[ решено ] неудовлетворенные зависимости, конфликт.

Добрый день.
Не пойму что нет.
Помогите пожалуйста разобраться, запутался.

emerge -auvDN world

[ebuild     U  ] xfce-base/thunar-1.8.15:0/3::gentoo [1.8.14:0/3::gentoo] USE="pcre trash-panel-plugin udisks -exif -introspection -libnotify" 2 311 KiB
[blocks B      ] app-eselect/eselect-opengl ("app-eselect/eselect-opengl" is blocking media-libs/mesa-20.0.8)

Total: 37 packages (32 upgrades, 2 new, 1 in new slot, 2 reinstalls), Size of downloads: 463 416 KiB
Conflict: 2 blocks (1 unsatisfied)

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


  (sys-libs/gdbm-1.18.1:0/6::gentoo, ebuild scheduled for merge) USE="berkdb nls readline -static-libs" pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (sys-libs/gdbm-1.13-r2:0/1.13::gentoo, installed) USE="berkdb nls readline -exporter -static-libs" pulled in by
    sys-libs/gdbm:0/1.13= required by (media-sound/pulseaudio-13.0:0/0::gentoo, installed) USE="X alsa alsa-plugin asyncns caps dbus elogind gdbm glib orc ssl tcpd udev webrtc-aec -bluetooth -doc -equalizer -gconf -gtk -ipv6 -jack -libressl -libsamplerate -lirc -native-headset -ofono-headset (-oss) -qt5 -realtime (-selinux) -sox (-system-wide) -systemd -test -zeroconf"
    (and 2 more with the same problem)

NOTE: Use the '--verbose-conflicts' option to display parents omitted above

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.

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (app-eselect/eselect-opengl-1.3.1-r4:0/0::gentoo, ebuild scheduled for merge) pulled in by
    >=app-eselect/eselect-opengl-1.3.0 required by (x11-base/xorg-server-1.20.8-r1:0/1.20.8::gentoo, ebuild scheduled for merge) USE="elogind udev xorg -debug -dmx -doc -ipv6 -kdrive -libglvnd -libressl -minimal (-selinux) -static-libs -suid -systemd -unwind -wayland -xcsecurity -xephyr -xnest -xvfb"

  (media-libs/mesa-20.0.8:0/0::gentoo, ebuild scheduled for merge) pulled in by
    >=media-libs/mesa-9.1.6[egl,X(+),abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_riscv_lp64d(-)?,abi_riscv_lp64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (>=media-libs/mesa-9.1.6[egl,X(+),abi_x86_64(-)]) required by (x11-libs/cairo-1.16.0-r4:0/0::gentoo, ebuild scheduled for merge) USE="X glib opengl svg (-aqua) -debug (-gles2-only) -static-libs -utils -valgrind"
    media-libs/mesa[egl,abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_riscv_lp64d(-)?,abi_riscv_lp64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (media-libs/mesa[egl,abi_x86_64(-)]) required by (media-libs/libepoxy-1.5.4:0/0::gentoo, installed) USE="X egl -test"
    media-libs/mesa required by @selected 
    >=media-libs/mesa-9.0[egl?,gbm?,gles2?,wayland?,abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_riscv_lp64d(-)?,abi_riscv_lp64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (>=media-libs/mesa-9.0[egl,abi_x86_64(-)]) required by (media-libs/gst-plugins-base-1.16.2:1.0/1.0::gentoo, installed) USE="X egl introspection nls ogg opengl orc pango vorbis -alsa -gbm -gles2 -ivorbis -theora -wayland"
    >=media-libs/mesa-18[X(+),egl,gbm] required by (x11-base/xorg-server-1.20.8-r1:0/1.20.8::gentoo, ebuild scheduled for merge) USE="elogind udev xorg -debug -dmx -doc -ipv6 -kdrive -libglvnd -libressl -minimal (-selinux) -static-libs -suid -systemd -unwind -wayland -xcsecurity -xephyr -xnest -xvfb"
    media-libs/mesa[X(+),abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_riscv_lp64d(-)?,abi_riscv_lp64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (media-libs/mesa[X(+),abi_x86_64(-)]) required by (x11-libs/gtk+-3.24.20:3/3::gentoo, installed) USE="X introspection (-aqua) -broadway -cloudprint -colord -cups -examples -gtk-doc -test -vim-syntax -wayland -xinerama"
    media-libs/mesa[egl] required by (app-office/libreoffice-bin-, installed) USE="-gnome -java -kde" PYTHON_SINGLE_TARGET="python3_7"
    >=media-libs/mesa-9.1.6[X(+),abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_riscv_lp64d(-)?,abi_riscv_lp64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] (>=media-libs/mesa-9.1.6[X(+),abi_x86_64(-)]) required by (virtual/opengl-7.0-r2:0/0::gentoo, installed) USE=""

For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):


Проблему решил. У

Проблему решил.
У x11-base/xorg-server -libglvnd был, убрал флаг и все завелось.

Что бы ты не делал , жизнь слишком коротка!
Блог о BSD системах.



Как бы логично, ведь у тебя

Как бы логично, ведь у тебя app-eselect/eselect-opengl и media-libs/mesa с -libglvnd.
Чтобы не было конфликтов, такими флагами надо управлять глобально в make.conf

Но сама команда обновления мира неполна - она не учитывает зависимостей, лучше:

emerge -uDNU --with-bdeps=y --changed-deps=y --verbose-conflicts @world -q

Ради интереса можешь прогнать её на уже обновлённом тобой мире - думаю, что будешь удивлен! ;)

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