Re: [gentoo-user] Portage spokes again...

Rich Freeman <rich0@g.o> [16-12-21 20:12]:
> On Wed, Dec 21, 2016 at 1:44 PM,  <Meino.Cramer@×××.de> wrote:
> > Corbin Bird <corbinbird@×××××××.net> [16-12-21 17:12]:
> > The first run of emerge tells me to add the systemd USE flag to dbus.
> > I did that and ran into to problems I reported.
>
> Ok, I think you left that bit out...
>
> And this is why it is helpful to understand why portage is doing
> something before just changing configuration settings.  Adding the
> systemd USE flag to packages is a really quick way to end up with
> systemd getting installed.  Generally speaking it shouldn't just
> happen by default...
>
> Can you show the output when you add -t to the emerge command?  I
> think that will be helpful.  However, I think an earlier poster was on
> the right track when he pointed out that the tmpfiles virtual requires
> an unstable version of openrc.  I'm not sure why that was getting
> pulled in in the first place, and -t should show that.
>
> >
> > emerge: there are no ebuilds built with USE flags to satisfy "media-libs/mesa[egl,gbm,gles2?,wayland]".
> > !!! One of the following packages is required to complete your request:
> > - media-libs/mesa-11.2.2::gentoo (Change USE: +wayland)
> > (dependency required by "kde-plasma/kwin-5.8.3::gentoo" [ebuild])
> > (dependency required by "kde-plasma/plasma-workspace-5.8.3-r4::gentoo" [ebuild])
> > (dependency required by "net-p2p/ktorrent-5.0.1::gentoo[shutdown]" [ebuild])
> > (dependency required by "@selected" [set])
> > (dependency required by "@world" [argument])
> > [1]    20322 exit 1     emerge -t --update --newuse --deep --with-bdeps=y --tree --keep-going
> >
> > What?
> >
> > Now wayland shall be installed? IIIIIKKKKKSSSS!
> > I want my UNIX back!
>
> Interesting.  I just noticed that it pulled in wayland for me.  I have
> no idea why kwin requires wayland support in mesa.  It obviously works
> fine with xorg.  I might do some looking into that.
>
> There isn't really anything non-UNIX about wayland, though I'm not
> sure I'd be in a rush to use it just yet.  It is just a replacement
> for xorg (to say the least, it doesn't purport to be a
> feature-complete replacement and may never be).
>
> Your wayland issues and your systemd issues are most likely entirely
> unrelated...
>
> --
> Rich
>
Hi Rich,

to confess everything ... this time
:)

The following output is base on setting "-systemd" and "-wayland"
in make.confs USE flag, "-t" was set also.

And here the master portage spoke words:

emerge -t --update --newuse --deep --with-bdeps=y --tree --keep-going --backtrack=30 --exclude media-video/nvidia-settings --exclude app-misc/screen --exclude app-misc/ytree --exclude dev-python/sip --exclude app-shells/bash @world -v
              
