missing ebuilds from multilib portage

emerge -avuND world --autounmask-write

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild     UD ] app-emulation/emul-linux-x86-baselibs-20121202::gentoo [99999999::multilib] USE="development -abiwrapper (-kerberos%) (-ldap%*) (-nodep%)" MULTILIB_ABI="amd64 -x86" 40,236 kB
[ebuild  N     ] app-emulation/emul-linux-x86-db-20121202  USE="development -abiwrapper" MULTILIB_ABI="amd64 -x86" 1,789 kB
[ebuild     U  ] dev-perl/Net-SSLeay-1.520.0 [1.490.0] USE="-abiwrapper" MULTILIB_ABI="amd64 x86" 381 kB
[ebuild  N     ] perl-core/Digest-SHA-5.820.0  USE="-abiwrapper" MULTILIB_ABI="amd64 x86" 0 kB
[ebuild     U  ] virtual/perl-Digest-SHA-5.820.0 [5.47] USE="-abiwrapper" MULTILIB_ABI="amd64 x86" 0 kB
[ebuild     U  ] dev-perl/IO-Socket-SSL-1.840.0 [1.440.0] USE="-abiwrapper -idn" MULTILIB_ABI="amd64 x86" 79 kB
[ebuild     U  ] app-admin/eselect-1.3.4 [1.3.1] USE="-abiwrapper -doc" MULTILIB_ABI="amd64 x86" 162 kB
[ebuild     UD ] app-emulation/emul-linux-x86-xlibs-20121202::gentoo [99999999::multilib] USE="development opengl -abiwrapper (-nodep%)" MULTILIB_ABI="amd64 -x86" 2,416 kB
[ebuild     U  ] www-client/firefox-bin-17.0.4 [17.0.3] USE="startup-notification -abiwrapper" LINGUAS="-af -ak -ar -as -ast -be -bg -bn_BD -bn_IN -br -bs -ca -cs -csb -cy -da -de -el -en_GB -en_ZA -eo -es_AR -es_CL -es_ES -es_MX -et -eu -fa -fi -fr -fy_NL -ga_IE -gd -gl -gu_IN -he -hi_IN -hr -hu -hy_AM -id -is -it -ja -kk -kn -ko -ku -lg -lt -lv -mai -mk -ml -mr -nb_NO -nl -nn_NO -nso -or -pa_IN -pl -pt_BR -pt_PT -rm -ro -ru -si -sk -sl -son -sq -sr -sv_SE -ta -ta_LK -te -th -tr -uk -vi -zh_CN -zh_TW -zu" MULTILIB_ABI="amd64 -x86" 23,070 kB
[ebuild     U  ] mail-client/thunderbird-bin-17.0.4 [17.0.3] USE="crashreporter -abiwrapper" LINGUAS="-ar -ast -be -bg -bn_BD -br -ca -cs -da -de -el -en_GB -es_AR -es_ES -et -eu -fi -fr -fy_NL -ga_IE -gd -gl -he -hu -id -is -it -ja -ko -lt -nb_NO -nl -nn_NO -pa_IN -pl -pt_BR -pt_PT -rm -ro -ru -si -sk -sl -sq -sr -sv_SE -ta_LK -tr -uk -vi -zh_CN -zh_TW" MULTILIB_ABI="amd64 -x86" 25,328 kB
[ebuild     UD ] app-emulation/emul-linux-x86-medialibs-20121202::gentoo [99999999::multilib] USE="development -abiwrapper (-nodep%)" MULTILIB_ABI="amd64 -x86" 10,124 kB
[ebuild     UD ] app-emulation/emul-linux-x86-soundlibs-20121202::gentoo [99999999::multilib] USE="alsa development -abiwrapper (-nodep%) (-pulseaudio%*)" MULTILIB_ABI="amd64 -x86" 6,932 kB
[ebuild     UD ] app-emulation/emul-linux-x86-opengl-20121202-r1::gentoo [99999999::multilib] USE="development -abiwrapper (-nodep%)" MULTILIB_ABI="amd64 -x86" 60,640 kB
[ebuild     U  ] sys-apps/man-pages-3.47 [3.45] USE="nls -abiwrapper" LINGUAS="-da -de -fr -it -ja -nl -pl -ro -ru -zh_CN" MULTILIB_ABI="amd64 -x86" 1,765 kB
[ebuild     UD ] app-emulation/emul-linux-x86-gtklibs-20121202::gentoo [99999999::multilib] USE="development -abiwrapper (-nodep%) (-xfce%)" MULTILIB_ABI="amd64 -x86" 6,047 kB
[ebuild  N     ] app-emulation/emul-linux-x86-gstplugins-20121202  USE="development -abiwrapper" MULTILIB_ABI="amd64 -x86" 3,355 kB
[ebuild     U  ] dev-vcs/git-1.8.1.5 [1.7.12.4] USE="blksha1 curl gpg iconv nls pcre perl python subversion threads webdav (-abiwrapper) -cgi -cvs -doc -emacs -gnome-keyring% -gtk -highlight (-ppcsha1) {-test} -tk -xinetd" MULTILIB_ABI="amd64 x86" 0 kB

