Strange symbol lookup errors since upgrade gcc to 4

[trakon88]

Hello,

don't know if this is right here ... since I upgraded to gcc 4 I have strange problems with applications depending on libqt. This example is for myttv (I had similar issues with amarok ...)

Edit: I first had this problem, but this seems to be solved:https://forums.gentoo.org/viewtopic-t-495756-highlight-symbol+lookup+error.htm
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I start mythfrontend as a normal user (it also happens with mythbackend as root) and get:

alex@cube ~ $ mythfrontend
mythfrontend: symbol lookup error: /usr/lib/libmyth-0.20.so.0: undefined symbol: _ZN9QGroupBox10setEnabledEb
but,
when I do a: source /etc/profile && mythfrontend it works ... this is kind off a solution but a little bit annoying and - strange, isn't it?
Can somebody tell me what's going on?
Oh yes I'm shure it's since I upgraded gcc AND I DID FOLLOW THE UPGRADE-GUIDE ...
any help appreciated

greetings alex

P.S.
I also get this with Opera:
alex@cube ~ $ opera
/opt/opera/lib/opera/9.02-20060919.6/opera: Symbol `_ZTI11QDragObject' has different size in shared object, consider re-linking
/opt/opera/lib/opera/9.02-20060919.6/opera: Symbol `_ZTI10QPopupMenu' has different size in shared object, consider re-linking
/opt/opera/lib/opera/9.02-20060919.6/opera: Symbol `_ZTI7QPixmap' has different size in shared object, consider re-linking
/opt/opera/lib/opera/9.02-20060919.6/opera: Symbol `_ZTI7QWidget' has different size in shared object, consider re-linking
/opt/opera/lib/opera/9.02-20060919.6/opera: symbol lookup error: /opt/opera/lib/opera/9.02-20060919.6/opera: undefined symbol: _ZN7QWidget21setInputMethodEnabledEb
this:
alex@cube ~ $ source /etc/profile
alex@cube ~ $ opera
works ...

[trakon88]

*bump* and further investigations
I found out the following:
when I do:
cube alex # env
MANPATH=/usr/local/share/man:/usr/share/man:/usr/share/binutils-data/i686-pc-linux-gnu/2.16.1/man:/usr/share/gcc-data/i686-pc-linux-gnu/4.1.1/man:/opt/blackdown-jdk-1.4.2.03/man:/etc/java-config/system-vm/man/:/usr/qt/3/doc/man
KDE_MULTIHEAD=false
DM_CONTROL=/var/run/xdmctl
LINGUAS=de
SHELL=/bin/bash
TERM=xterm
XDM_MANAGED=/var/run/xdmctl/xdmctl-:0,maysd,mayfn,sched,rsvd,method=classic
GTK2_RC_FILES=/etc/gtk-2.0/gtkrc:/home/alex/.gtkrc-2.0:/home/alex/.kde3.5/share/config/gtkrc-2.0
GS_LIB=/home/alex/.fonts
GTK_RC_FILES=/etc/gtk/gtkrc:/home/alex/.gtkrc:/home/alex/.kde3.5/share/config/gtkrc
WINDOWID=35651591
QTDIR=/usr/qt/3
KDE_FULL_SESSION=true
LC_ALL=de_DE.utf8
ANT_HOME=/usr/share/ant-core
USER=root
PRELINK_PATH_MASK=/usr/lib/gstreamer-0.10:/usr/lib/gstreamer-0.8:/usr/lib/klibc
LS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.qt=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.pdf=00;32:*.ps=00;32:*.txt=00;32:*.patch=00;32:*.diff=00;32:*.log=00;32:*.tex=00;32:*.doc=00;32:*.flac=01;35:*.mp3=01;35:*.mpc=00;36:*.ogg=00;36:*.wav=00;36:*.mid=00;36:*.midi=00;36:*.au=00;36:*.flac=00;36:*.aac=00;36:
GDK_USE_XFT=1
SESSION_MANAGER=local/cube:/tmp/.ICE-unix/19992
CONFIG_PROTECT_MASK=/etc/java-config/vms/ /etc/env.d/java/ /etc/gconf /etc/terminfo /etc/revdep-rebuild /etc/splash
VMHANDLE=blackdown-jdk-1.4.2
PAGER=/usr/bin/less
XDG_CONFIG_DIRS=/usr/kde/3.5/etc/xdg
FLTK_DOCDIR=/usr/share/doc/fltk-1.1.7/html
KONSOLE_DCOP=DCOPRef(konsole-20031,konsole)
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DESKTOP_SESSION=kde-3.5
PWD=/home/alex
KONSOLE_DCOP_SESSION=DCOPRef(konsole-20031,session-5)
JAVA_HOME=/etc/java-config-2/current-system-vm
GENERATION=2
JAVAC=/etc/java-config-2/current-system-vm/bin/javac
EDITOR=/bin/nano
KDEDIRS=/usr/kde/3.5:/usr:/usr/local
QMAKESPEC=linux-g++
HOME=/root
SHLVL=3
JDK_HOME=/etc/java-config-2/current-system-vm
XCURSOR_THEME=gentoo-blue
LOGNAME=root
PYTHONPATH=/usr/lib/portage/pym
LESS=-R -M --shift 5
G_FILENAME_ENCODING=UTF-8
CVS_RSH=ssh
GCC_SPECS=
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-AM3EckKBs1,guid=474833457d1cc077e16c75a21e648f00
XDG_DATA_DIRS=/usr/kde/3.5/share:/usr/share
CLASSPATH=.
PKG_CONFIG_PATH=/usr/qt/3/lib/pkgconfig
LESSOPEN=|lesspipe.sh %s
INFOPATH=/usr/share/info:/usr/share/binutils-data/i686-pc-linux-gnu/2.16.1/info:/usr/share/gcc-data/i686-pc-linux-gnu/4.1.1/info:/usr/share/info/emacs-21
DISPLAY=:0
LADSPA_PATH=/usr/lib/ladspa
USB_DEVFS_PATH=/dev/bus/usb
OPENGL_PROFILE=nvidia
SANE_CONFIG_DIR=/etc/sane.d
CONFIG_PROTECT=/usr/share/X11/xkb /usr/kde/3.5/share/config /usr/kde/3.5/env /usr/kde/3.5/shutdown /usr/share/config /usr/kde/3.5/share/config /usr/kde/3.5/env /usr/kde/3.5/shutdown /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/xdvi/ /var/spool/fax/etc /usr/lib/fax
G_BROKEN_FILENAMES=1
XAUTHORITY=/root/.xauthACe7Kk
COLORTERM=
_=/bin/env
so LD_LIBRARY_PATH is not set - after:
cube alex # source /etc/profile
cube alex # env | grep LD
LD_LIBRARY_PATH=/usr/qt/3/lib
it is set
the question: what do I have to do to set it properly, or permanent
PLEASE HELP!!