These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[nomerge       ] sci-geosciences/foxtrotgps-1.2.0::gentoo  USE="-debug" 
[ebuild     U  ]  sci-geosciences/gpsd-3.10::gentoo [3.9-r1::gentoo] USE="X cxx dbus ipv6 ncurses python shm sockets -bluetooth -debug -latency_timing -ntp -qt4 -static% {-test} -udev -usb (-systemd%)" GPSD_PROTOCOLS="aivdm ashtech earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 navcom nmea ntrip oceanserver oncore rtcm104v2 rtcm104v3 sirf superstar2 tnt tripmate tsip ublox%* -fury -geostar -nmea2000 (-ubx%*)" PYTHON_TARGETS="python2_7%*" 1530 KiB
[nomerge       ] media-sound/ardour-5.5:5::gentoo  USE="jack (-altivec) -doc" CPU_FLAGS_X86="mmx sse -3dnow" 
[ebuild     U  ]  media-libs/slv2-0.6.6-r1::gentoo [0.6.6::gentoo] USE="jack -doc" 0 KiB
[nomerge       ] media-video/mplayer-1.2.1::gentoo  USE="X alsa cdio cdparanoia cpudetection dvb dvd dvdnav enca encode faac gif iconv ipv6 jack jpeg jpeg2k ladspa libass lirc lzo mad mp3 network opengl osdmenu png sdl shm truetype unicode v4l vdpau vorbis x264 xscreensaver xv xvmc -a52 -aalib (-altivec) (-aqua) -bidi -bl -bluray -bs2b -cddb -debug -dga -directfb -doc -dts -dv -faad -fbcon -ftp -ggi -gsm -joystick -libcaca -libmpeg2 -live -md5sum -mng -nas -nut -openal -oss -pnm -pulseaudio -pvr -radio -rar -rtc -rtmp -samba (-selinux) -speex -tga -theora -toolame -tremor -twolame -vcd (-vidix) -xinerama -xvid -yuv4mpeg -zoran" CPU_FLAGS_X86="mmx sse sse2 -3dnow -3dnowext -mmxext -ssse3" VIDEO_CARDS="-mga -s3virge -tdfx" 
[ebuild     U  ]  dev-libs/libcdio-paranoia-0.93_p1::gentoo [0.90_p1-r1::gentoo] USE="cxx -static-libs {-test}" ABI_X86="(64) -32 (-x32)" 670 KiB
[ebuild     U  ] app-text/tesseract-3.04.01::gentoo [3.04.00-r2::gentoo] USE="jpeg png scrollview tiff -doc -examples -math% -opencl -osd -static-libs -training -webp" L10N="-ar -bg -ca -chr -cs -da -de -el -es -fi -fr -he -hi -hu -id -it -ja -ko -lt -lv -nl -no -pl -pt -ro -ru -sk -sl -sr -sv -th -tl -tr -uk -vi -zh-CN -zh-TW" 2216 KiB
[ebuild     U  ] app-admin/conky-1.10.4::gentoo [1.9.0-r3::gentoo] USE="X iconv%* ipv6%* lua-cairo lua-imlib ncurses nvidia portmon -apcupsd -audacious -cmus% -curl -eve -hddtemp -ical% -imlib -iostats -irc% -lua-rsvg% -math -moc -mpd -mysql% -nano-syntax -pulseaudio% -rss -systemd% -thinkpad -truetype -vim-syntax -weather-metar -weather-xoap -webserver% -wifi -xmms2 (-debug%) (-lua%*)" 357 KiB
[ebuild     U  ] dev-perl/DBD-SQLite-1.500.0::gentoo [1.480.0::gentoo] USE="-system-sqlite% {-test}" 1977 KiB
[ebuild   R   ~] dev-python/dbus-python-1.2.4::gentoo  USE="-doc -examples {-test}" PYTHON_TARGETS="python2_7 -python3_4 -python3_5*" 0 KiB
[ebuild     U  ] x11-libs/fox-1.7.54:1.7::gentoo [1.7.49:1.7::gentoo] USE="bzip2 jpeg opengl png tiff truetype zlib -debug -doc -profile" 5258 KiB
[ebuild     U  ] media-gfx/mypaint-1.1.0-r2::gentoo [1.1.0-r1::gentoo] LINGUAS="-cs -de -en_CA -en_GB -es -fr -hu -id -it -ja -ko -nb -nn_NO -pl -pt_BR -ro -ru -sl -sv -uk -zh_CN -zh_TW" PYTHON_TARGETS="python2_7%*" 0 KiB
[ebuild     U  ] mail-filter/spamassassin-3.4.1-r8::gentoo [3.4.0-r1::gentoo] USE="bayes%* berkdb ipv6 ssl -cron% -ldap (-libressl) -mysql -postgres -qmail -sqlite {-test%} (-doc%)" 2648 KiB
