I noticed sound wasn't working after I restarted my computer and checked pulseaudio and its saying "pulseaudio: symbol lookup error: /usr/lib64/libltdl.so.7: undefined symbol: lt_libltdl_LTX_preloaded_symbols" which is apparently a fairly common libtool error. And since libtool was updated today I was wondering if this is because of it.
Output of emerge --info Portage 2.2.15 (python 2.7.9-final-0, default/linux/amd64/13.0/desktop, gcc-4.9.2, glibc-2.20, 3.18.0-gentoo x86_64) ================================================================= System uname: Linux-3.18.0-gentoo-x86_64-Intel-R-_Core-TM-_i7-3630QM_CPU_@_2.40GHz-with-gentoo-2.2 KiB Mem: 16320832 total, 14201072 free KiB Swap: 0 total, 0 free Timestamp of tree: Tue, 16 Dec 2014 01:00:01 +0000 sh bash 4.3_p30-r1 ld GNU gold (Gentoo 2.24 p1.4 2.24) 1.11 app-shells/bash: 4.3_p30-r1 dev-java/java-config: 2.2.0 dev-lang/perl: 5.20.1-r3 dev-lang/python: 2.7.9, 3.4.2 dev-util/cmake: 3.0.2 dev-util/pkgconfig: 0.28-r2 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.13.6 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.69 sys-devel/automake: 1.10.3-r1, 1.11.6-r1, 1.13.4, 1.14.1 sys-devel/binutils: 2.24-r3 sys-devel/gcc: 4.9.2 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.4 sys-devel/make: 4.1-r1 sys-kernel/linux-headers: 3.17-r1 (virtual/os-headers) sys-libs/glibc: 2.20 Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 causelay location: /var/lib/layman/causelay masters: gentoo priority: 0 steam-overlay location: /var/lib/layman/steam masters: gentoo priority: 1 ABI="amd64" ABI_X86="64" ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" ACCEPT_PROPERTIES="*" ACCEPT_RESTRICT="*" 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" ARCH="amd64" AUTOCLEAN="yes" BOOTSTRAP_USE="cxx unicode internal-glib python_targets_python3_3 python_targets_python2_7 multilib" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -mtune=native -O2 -pipe -flto=9 -floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block -ftree-vectorize" CFLAGS_amd64="-m64" CFLAGS_x32="-mx32" CFLAGS_x86="-m32" CHOST="x86_64-pc-linux-gnu" CHOST_amd64="x86_64-pc-linux-gnu" CHOST_x32="x86_64-pc-linux-gnux32" CHOST_x86="i686-pc-linux-gnu" CLEAN_DELAY="5" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" COLLISION_IGNORE="/lib/modules/* *.py[co] *$py.class */dropin.cache" COLORTERM="gnome-terminal" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -mtune=native -O2 -pipe -flto=9 -floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block -ftree-vectorize" DBUS_SESSION_BUS_ADDRESS="unix:abstract=/tmp/dbus-2UAoXTztxd,guid=e387bb27b8160701a5fee5bb548f9a68" DEFAULT_ABI="amd64" DESKTOP_SESSION="i3" DISABLED=" " DISPLAY=":0" DISTDIR="/usr/portage/distfiles" EDITOR="/bin/nano" ELIBC="glibc" EMERGE_DEFAULT_OPTS="--ask --verbose" EMERGE_WARNING_DELAY="10" ENABLED=" /var/lib/layman/causelay /var/lib/layman/steam " EPREFIX="" EROOT="/" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FETCHCOMMAND="wget -t 3 -T 60 --passive-ftp -O "${DISTDIR}/${FILE}" "${URI}"" FETCHCOMMAND_RSYNC="rsync -avP "${URI}" "${DISTDIR}/${FILE}"" FETCHCOMMAND_SFTP="bash -c "x=\${2#sftp://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port=22 ; eval \"declare -a ssh_opts=(\${3})\" ; exec sftp -P \${port} \"\${ssh_opts[@]}\" \"\${host}:/\${x#*/}\" \"\$1\"" sftp "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}"" FETCHCOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port=22 ; exec rsync --rsh=\"ssh -p\${port} \${3}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}"" FFLAGS="-O2 -pipe" GCC_SPECS="" GDMSESSION="i3" GDM_LANG="en_US.utf8" GENTOO_MIRRORS="http://distfiles.gentoo.org" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRAPHITE="-floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block" GREP_COLOR="1;32" GRUB_PLATFORMS="" GSETTINGS_BACKEND="gconf" GUILE_LOAD_PATH="/usr/share/guile/1.8" HOME="/home/tgsb" INFOPATH="/usr/share/info:/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.2/info:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.24/info" INPUT_DEVICES="evdev synaptics" IUSE_IMPLICIT="abi_x86_64 prefix prefix-guest" JAVAC="/home/tgsb/.gentoo/java-config-2/current-user-vm/bin/javac" JAVA_HOME="/home/tgsb/.gentoo/java-config-2/current-user-vm" JDK_HOME="/home/tgsb/.gentoo/java-config-2/current-user-vm" KERNEL="linux" LANG="en_US.utf8" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LC_CTYPE="en_US.utf8" LC_MESSAGES="C" LDFLAGS="-march=native -mtune=native -O2 -pipe -flto=9 -floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block -ftree-vectorize -fuse-linker-plugin" LDFLAGS_amd64="-m elf_x86_64" LDFLAGS_x32="-m elf32_x86_64" LDFLAGS_x86="-m elf_i386" LESS="-R" LESSOPEN="|lesspipe %s" LIBDIR_amd64="lib64" LIBDIR_amd64_fbsd="lib64" LIBDIR_arm="lib" LIBDIR_arm64="lib64" LIBDIR_n32="lib32" LIBDIR_n64="lib64" LIBDIR_o32="lib" LIBDIR_ppc="lib32" LIBDIR_ppc64="lib64" LIBDIR_s390="lib32" LIBDIR_s390x="lib64" LIBDIR_sparc32="lib32" LIBDIR_sparc64="lib64" LIBDIR_x32="libx32" LIBDIR_x86="lib32" LIBDIR_x86_fbsd="lib32" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_US" LOGNAME="tgsb" LSCOLORS="Gxfxcxdxbxegedabagacad" MAIL="/var/mail/tgsb" MAKEOPTS="-j9" MANPATH="/home/tgsb/.gentoo/java-config-2/current-user-vm/man:/usr/local/share/man:/usr/share/man:/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.2/man:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.24/man:/etc/java-config-2/current-system-vm/man/" MULTILIB_ABIS="amd64 x86" MULTILIB_STRICT_DENY="64-bit.*shared object" MULTILIB_STRICT_DIRS="/lib32 /lib /usr/lib32 /usr/lib /usr/kde/*/lib32 /usr/kde/*/lib /usr/qt/*/lib32 /usr/qt/*/lib /usr/X11R6/lib32 /usr/X11R6/lib" MULTILIB_STRICT_EXEMPT="(perl5|gcc|gcc-lib|binutils|eclipse-3|debug|portage|udev|systemd|clang|python-exec)" NETBEANS="apisupport cnd groovy gsf harness ide identity j2ee java mobility nb php profiler soa visualweb webcommon websvccommon xml" OFFICE_IMPLEMENTATION="libreoffice" OLDPWD="/home/tgsb" OPENCL_PROFILE="nvidia" OPENGL_PROFILE="xorg-x11" PAGER="less" PATH="/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.3" PHP_TARGETS="php5-5" PKGDIR="/usr/portage/packages" PORTAGE_ARCHLIST="ppc sparc64-freebsd ppc-openbsd x86-openbsd ppc64 x86-winnt x86-fbsd ppc-aix alpha arm x86-freebsd s390 amd64 arm-linux x86-macos x64-openbsd ia64-hpux hppa x86-netbsd ppc64-linux x86-cygwin amd64-linux ia64-linux x86 sparc-solaris x64-freebsd sparc64-solaris x86-linux x64-macos sparc m68k-mint ia64 mips ppc-macos x86-interix hppa-hpux amd64-fbsd x64-solaris m68k sh