Total: 17 packages (8 upgrades, 6 downgrades, 3 new), Size of downloads: 182,316 kB

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

app-emulation/emul-linux-x86-soundlibs:0

  (app-emulation/emul-linux-x86-soundlibs-99999999::multilib, installed) pulled in by
    =app-emulation/emul-linux-x86-soundlibs-99999999[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-medialibs-99999999::multilib, installed)
    (and 1 more with the same problem)

  (app-emulation/emul-linux-x86-soundlibs-20121202::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-soundlibs-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-gstplugins-20121202::gentoo, ebuild scheduled for merge)
    (and 1 more with the same problem)

app-emulation/emul-linux-x86-gtklibs:0

  (app-emulation/emul-linux-x86-gtklibs-99999999::multilib, installed) pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (app-emulation/emul-linux-x86-gtklibs-20121202::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-gtklibs-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-gstplugins-20121202::gentoo, ebuild scheduled for merge)

app-emulation/emul-linux-x86-medialibs:0

  (app-emulation/emul-linux-x86-medialibs-20121202::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-medialibs-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-gstplugins-20121202::gentoo, ebuild scheduled for merge)
    (and 1 more with the same problem)

  (app-emulation/emul-linux-x86-medialibs-99999999::multilib, installed) pulled in by
    =app-emulation/emul-linux-x86-medialibs-99999999[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-soundlibs-99999999::multilib, installed)

app-emulation/emul-linux-x86-baselibs:0

  (app-emulation/emul-linux-x86-baselibs-99999999::multilib, installed) pulled in by
    =app-emulation/emul-linux-x86-baselibs-99999999[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-xlibs-99999999::multilib, installed)
    >=app-emulation/emul-linux-x86-baselibs-20130224[development,multilib_abi_amd64?] required by (app-emulation/wine-1.5.25::gentoo, installed)
    (and 3 more with the same problems)

  (app-emulation/emul-linux-x86-baselibs-20121202::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-baselibs-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-db-20121202::gentoo, ebuild scheduled for merge)
    (and 5 more with the same problem)

app-emulation/emul-linux-x86-xlibs:0

  (app-emulation/emul-linux-x86-xlibs-20121202::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-xlibs-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-medialibs-20121202::gentoo, ebuild scheduled for merge)
    (and 1 more with the same problem)

  (app-emulation/emul-linux-x86-xlibs-99999999::multilib, installed) pulled in by
    =app-emulation/emul-linux-x86-xlibs-99999999[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-medialibs-99999999::multilib, installed)
    (and 2 more with the same problem)

app-emulation/emul-linux-x86-opengl:0

  (app-emulation/emul-linux-x86-opengl-99999999::multilib, installed) pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (app-emulation/emul-linux-x86-opengl-20121202-r1::gentoo, ebuild scheduled for merge) pulled in by
    ~app-emulation/emul-linux-x86-opengl-20121202[multilib_abi_amd64?] required by (app-emulation/emul-linux-x86-gtklibs-20121202::gentoo, ebuild scheduled for merge)


It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously.  If such a conflict exists in
the dependencies of two different packages, then those packages can
not be installed simultaneously. You may want to try a larger value of
the --backtrack option, such as --backtrack=30, in order to see if
that will solve this conflict automatically.

For more information, see MASKED PACKAGES section in the emerge man
page or refer to the Gentoo Handbook.