[nomerge       ] net-p2p/ktorrent-5.0.1:5::gentoo [4.3.1-r1:4::gentoo] USE="bwscheduler downloadorder handbook infowidget logviewer magnetgenerator mediaplayer shutdown stats upnp zeroconf -debug" 
[blocks b      ]  net-p2p/ktorrent:4 ("net-p2p/ktorrent:4" is blocking net-p2p/ktorrent-5.0.1)
[uninstall     ]   net-p2p/ktorrent-4.3.1-r1:4::gentoo  USE="bwscheduler downloadorder handbook infowidget ipfilter kross logviewer magnetgenerator mediaplayer scanfolder search stats upnp zeroconf (-aqua) -debug -rss -webinterface" L10N="-ar -ast -be -bg -bs -ca -ca-valencia -cs -da -de -el -en-GB -eo -es -et -eu -fi -fr -ga -gl -hi -hne -hr -hu -is -it -ja -km -ku -lt -lv -mai -ms -nb -nds -nl -nn -oc -pl -pt -pt-BR -ro -ru -se -si -sk -sl -sq -sr -sr-Latn -sr-Latn-ijekavsk -sr-ijekavsk -sv -tr -ug -uk -zh-CN -zh-TW" 
[ebuild  NS    ] net-p2p/ktorrent-5.0.1:5::gentoo [4.3.1-r1:4::gentoo] USE="bwscheduler downloadorder handbook infowidget logviewer magnetgenerator mediaplayer shutdown stats upnp zeroconf -debug" 2103 KiB
[ebuild  N     ]  kde-plasma/plasma-workspace-5.8.3-r4:5::gentoo  USE="calendar handbook semantic-desktop -debug -geolocation -gps (-prison) -qalculate {-test}" 6793 KiB
[ebuild  N     ]   kde-plasma/plasma-integration-5.8.3:5::gentoo  USE="-debug {-test}" 50 KiB
[ebuild  N     ]   kde-plasma/milou-5.8.3:5::gentoo  USE="-debug" 54 KiB
[ebuild  N     ]   kde-plasma/ksysguard-5.8.3:5::gentoo  USE="handbook -debug -lm_sensors" 477 KiB
[ebuild  N     ]   kde-apps/kio-extras-16.08.3:5::gentoo  USE="handbook sftp -debug -exif -mtp -openexr -phonon -samba -slp {-test}" 273 KiB
[ebuild  N     ]   kde-frameworks/ktexteditor-5.26.0-r2:5/5.26::gentoo  USE="-debug -git {-test}" 2854 KiB
[ebuild  N     ]   kde-frameworks/kxmlrpcclient-5.26.0:5/5.26::gentoo  USE="-debug {-test}" 28 KiB
[ebuild  N     ]   kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 3883 KiB
[ebuild  N     ]   kde-frameworks/baloo-5.26.0-r2:5/5.26::gentoo  USE="-debug {-test}" 184 KiB
[ebuild  NS    ]  net-libs/libktorrent-2.0.1:5::gentoo [1.3.1:4::gentoo] USE="-debug {-test}" 661 KiB
[nomerge       ] kde-plasma/ksysguard-5.8.3:5::gentoo  USE="handbook -debug -lm_sensors" 
[ebuild  N     ]  kde-plasma/libksysguard-5.8.3:5::gentoo  USE="X detailedmemory -debug {-test}" 559 KiB
[nomerge       ] kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 
[ebuild  N     ]  kde-plasma/breeze-5.8.3:5::gentoo  USE="-debug -qt4 -wayland" 32498 KiB
[ebuild  N     ]  kde-plasma/kscreenlocker-5.8.3:5::gentoo  USE="pam -debug {-test}" 106 KiB
[nomerge       ] kde-plasma/plasma-integration-5.8.3:5::gentoo  USE="-debug {-test}" 
[nomerge       ]  kde-plasma/breeze-5.8.3:5::gentoo  USE="-debug -qt4 -wayland" 
[ebuild  N     ]   kde-frameworks/frameworkintegration-5.26.0:5/5.26::gentoo  USE="X -debug {-test}" 1709 KiB
[ebuild     U ~] sys-apps/openrc-0.23::gentoo [0.22.4::gentoo] USE="ncurses netifrc pam unicode -audit -debug -newnet (-prefix) (-selinux) -static-libs -tools" 206 KiB
[nomerge       ] app-text/tesseract-3.04.01::gentoo [3.04.00-r2::gentoo] USE="jpeg png scrollview tiff -doc -examples -math% -opencl -osd -static-libs -training -webp" L10N="-ar -bg -ca -chr -cs -da -de -el -es -fi -fr -he -hi -hu -id -it -ja -ko -lt -lv -nl -no -pl -pt -ro -ru -sk -sl -sr -sv -th -tl -tr -uk -vi -zh-CN -zh-TW" 