[desultory]

Were the commands cited above executed on a tty or in a terminal emulator? I ask because each would indicate different problems, as in a tty the shell would likely be a login shell whereas in an emulator it would likely not be.

If running the commands from a terminal emulator, one fix would be to simply add . /etc/profile to ~/.bashrc to configure all interactive bash sessions in the same fashion as login bash sessions.

[rwf]

Most strange.

What does your /etc/ld.so.conf look like?

cat /etc/ld.so.conf
# ld.so.conf autogenerated by env-update; make all changes to
# contents of /etc/env.d directory
/usr/local/lib
//usr//lib/opengl/xorg-x11/lib
/usr/i686-pc-linux-gnu/lib
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1
/usr/lib/gcc/i686-pc-linux-gnu/3.4.6
/usr/lib/nspr
/usr/lib/nss
/usr/lib
/usr/lib/lesstif-2.1
/opt/sun-jdk-1.4.2.10/jre/lib/i686/
/opt/sun-jdk-1.4.2.10/jre/lib/i686/native_threads/
/opt/sun-jdk-1.4.2.10/jre/lib/i686/client/
/opt/sun-jdk-1.4.2.10/jre/lib/i686/server/
/usr/qt/3/lib
/usr/lib/libstdc++-v3/

Note the presence of /usr/qt/3/lib. I don't run KDE so I don't have an issue with qt 3 versus qt 4.

The undefined symbols are clearly in libqt-mt.so (really libqt-mt.so.3)

objdump -T /usr/qt/3/lib/libqt-mt.so | grep _ZTI11QDragObject
006bbee0 w DO .data.rel.ro 00000020 Base _ZTI11QDragObject

Confused.

[trakon88]

hi,

my ld.so.conf looks like yours:

# ld.so.conf autogenerated by env-update; make all changes to
# contents of /etc/env.d directory
/usr/local/lib
//usr//lib/opengl/nvidia/lib
/usr/i686-pc-linux-gnu/lib
/usr/lib/gcc/i686-pc-linux-gnu/4.1.1
/usr/lib/nspr
/usr/lib/nss
/usr/lib
/usr/lib/seamonkey
/usr/lib/openmotif-2.2
/opt/blackdown-jdk-1.4.2.03/jre/lib/i386/
/opt/blackdown-jdk-1.4.2.03/jre/lib/i386/native_threads/
/opt/blackdown-jdk-1.4.2.03/jre/lib/i386/classic/
/opt/blackdown-jdk-1.4.2.03/jre/lib/i386/server/
/opt/Qtopia/lib
/usr/lib/qt4
/usr/kde/3.5/lib
/usr/qt/3/lib
/usr/kde/3.5/lib
/usr/games/lib
/usr/lib/fltk-1.1
/usr/lib/libstdc++-v3/

I do not understand this, in the moment mythtv and opera are the only applications making this problem ... do you have any suggestions?
alex

[rwf]

The symbol lookup error: for _ZN7QWidget21setInputMethodEnabledEb is most strange since this symbol is in /usr/qt/3/lib/libqt-mt.so.3

Do you you have more than one libqt-mt.so.3 on your system? Is there one in /usr/lib/qt4/ ?