arm64 x86-solaris sparc-fbsd" PORTAGE_BIN_PATH="/usr/lib/portage/python2.7" PORTAGE_COMPRESS_EXCLUDE_SUFFIXES="css gif htm[l]? jp[e]?g js pdf png" PORTAGE_CONFIGROOT="/" PORTAGE_DEBUG="0" PORTAGE_DEPCACHEDIR="/var/cache/edb/dep" PORTAGE_ELOG_CLASSES="log warn error" PORTAGE_ELOG_MAILFROM="portage@localhost" PORTAGE_ELOG_MAILSUBJECT="[portage] ebuild log for ${PACKAGE} on ${HOST}" PORTAGE_ELOG_MAILURI="root" PORTAGE_ELOG_SYSTEM="save_summary:log,warn,error,qa echo" PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS="5" PORTAGE_FETCH_RESUME_MIN_SIZE="350K" PORTAGE_GID="250" PORTAGE_GPG_SIGNING_COMMAND="gpg --sign --digest-algo SHA256 --clearsign --yes --default-key "${PORTAGE_GPG_KEY}" --homedir "${PORTAGE_GPG_DIR}" "${FILE}"" PORTAGE_INST_GID="0" PORTAGE_INST_UID="0" PORTAGE_INTERNAL_CALLER="1" PORTAGE_OVERRIDE_EPREFIX="" PORTAGE_PYM_PATH="/usr/lib64/python2.7/site-packages" PORTAGE_PYTHONPATH="/usr/lib64/python2.7/site-packages" PORTAGE_REPOSITORIES="[DEFAULT] main-repo = gentoo [causelay] location = /var/lib/layman/causelay masters = gentoo priority = 0 [gentoo] location = /usr/portage masters = priority = -1000 sync-type = rsync sync-uri = rsync://rsync.gentoo.org/gentoo-portage [steam-overlay] location = /var/lib/layman/steam masters = gentoo priority = 1 " 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" PORTAGE_RSYNC_RETRIES="-1" PORTAGE_SYNC_STALE="30" PORTAGE_TMPDIR="/var/tmp" PORTAGE_VERBOSE="1" PORTAGE_WORKDIR_MODE="0700" PORTAGE_XATTR_EXCLUDE="btrfs.* security.* system.nfs4_acl" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/causelay /var/lib/layman/steam" PORT_LOGDIR_CLEAN="find "${PORT_LOGDIR}" -type f ! -name "summary.log*" -mtime +7 -delete" PRELINK_PATH_MASK="/usr/lib64/libfreebl3.so:/usr/lib64/libnssdbm3.so:/usr/lib64/libsoftokn3.so:/opt/bin/skype" PROFILE_ONLY_VARIABLES="ARCH ELIBC IUSE_IMPLICIT KERNEL USERLAND USE_EXPAND_IMPLICIT USE_EXPAND_UNPREFIXED USE_EXPAND_VALUES_ARCH USE_EXPAND_VALUES_ELIBC USE_EXPAND_VALUES_KERNEL USE_EXPAND_VALUES_USERLAND" PWD="/home/tgsb" PYTHONDONTWRITEBYTECODE="1" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" QT_GRAPHICSSYSTEM="raster" RESUMECOMMAND="wget -c -t 3 -T 60 --passive-ftp -O "${DISTDIR}/${FILE}" "${URI}"" RESUMECOMMAND_RSYNC="rsync -avP "${URI}" "${DISTDIR}/${FILE}"" RESUMECOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port=22 ; exec rsync --rsh=\"ssh -p\${port} \${3}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}"" ROOT="/" ROOTPATH="/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.9.2" RPMDIR="/usr/portage/rpm" RUBY_TARGETS="ruby19 ruby20" SHELL="/bin/zsh" SHLVL="4" SYMLINK_LIB="yes" SYNC="rsync.us.gentoo.org/gentoo-portage" TERM="xterm" TERMINATOR_UUID="urn:uuid:b874caef-b773-4350-a282-294aa710b1e5" UNINSTALL_IGNORE="/lib/modules/*" USE="X a52 aac acl acpi alsa amd64 berkdb bluetooth branding btrfs bzip2 cairo cdda cdr cli cracklib crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac fortran gbm gdbm gif glamor gpm graphite gtk gtkstyle iconv icu ipv6 jpeg lcms ldap libkms libnotify lto mad mmx mng modules mp3 mp4 mpeg multilib ncurses nls nptl ntfs ogg opengl openmp pam pango pcre pdf pgo png policykit ppds pulseaudio qt3support qt4 readline sdl session spell sse sse2 sse3 sse4 ssl ssse3 startup-notification svg