[ebuild  N     ]  dev-java/piccolo2d-3.0-r1::gentoo  USE="-doc -examples -source" 768 KiB
[ebuild  NS    ]   dev-java/swt-3.8.2-r1:3.8::gentoo [3.7.2-r1:3.7::gentoo] USE="cairo opengl -gnome -webkit" 5728 KiB
[ebuild   R    ] media-libs/mesa-12.0.1::gentoo  USE="classic dri3 egl gallium gbm llvm nptl udev vaapi vdpau wayland* xvmc -bindist -d3d9 -debug -gles1 -gles2 -opencl -openmax -osmesa -pax_kernel -pic (-selinux) -valgrind -xa" ABI_X86="32 (64) (-x32)" VIDEO_CARDS="(-freedreno) -i915 -i965 -ilo -intel -nouveau -r100 -r200 -r300 -r600 -radeon -radeonsi (-vc4) -vmware" 0 KiB
[nomerge       ] kde-plasma/plasma-workspace-5.8.3-r4:5::gentoo  USE="calendar handbook semantic-desktop -debug -geolocation -gps (-prison) -qalculate {-test}" 
[ebuild  N     ]  dev-qt/qtgraphicaleffects-5.6.2:5/5.6::gentoo  USE="-debug {-test}" 14406 KiB
[ebuild  N     ]  kde-frameworks/kjsembed-5.26.0:5/5.26::gentoo  USE="-debug" 166 KiB
[ebuild  N     ]  kde-apps/kholidays-16.04.3:5::gentoo  USE="-debug {-test}" 172 KiB
[nomerge       ] net-p2p/ktorrent-5.0.1:5::gentoo [4.3.1-r1:4::gentoo] USE="bwscheduler downloadorder handbook infowidget logviewer magnetgenerator mediaplayer shutdown stats upnp zeroconf -debug" 
[ebuild  N     ]  kde-frameworks/kplotting-5.26.0:5/5.26::gentoo  USE="-debug {-test}" 29 KiB
[nomerge       ] kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 
[ebuild  N     ]  kde-frameworks/kidletime-5.26.0:5/5.26::gentoo  USE="-debug" 26 KiB
[nomerge       ] sys-apps/openrc-0.23::gentoo [0.22.4::gentoo] USE="ncurses netifrc pam unicode -audit -debug -newnet (-prefix) (-selinux) -static-libs -tools" 
[ebuild  N    ~]  virtual/tmpfiles-0::gentoo  0 KiB
[nomerge       ] virtual/tmpfiles-0::gentoo 
[nomerge       ]  sys-apps/systemd-226-r2:0/2::gentoo  USE="acl kdbus kmod lz4 pam seccomp ssl (-apparmor) -audit -build -cryptsetup -curl -elfutils -gcrypt -gnuefi -http -idn -importd -lzma -nat -policykit -qrcode (-selinux) -sysv-utils {-test} -vanilla -xkb" ABI_X86="(64) -32 (-x32)" 
[ebuild  N     ]   sys-apps/gentoo-systemd-integration-6::gentoo  63 KiB
[ebuild   R    ]   sys-apps/dbus-1.10.12::gentoo  USE="X systemd* -debug -doc (-selinux) -static-libs {-test} -user-session" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild  N     ]    sys-apps/systemd-226-r2:0/2::gentoo  USE="acl kdbus kmod lz4 pam seccomp ssl (-apparmor) -audit -build -cryptsetup -curl -elfutils -gcrypt -gnuefi -http -idn -importd -lzma -nat -policykit -qrcode (-selinux) -sysv-utils {-test} -vanilla -xkb" ABI_X86="(64) -32 (-x32)" 3823 KiB
[nomerge       ] kde-frameworks/baloo-5.26.0-r2:5/5.26::gentoo  USE="-debug {-test}" 
[ebuild  N     ]  kde-frameworks/kfilemetadata-5.26.0-r1:5/5.26::gentoo  USE="-debug -epub -exif -ffmpeg -libav -pdf -taglib {-test}" 129 KiB
[nomerge       ] kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 
[ebuild  N     ]  kde-plasma/kdecoration-5.8.3:5::gentoo  USE="-debug {-test}" 35 KiB
[nomerge       ] net-p2p/ktorrent-5.0.1:5::gentoo [4.3.1-r1:4::gentoo] USE="bwscheduler downloadorder handbook infowidget logviewer magnetgenerator mediaplayer shutdown stats upnp zeroconf -debug" 
[ebuild  N     ]  kde-frameworks/kdnssd-5.26.0:5/5.26::gentoo  USE="nls -debug {-test} -zeroconf" 56 KiB
[nomerge       ] kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 
