.62.tar.gz SHA1 ;-) ...                                                       [ ok ]
 * dbus-0.62.tar.gz SHA256 ;-) ...                                                     [ ok ]
 * dbus-0.62.tar.gz size ;-) ...                                                       [ ok ]
 * checking ebuild checksums ;-) ...                                                   [ ok ]
 * checking auxfile checksums ;-) ...                                                  [ ok ]
 * checking miscfile checksums ;-) ...                                                 [ ok ]
 * checking dbus-0.62.tar.gz ;-) ...                                                   [ ok ]
>>> Unpacking source...
>>> Unpacking dbus-0.62.tar.gz to /var/tmp/portage/dbus-0.62-r1/work
 * Applying dbus-0.61-mono-tools-update.diff ...                                       [ ok ]
 * Applying dbus-0.61-libxml-dep.patch ...                                             [ ok ]
 * Running eautoreconf in '/var/tmp/portage/dbus-0.62-r1/work/dbus-0.62' ...
 * Running aclocal ...                                                                 [ ok ]
 * Running libtoolize --copy --force --automake ...                                    [ ok ]
 * Running aclocal ...                                                                 [ ok ]
 * Running autoconf ...                                                                [ ok ]
 * Running autoheader ...                                                              [ ok ]
 * Running automake --add-missing --copy ...                                           [ ok ]
 * Running elibtoolize in: dbus-0.62
 *   Applying max_cmd_len-1.5.0.patch ...
 *   Applying sed-1.5.6.patch ...
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/dbus-0.62-r1/work/dbus-0.62 ...
QA Notice: USE Flag 'kernel_linux' not in IUSE for sys-apps/dbus-0.62-r1
 * econf: updating dbus-0.62/config.sub with /usr/share/gnuconfig/config.sub
 * econf: updating dbus-0.62/config.guess with /usr/share/gnuconfig/config.guess
/usr/bin/confcache --confcache-ignore /var/tmp/.distcc --confcache-dir /var/tmp/confcache ./configure --prefix=/usr --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --with-x --enable-gtk --enable-python --disable-mono --enable-dnotify --disable-gcj --disable-selinux --disable-verbose-mode --disable-asserts --enable-glib --with-xml=expat --with-system-pid-file=/var/run/dbus.pid --with-system-socket=/var/run/dbus/system_bus_socket --with-session-socket-dir=/tmp --with-dbus-user=messagebus --localstatedir=/var --disable-doxygen-docs --disable-xml-docs --enable-qt3=/usr/qt/3 --with-qt3-moc=/usr/qt/3/bin/moc --enable-qt --with-qt-moc=/usr/bin/moc --build=i686-pc-linux-gnu
configure: loading cache config.cache
checking build system type... (cached) i686-pc-linux-gnu
checking host system type... (cached) i686-pc-linux-gnu
checking target system type... config.sub: missing argument
Try `config.sub --help' for more information.
configure: error: /bin/sh ./config.sub  failed

!!! Please attach the following file when filing a report to bugs.gentoo.org:
!!! /var/tmp/portage/dbus-0.62-r1/work/dbus-0.62/config.log

!!! ERROR: sys-apps/dbus-0.62-r1 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  dbus-0.62-r1.ebuild, line 72:   Called econf '--with-x' '--enable-gtk' '--enable-python' '--disable-mono' '--enable-dnotify' '--disable-gcj' '--disable-selinux' '--disable-verbose-mode' '--disable-asserts' '--enable-glib' '--with-xml=expat' '--with-system-pid-file=/var/run/dbus.pid' '--with-system-socket=/var/run/dbus/system_bus_socket' '--with-session-socket-dir=/tmp' '--with-dbus-user=messagebus' '--localstatedir=/var' '--disable-doxygen-docs' '--disable-xml-docs' '--enable-qt3=/usr/qt/3' '--with-qt3-moc=/usr/qt/3/bin/moc' '--enable-qt' '--with-qt-moc=/usr/bin/moc'
  ebuild.sh, line 540:   Called die

!!! econf failed
!!! If you need support, post the topmost build error, and the call stack if relevant.