systemd tcpd tiff truetype udev udisks unicode upower usb va vaapi vorbis wxwidgets x264 xcb xml xv xvid 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="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_US" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="intel i965 nvidia" 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" USER="tgsb" USERLAND="GNU" USE_EXPAND="ABI_MIPS ABI_PPC ABI_S390 ABI_X86 ALSA_CARDS APACHE2_MODULES APACHE2_MPMS CALLIGRA_FEATURES CAMERAS COLLECTD_PLUGINS CROSSCOMPILE_OPTS CURL_SSL DRACUT_MODULES DVB_CARDS ELIBC ENLIGHTENMENT_MODULES FCDSL_CARDS FFTOOLS FOO2ZJS_DEVICES FRITZCAPI_CARDS GPSD_PROTOCOLS GRUB_PLATFORMS INPUT_DEVICES KERNEL LCD_DEVICES LIBREOFFICE_EXTENSIONS LINGUAS LIRC_DEVICES MONKEYD_PLUGINS NETBEANS_MODULES NGINX_MODULES_HTTP NGINX_MODULES_MAIL OFED_DRIVERS OFFICE_IMPLEMENTATION OPENMPI_FABRICS OPENMPI_OFED_FEATURES OPENMPI_RM PHP_TARGETS PYTHON_SINGLE_TARGET PYTHON_TARGETS QEMU_SOFTMMU_TARGETS QEMU_USER_TARGETS RUBY_TARGETS SANE_BACKENDS USERLAND UWSGI_PLUGINS VIDEO_CARDS VOICEMAIL_STORAGE XFCE_PLUGINS XTABLES_ADDONS" USE_EXPAND_HIDDEN="ABI_MIPS ABI_PPC ABI_S390 CROSSCOMPILE_OPTS ELIBC KERNEL USERLAND" USE_EXPAND_IMPLICIT="ARCH ELIBC KERNEL USERLAND" USE_EXPAND_UNPREFIXED="ARCH" USE_EXPAND_VALUES_ARCH="alpha amd64 amd64-fbsd amd64-linux arm arm-linux arm64 hppa hppa-hpux ia64 ia64-hpux ia64-linux m68k m68k-mint mips ppc ppc64 ppc64-linux ppc-aix ppc-macos ppc-openbsd s390 sh sparc sparc64-freebsd sparc64-solaris sparc-fbsd sparc-solaris x64-freebsd x64-macos x64-openbsd x64-solaris x86 x86-cygwin x86-fbsd x86-freebsd x86-interix x86-linux x86-macos x86-netbsd x86-openbsd x86-solaris x86-winnt" USE_EXPAND_VALUES_ELIBC="AIX Cygwin Darwin DragonFly FreeBSD glibc HPUX Interix mintlib musl NetBSD OpenBSD SunOS uclibc Winnt" USE_EXPAND_VALUES_KERNEL="AIX Cygwin Darwin FreeBSD freemint HPUX Interix linux NetBSD OpenBSD SunOS Winnt" USE_EXPAND_VALUES_USERLAND="BSD GNU" USE_ORDER="env:pkg:conf:defaults:pkginternal:repo:env.d" VGL_READBACK="pbo" VIDEO_CARDS="intel i965 nvidia" WINDOWID="25165828" XAUTHORITY="/home/tgsb/.Xauthority" XDG_CONFIG_DIRS="/etc/xdg" XDG_CURRENT_DESKTOP="i3" XDG_DATA_DIRS="/usr/local/share:/usr/share" XDG_GREETER_DATA_DIR="/var/lib/lightdm-data/tgsb" XDG_RUNTIME_DIR="/run/user/1000" XDG_SEAT="seat0" XDG_SEAT_PATH="/org/freedesktop/DisplayManager/Seat0" XDG_SESSION_DESKTOP="i3" XDG_SESSION_ID="c2" XDG_SESSION_PATH="/org/freedesktop/DisplayManager/Session0" XDG_SESSION_TYPE="x11" XDG_VTNR="7" XFCE_PLUGINS="" 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" ZSH="/home/tgsb/.oh-my-zsh" _="/usr/bin/emerge"
What is your libltdl version?
This happens if you compile libltdl with lto. I get the same error in chromium and a couple of other packages. Re-emerging libltdl with -fno-lto fixes the problem.
I observe the same as Valentin Marinov in comment #3. When building libltdl-2.4.5 with gcc-4.9.2 and LTO enabled, and unresolved symbol winds up in libltdl.so.7 . Disabling LTO and rebuilding libltdl avoids the issue. It would be nice if -flto* flags could be filtered in libltdl ebuild, as this is a non-obvious error that will show up on user boxes as build or runtime failures in other packages.
*** This bug has been marked as a duplicate of bug 842426 ***