[ebuild  N     ]  kde-frameworks/kwayland-5.26.0:5/5.26::gentoo  USE="-debug {-test}" 228 KiB
[ebuild  N     ]   dev-qt/qtwayland-5.6.2:5/5.6::gentoo  USE="-debug -egl -qml {-test} -wayland-compositor -xcomposite" 261 KiB
[nomerge       ] kde-plasma/plasma-workspace-5.8.3-r4:5::gentoo  USE="calendar handbook semantic-desktop -debug -geolocation -gps (-prison) -qalculate {-test}" 
[ebuild  N     ]  dev-qt/qtpaths-5.6.2:5/5.6::gentoo  USE="-debug {-test}" 0 KiB
[ebuild  N     ]  dev-qt/qdbus-5.6.2:5/5.6::gentoo  USE="-debug {-test}" 0 KiB
[ebuild     U  ] dev-perl/XML-Parser-2.440.0::gentoo [2.410.0-r2::gentoo] 232 KiB
[nomerge       ] kde-plasma/kwin-5.8.3:5::gentoo  USE="handbook -debug -gles2 -multimedia {-test}" 
[ebuild  N     ]  dev-libs/libinput-1.4.2:0/10::gentoo  USE="{-test}" INPUT_DEVICES="-wacom" 880 KiB
[ebuild     U  ] app-emulation/free42-1.5.10::gentoo [1.5.8::gentoo] USE="alsa" 22087 KiB
[nomerge       ] kde-plasma/breeze-5.8.3:5::gentoo  USE="-debug -qt4 -wayland" 
[ebuild  N     ]  kde-frameworks/breeze-icons-5.26.0:5/5.26::gentoo  USE="{-test}" 1339 KiB
[ebuild     U  ] media-libs/netpbm-10.70.00::gentoo [10.66.00::gentoo] USE="X jbig jpeg jpeg2k png rle tiff xml zlib -doc -static-libs (-svga)" CPU_FLAGS_X86="sse2" 2561 KiB
[ebuild     U  ] dev-libs/libcdio-0.93:0/15::gentoo [0.92:0/15::gentoo] USE="cxx -cddb -minimal -static-libs {-test}" ABI_X86="(64) -32 (-x32)" 2660 KiB
[nomerge       ] dev-qt/qtwayland-5.6.2:5/5.6::gentoo  USE="-debug -egl -qml {-test} -wayland-compositor -xcomposite" 
[ebuild  N     ]  dev-libs/wayland-1.11.0::gentoo  USE="-doc -static-libs" ABI_X86="32 (64) (-x32)" 366 KiB
[nomerge       ] kde-plasma/plasma-integration-5.8.3:5::gentoo  USE="-debug {-test}" 
[ebuild  N     ]  media-fonts/hack-2.020::gentoo  USE="X" 316 KiB
[ebuild     U  ] sys-libs/slang-2.3.0::gentoo [2.2.4-r1::gentoo] USE="pcre png readline zlib -cjk -static-libs" ABI_X86="(64) -32 (-x32)" 1498 KiB
[nomerge       ] kde-base/kdelibs-4.14.24:4/4.14::gentoo  USE="acl bzip2 crypt handbook jpeg2k nls opengl policykit ssl udev udisks upower (webkit) (-altivec) (-aqua) -debug -doc (-fam) -kerberos (-libressl) -lzma -openexr -spell {-test} -zeroconf" CPU_FLAGS_X86="mmx sse sse2 -3dnow" 
[nomerge       ]  kde-apps/khelpcenter-16.08.3:5::gentoo  USE="handbook -debug" 
[ebuild     U  ]   dev-libs/xapian-1.2.24:0/1.2.22::gentoo [1.2.22:0/1.2.22::gentoo] USE="brass chert inmemory -doc -static-libs" CPU_FLAGS_X86="sse sse2" 3135 KiB
[ebuild     U  ] net-libs/libmnl-1.0.4:0/0.2.0::gentoo [1.0.3-r1:0/0::gentoo] USE="-examples -static-libs" 295 KiB
[nomerge       ] kde-frameworks/baloo-5.26.0-r2:5/5.26::gentoo  USE="-debug {-test}" 
[ebuild  N     ]  dev-db/lmdb-0.9.18:0/0.9.18::gentoo  USE="-static-libs" 136 KiB
[blocks B      ] net-libs/libktorrent:4 ("net-libs/libktorrent:4" is blocking net-libs/libktorrent-2.0.1)
[blocks B      ] sys-apps/systemd ("sys-apps/systemd" is blocking sys-fs/udev-225-r1)
[blocks B      ] sys-fs/udev ("sys-fs/udev" is blocking sys-apps/gentoo-systemd-integration-6)
[blocks B      ] sys-apps/gentoo-systemd-integration ("sys-apps/gentoo-systemd-integration" is blocking sys-fs/udev-225-r1)
[blocks B      ] sys-fs/udev ("sys-fs/udev" is blocking sys-apps/systemd-226-r2)

