emerge dev-qt/qtgui-5.11.1 causes "undefined reference to `qt_version_tag'" error re-emerged qtcore - doesn't help. Tried with and w/o lto, gold. Reproducible: Always Steps to Reproduce: 1.emerge dev-qt/qtgui-5.11.1 2. 3. Actual Results: == cut == x86_64-pc-linux-gnu-g++ -O2 -pipe -fomit-frame-pointer -ftree-vectorize -march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192 -Wl,--no-undefined -Wl,--version-script,QtGui.version -Wl,--enable-new-dtags -shared -Wl,-Bsymbolic-functions -Wl,--dynamic-list,/var/tmp/portage/dev-qt/qtgui-5.11.1/work/qtbase-everywhere-src-5.11.1/src/gui/QtGui.dynlist -Wl,-soname,libQt5Gui.so.5 -o libQt5Gui.so.5.11.1 .obj/qimage_sse4.o .obj/qdrawhelper_sse4.o .obj/qimagescale_sse4.o .obj/qimage_avx2.o .obj/qdrawhelper_avx2.o .obj/qaccessible.o .obj/qaccessiblecache.o .obj/qaccessibleobject.o .obj/qaccessibleplugin.o .obj/qplatformaccessibility.o .obj/qaccessiblebridge.o .obj/qgenericpluginfactory.o .obj/qgenericplugin.o .obj/qwindowsysteminterface.o .obj/qplatforminputcontextfactory.o .obj/qplatforminputcontextplugin.o .obj/qplatforminputcontext.o .obj/qplatformintegration.o .obj/qplatformscreen.o .obj/qplatformintegrationfactory.o .obj/qplatformintegrationplugin.o .obj/qplatformtheme.o .obj/qplatformthemefactory.o .obj/qplatformthemeplugin.o .obj/qplatformwindow.o .obj/qplatformoffscreensurface.o .obj/qplatformcursor.o .obj/qplatformclipboard.o .obj/qplatformnativeinterface.o .obj/qsessionmanager.o .obj/qsurfaceformat.o .obj/qguiapplication.o .obj/qwindow.o .obj/qoffscreensurface.o .obj/qplatformsurface.o .obj/qsurface.o .obj/qclipboard.o .obj/qcursor.o .obj/qevent.o .obj/qinputmethod.o .obj/qinternalmimedata.o .obj/qkeysequence.o .obj/qkeymapper.o .obj/qpalette.o .obj/qguivariant.o .obj/qscreen.o .obj/qshortcutmap.o .obj/qstylehints.o .obj/qtouchdevice.o .obj/qplatformsharedgraphicscache.o .obj/qplatformdialoghelper.o .obj/qplatformservices.o .obj/qplatformsystemtrayicon.o .obj/qplatformsessionmanager.o .obj/qplatformmenu.o .obj/qpixelformat.o .obj/qpaintdevicewindow.o .obj/qrasterwindow.o .obj/qplatformgraphicsbuffer.o .obj/qplatformgraphicsbufferhelper.o .obj/qinputdevicemanager.o .obj/qhighdpiscaling.o .obj/qdnd.o .obj/qdrag.o .obj/qplatformdrag.o .obj/qshapedpixmapdndwindow.o .obj/qsimpledrag.o .obj/qplatformopenglcontext.o .obj/qopenglcontext.o .obj/qopenglwindow.o .obj/qbitmap.o .obj/qimage.o .obj/qimage_conversions.o .obj/qimageiohandler.o .obj/qimagereader.o .obj/qimagewriter.o .obj/qpaintengine_pic.o .obj/qpicture.o .obj/qpictureformatplugin.o .obj/qpixmap.o .obj/qpixmapcache.o .obj/qplatformpixmap.o .obj/qpixmap_raster.o .obj/qpixmap_blitter.o .obj/qimagepixmapcleanuphooks.o .obj/qicon.o .obj/qiconloader.o .obj/qiconengine.o .obj/qiconengineplugin.o .obj/qmovie.o .obj/qbmphandler.o .obj/qppmhandler.o .obj/qxbmhandler.o .obj/qxpmhandler.o .obj/qpnghandler.o .obj/qfont.o .obj/qfontengine.o .obj/qfontengineglyphcache.o .obj/qfontsubset.o .obj/qfontmetrics.o .obj/qfontdatabase.o .obj/qtextengine.o .obj/qtextlayout.o .obj/qtextformat.o .obj/qtextobject.o .obj/qtextoption.o .obj/qfragmentmap.o .obj/qtextdocument.o .obj/qtextdocument_p.o .obj/qtexthtmlparser.o .obj/qabstracttextdocumentlayout.o .obj/qtextdocumentlayout.o .obj/qtextcursor.o .obj/qtextdocumentfragment.o .obj/qtextimagehandler.o .obj/qtexttable.o .obj/qtextlist.o .obj/qtextdocumentwriter.o .obj/qsyntaxhighlighter.o .obj/qstatictext.o .obj/qrawfont.o .obj/qglyphrun.o .obj/qdistancefield.o .obj/qinputcontrol.o .obj/qfontengine_qpf2.o .obj/qplatformfontdatabase.o .obj/qharfbuzzng.o .obj/qtextodfwriter.o .obj/qzip.o .obj/qcssparser.o .obj/qbackingstore.o .obj/qbezier.o .obj/qblendfunctions.o .obj/qblittable.o .obj/qbrush.o .obj/qcolor.o .obj/qcolorprofile.o .obj/qcompositionfunctions.o .obj/qcosmeticstroker.o .obj/qdrawhelper.o .obj/qemulationpaintengine.o .obj/qgrayraster.o .obj/qimagescale.o .obj/qmatrix.o .obj/qmemrotate.o .obj/qoutlinemapper.o .obj/qpagedpaintdevice.o .obj/qpagelayout.o .obj/qpagesize.o .obj/qpaintdevice.o .obj/qpaintengine.o .obj/qpaintengineex.o .obj/qpaintengine_blitter.o .obj/qpaintengine_raster.o .obj/qpainter.o .obj/qpainterpath.o .obj/qpathclipper.o .obj/qpdf.o .obj/qpdfwriter.o .obj/qpen.o .obj/qpolygon.o .obj/qrasterizer.o .obj/qregion.o .obj/qstroker.o .obj/qtextureglyphcache.o .obj/qtransform.o .obj/qtriangulatingstroker.o .obj/qtriangulator.o .obj/qplatformbackingstore.o .obj/qpathsimplifier.o .obj/qcssutil.o .obj/qdesktopservices.o .obj/qvalidator.o .obj/qgridlayoutengine.o .obj/qabstractlayoutstyleinfo.o .obj/qlayoutpolicy.o .obj/qshaderformat.o .obj/qshadergenerator.o .obj/qshadergraph.o .obj/qshadergraphloader.o .obj/qshaderlanguage.o .obj/qshadernode.o .obj/qshadernodeport.o .obj/qshadernodesloader.o .obj/qgenericmatrix.o .obj/qmatrix4x4.o .obj/qquaternion.o .obj/qvector2d.o .obj/qvector3d.o .obj/qvector4d.o .obj/qopengl.o .obj/qopenglfunctions.o .obj/qopenglframebufferobject.o .obj/qopenglpaintdevice.o .obj/qopenglbuffer.o .obj/qopenglshaderprogram.o .obj/qopenglgradientcache.o .obj/qopengltexturecache.o .obj/qopenglengineshadermanager.o .obj/qopengl2pexvertexarray.o .obj/qopenglpaintengine.o .obj/qopenglcustomshaderstage.o .obj/qopengltextureglyphcache.o .obj/qopenglversionfunctions.o .obj/qopenglversionfunctionsfactory.o .obj/qopenglvertexarrayobject.o .obj/qopengldebug.o .obj/qopengltextureblitter.o .obj/qopengltexture.o .obj/qopengltexturehelper.o .obj/qopenglpixeltransferoptions.o .obj/qopenglprogrambinarycache.o .obj/qopenglfunctions_1_0.o .obj/qopenglfunctions_1_1.o .obj/qopenglfunctions_1_2.o .obj/qopenglfunctions_1_3.o .obj/qopenglfunctions_1_4.o .obj/qopenglfunctions_1_5.o .obj/qopenglfunctions_2_0.o .obj/qopenglfunctions_2_1.o .obj/qopenglfunctions_3_0.o .obj/qopenglfunctions_3_1.o .obj/qopenglfunctions_3_2_core.o .obj/qopenglfunctions_3_3_core.o .obj/qopenglfunctions_4_0_core.o .obj/qopenglfunctions_4_1_core.o .obj/qopenglfunctions_4_2_core.o .obj/qopenglfunctions_4_3_core.o .obj/qopenglfunctions_4_4_core.o .obj/qopenglfunctions_4_5_core.o .obj/qopenglfunctions_3_2_compatibility.o .obj/qopenglfunctions_3_3_compatibility.o .obj/qopenglfunctions_4_0_compatibility.o .obj/qopenglfunctions_4_1_compatibility.o .obj/qopenglfunctions_4_2_compatibility.o .obj/qopenglfunctions_4_3_compatibility.o .obj/qopenglfunctions_4_4_compatibility.o .obj/qopenglfunctions_4_5_compatibility.o .obj/qopengltimerquery.o .obj/qguivariantanimation.o .obj/qstandarditemmodel.o .obj/qimage_compat.o .obj/qimage_sse2.o .obj/qdrawhelper_sse2.o .obj/qimage_ssse3.o .obj/qdrawhelper_ssse3.o .obj/qrc_qpdf.o .obj/moc_qaccessible.o .obj/moc_qaccessiblecache_p.o .obj/moc_qaccessibleplugin.o .obj/moc_qaccessiblebridge.o .obj/moc_qgenericplugin.o .obj/moc_qplatforminputcontext.o .obj/moc_qplatforminputcontextplugin_p.o .obj/moc_qplatformintegrationplugin.o .obj/moc_qplatformthemeplugin.o .obj/moc_qplatformnativeinterface.o .obj/moc_qplatformmenu.o .obj/moc_qsurfaceformat.o .obj/moc_qoffscreensurface.o .obj/moc_qclipboard.o .obj/moc_qevent.o .obj/moc_qinternalmimedata_p.o .obj/moc_qkeysequence.o .obj/moc_qkeymapper_p.o .obj/moc_qpalette.o .obj/moc_qsessionmanager.o .obj/moc_qscreen.o .obj/moc_qstylehints.o .obj/moc_qtouchdevice.o .obj/moc_qplatformsharedgraphicscache.o .obj/moc_qplatformdialoghelper.o .obj/moc_qpaintdevicewindow.o .obj/moc_qrasterwindow.o .obj/moc_qplatformgraphicsbuffer.o .obj/moc_qinputdevicemanager_p.o .obj/moc_qdnd_p.o .obj/moc_qdrag.o .obj/moc_qshapedpixmapdndwindow_p.o .obj/moc_qopenglwindow.o .obj/moc_qimageiohandler.o .obj/moc_qpictureformatplugin.o .obj/moc_qiconengineplugin.o .obj/moc_qfont.o .obj/moc_qfontdatabase.o .obj/moc_qtextformat.o .obj/moc_qtextobject.o .obj/moc_qtextdocument.o .obj/moc_qtextimagehandler_p.o .obj/moc_qtexttable.o .obj/moc_qtextlist.o .obj/moc_qinputcontrol_p.o .obj/moc_qbrush.o .obj/moc_qpainter.o .obj/moc_qpdfwriter.o .obj/moc_qplatformbackingstore.o .obj/moc_qvalidator.o .obj/moc_qshaderlanguage_p.o .obj/moc_qopenglshaderprogram.o .obj/moc_qopenglengineshadermanager_p.o .obj/moc_qopengltexture.o .obj/moc_qopengltimerquery.o -lQt5Core -lpthread -lGL -lpng16 -lharfbuzz -lz /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: .obj/qimage_sse4.o:(.qtversion[qt_version_tag]+0x0): undefined reference to `qt_version_tag' collect2: error: ld returned 1 exit status make: *** [Makefile:1270: ../../lib/libQt5Gui.so.5.11.1] Error 1 * ERROR: dev-qt/qtgui-5.11.1::gentoo failed (compile phase): * emake failed Portage 2.3.51 (python 3.6.6-final-0, default/linux/amd64/17.0, gcc-8.2.0, glibc-2.27-r6, 4.18.14-gentoo_intel x86_64) ================================================================= System uname: Linux-4.18.14-gentoo_intel-x86_64-Intel-R-_Core-TM-_i7-2860QM_CPU_@_2.50GHz-with-gentoo-2.6 KiB Mem: 16212872 total, 10749080 free KiB Swap: 15625212 total, 15625212 free Timestamp of repository gentoo: Sun, 14 Oct 2018 00:45:01 +0000 sh bash 4.4_p23 ld GNU ld (Gentoo 2.31.1 p3) 2.31.1 distcc 3.2rc1 x86_64-pc-linux-gnu [disabled] ccache version 3.4.3 [disabled] app-shells/bash: 4.4_p23::gentoo dev-java/java-config: 2.2.0-r4::gentoo dev-lang/perl: 5.26.2::gentoo dev-lang/python: 2.7.15::gentoo, 3.6.6::gentoo dev-util/ccache: 3.4.3::gentoo dev-util/cmake: 3.12.3::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/openrc: 0.38.2::gentoo sys-apps/sandbox: 2.13::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.16.1-r1::gentoo sys-devel/binutils: 2.31.1-r1::gentoo sys-devel/gcc: 8.2.0-r3::gentoo sys-devel/gcc-config: 2.0::gentoo sys-devel/libtool: 2.4.6-r5::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.27-r6::gentoo Repositories: gentoo location: /usr/portage sync-type: webrsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 paz00 location: /usr/local/paz00 masters: gentoo priority: 10 palemoon location: /var/lib/layman/palemoon sync-type: laymansync sync-uri: https://github.com/deu/palemoon-overlay.git masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -flto=8 -fuse-ld=gold -fomit-frame-pointer -ftree-vectorize -march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/gnupg/qualified.txt /var/lib/i2pd/certificates" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -flto=8 -fuse-ld=gold -fomit-frame-pointer -ftree-vectorize -march=sandybridge -mtune=sandybridge -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -maes -mpclmul -mpopcnt -mavx -msse4.2 -msse4.1 -mfxsr -mxsave -mxsaveopt --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=8192" DISTDIR="/usr/portage/distfiles" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs candy cgroup config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news nodoc noinfo noman parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/ ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo http://ftp.romnet.org/gentoo/ http://gentoo.supp.name/ http://tux.rainside.sk/gentoo/" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en ru ua" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="#chromium #graphite #link X a aac acl acpi adjust alsa amd64 avx based bash-completion berkdb branding break, bzip2 cairo can check cli consolekit crypt custom-cflags custom-optimization cxx dbus dri dri3 ffmpeg fortran gallium gdbm gif glamor gnome-keyring graphite gstreamer gtk gtk3 https://forums.gentoo.org/viewtopic-t-1074724.html, iconv icu intermediate jemalloc jit jpeg jpeg2k jumbo-build jumbo_file_merge_limit libnotify libsamplerate libtirpc llvm lm_sensors lock loop lto lzma lzo make matroska mime mmx mmxext mng mp3 mp4 multilib ncurses networkmanager nls nptl ntp on opengl openmp optimization optimizations pam pclmul pcre png policykit polyhedral popcnt rdesktop readline representation seccomp session shenandoah sndfile socks5 sound speedup, sqlite sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 startup-notification svg system-bzip2 system-ffmpeg system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-libwebp system-lua system-sqlite system-zlib tcpd theora threads thunar tiff time truetype udev udisks unicode upower usb uvm v4l vaapi vdpau vorbis vpx vulkan webp wifi wmf x264 xa xattr xcb xpm xscreensaver xvid xvmc zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon plan sheets stage words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext pclmul popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev synaptics" KERNEL="linux" L10N="en ru ua" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-1" POSTGRES_TARGETS="postgres9_5 postgres10" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" QEMU_SOFTMMU_TARGETS="arm" QEMU_USER_TARGETS="arm" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="intel i965" XFCE_PLUGINS="brightness clock power trash" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Thank you for the report. Please recompile and *attach* the logfiles as described on https://wiki.gentoo.org/wiki/Attach_the_logs_to_the_bug_ticket The logs must be part of the ticket, but not on external websites. We need to have all information at hand before ticket assignment, so that the maintainer can look after it in one session with minimal number of callbacks. Please reopen this ticket (Status:unconfirmed) afterwards.
Fixed via recompiling dev-qt/qtcore w/o lto flag.
I mean i recompiled qtcore without -flto flag before you submitted my bug, and this solved issue. I think qtcore authors should mark this "qt_version_tag" as not removable for LTO optimization.
*** This bug has been marked as a duplicate of bug 674382 ***