Does ldd opera show libqt-mt.so.3 => /usr/qt/3/lib/libqt-mt.so.3 0xb77ff000)

[trakon88]

I did a little bit testing:

cube ~ # ldd /usr/bin/opera
not a dynamic executable
cube ~ # ldd /usr/bin/mythfrontend
linux-gate.so.1 => (0xffffe000)
libmythtv-0.20.so.0 => /usr/lib/libmythtv-0.20.so.0 (0xb73d0000)
libmythavformat-0.20.so.0 => /usr/lib/libmythavformat-0.20.so.0 (0xb734e000)
libmythavutil-0.20.so.0 => /usr/lib/libmythavutil-0.20.so.0 (0xb7348000)
libmythavcodec-0.20.so.0 => /usr/lib/libmythavcodec-0.20.so.0 (0xb6ee1000)
libmythfreemheg-0.20.so.0 => /usr/lib/libmythfreemheg-0.20.so.0 (0xb6e62000)
libmythupnp-0.20.so.0 => /usr/lib/libmythupnp-0.20.so.0 (0xb6e08000)
libmythlivemedia-0.20.so.0 => /usr/lib/libmythlivemedia-0.20.so.0 (0xb6e06000)
libmyth-0.20.so.0 => /usr/lib/libmyth-0.20.so.0 (0xb6b33000)
libmythui-0.20.so.0 => /usr/lib/libmythui-0.20.so.0 (0xb6a90000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb6a0e000)
libmp3lame.so.0 => /usr/lib/libmp3lame.so.0 (0xb696d000)
libasound.so.2 => /usr/lib/libasound.so.2 (0xb68ad000)
libjack.so.0 => /usr/lib/libjack.so.0 (0xb6895000)
libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0xb6892000)
libXv.so.1 => /usr/lib/libXv.so.1 (0xb688d000)
libXxf86vm.so.1 => /usr/lib/libXxf86vm.so.1 (0xb6887000)
libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0xb6882000)
libqt-mt.so.3 => /usr/qt/3/lib/libqt-mt.so.3 (0xb5f2e000)
libGLU.so.1 => /usr/lib/libGLU.so.1 (0xb5eab000)
libGL.so.1 => //usr//lib/opengl/nvidia/lib/libGL.so.1 (0xb5e26000)
libXmu.so.6 => /usr/lib/libXmu.so.6 (0xb5e10000)
libXext.so.6 => /usr/lib/libXext.so.6 (0xb5dff000)
libX11.so.6 => /usr/lib/libX11.so.6 (0xb5cfd000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb5cea000)
libstdc++.so.6 => /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6 (0xb5c09000)
libm.so.6 => /lib/libm.so.6 (0xb5be4000)
libgcc_s.so.1 => /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libgcc_s.so.1 (0xb5bd9000)
libc.so.6 => /lib/libc.so.6 (0xb5abb000)
libz.so.1 => /lib/libz.so.1 (0xb5aa8000)
libdts.so.0 => /usr/lib/libdts.so.0 (0xb5a85000)
libdl.so.2 => /lib/libdl.so.2 (0xb5a81000)
libXrender.so.1 => /usr/lib/libXrender.so.1 (0xb5a78000)
libmng.so.1 => /usr/lib/libmng.so.1 (0xb5a18000)
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0xb59f2000)
libpng12.so.0 => /usr/lib/libpng12.so.0 (0xb59cd000)
libXi.so.6 => /usr/lib/libXi.so.6 (0xb59c5000)
libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0xb59bb000)
libXft.so.2 => /usr/lib/libXft.so.2 (0xb59a5000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0xb5971000)
libSM.so.6 => /usr/lib/libSM.so.6 (0xb5968000)
libICE.so.6 => /usr/lib/libICE.so.6 (0xb5950000)
libGLcore.so.1 => //usr//lib/opengl/nvidia/lib/libGLcore.so.1 (0xb518d000)
libnvidia-tls.so.1 => //usr//lib/opengl/nvidia/lib/libnvidia-tls.so.1 (0xb518a000)
libXt.so.6 => /usr/lib/libXt.so.6 (0xb5133000)
libXau.so.6 => /usr/lib/libXau.so.6 (0xb5130000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb512b000)
/lib/ld-linux.so.2 (0xb7f07000)
libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0xb5126000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0xb5106000)

libqt-mt.so.3 is missing as you can see
then:
cube ~ # locate libqt-mt.so.3
/opt/Qtopia/lib/libqt-mt.so.3
/opt/Qtopia/lib/libqt-mt.so.3.1
/opt/Qtopia/lib/libqt-mt.so.3.1.2
/usr/qt/3/lib/libqt-mt.so.3.3.6
/usr/qt/3/lib/libqt-mt.so.3.3
/usr/qt/3/lib/libqt-mt.so.3
two versions, but I have the same setup on my notebook, that I didn't upgrade to gcc4 there everything works ... and the ldd stuff shows libqt-mt.so.3