Total: 57 packages (17 upgrades, 34 new, 3 in new slots, 3 reinstalls, 1 uninstall), Size of downloads: 128467 KiB
Conflict: 6 blocks (5 unsatisfied)

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

  (net-libs/libktorrent-2.0.1:5/5::gentoo, ebuild scheduled for merge) pulled in by
    <net-libs/libktorrent-2.1:5 required by (net-p2p/ktorrent-5.0.1:5/5::gentoo, ebuild scheduled for merge)
    >=net-libs/libktorrent-2.0.1:5 required by (net-p2p/ktorrent-5.0.1:5/5::gentoo, ebuild scheduled for merge)

  (sys-fs/udev-225-r1:0/0::gentoo, installed) pulled in by
    sys-fs/udev required by @selected
    >=sys-fs/udev-208-r1 required by (virtual/udev-215:0/0::gentoo, installed)
    >=sys-fs/udev-208-r1:0/0[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_ppc_32(-)?,abi_ppc_64(-)?,abi_s390_32(-)?,abi_s390_64(-)?,static-libs?] (>=sys-fs/udev-208-r1:0/0[abi_x86_32(-),abi_x86_64(-)]) required by (virtual/libudev-215-r1:0/1::gentoo, installed)

  (net-libs/libktorrent-1.3.1:4/4::gentoo, installed) pulled in by
    net-libs/libktorrent:4 required by @selected

  (sys-apps/systemd-226-r2:0/2::gentoo, ebuild scheduled for merge) pulled in by
    >=sys-apps/systemd-207 required by (sys-apps/gentoo-systemd-integration-6:0/0::gentoo, ebuild scheduled for merge)
    sys-apps/systemd required by (virtual/tmpfiles-0:0/0::gentoo, ebuild scheduled for merge)
    sys-apps/systemd:0= required by (sys-apps/dbus-1.10.12:0/0::gentoo, ebuild scheduled for merge)


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

https://wiki.gentoo.org/wiki/Handbook:X86/Working/Portage#Blocked_packages


The following keyword changes are necessary to proceed:
 (see "package.accept_keywords" in the portage(5) man page for more details)
# required by sys-apps/openrc-0.23::gentoo
# required by @system
# required by @world (argument)
=virtual/tmpfiles-0 ~amd64

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by kde-plasma/kwin-5.8.3::gentoo
# required by kde-plasma/plasma-workspace-5.8.3-r4::gentoo
# required by net-p2p/ktorrent-5.0.1::gentoo[shutdown]
# required by @selected
# required by @world (argument)
>=media-libs/mesa-12.0.1 wayland
# required by media-libs/mesa-12.0.1::gentoo[wayland]
# required by kde-plasma/kwin-5.8.3::gentoo
# required by kde-plasma/plasma-workspace-5.8.3-r4::gentoo
# required by net-p2p/ktorrent-5.0.1::gentoo[shutdown]
# required by @selected
# required by @world (argument)
>=dev-libs/wayland-1.11.0 abi_x86_32
# required by sys-apps/systemd-226-r2::gentoo
# required by sys-apps/gentoo-systemd-integration-6::gentoo
>=sys-apps/dbus-1.10.12 systemd

Use --autounmask-write to write changes to config files (honoring
CONFIG_PROTECT). Carefully examine the list of proposed changes,
paying special attention to mask or keyword changes that may expose
experimental or unstable packages.

emerge: there are no ebuilds built with USE flags to satisfy "media-libs/mesa[egl,gbm,gles2?,wayland]".
!!! One of the following packages is required to complete your request:
- media-libs/mesa-11.2.2::gentoo (Change USE: +wayland)
(dependency required by "kde-plasma/kwin-5.8.3::gentoo" [ebuild])
(dependency required by "kde-plasma/plasma-workspace-5.8.3-r4::gentoo" [ebuild])
(dependency required by "net-p2p/ktorrent-5.0.1::gentoo[shutdown]" [ebuild])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument])
[1]    25064 exit 1     emerge -t --update --newuse --deep --with-bdeps=y --tree --keep-going        
solfire:/root>