X lib errors

Posted on 1998-08-20
Medium Priority
Last Modified: 2013-12-15

I get lots of errors like the following when trying to compile the example KDE programs:

/usr/X11R6/lib/libXext.a(extutil.o): In function `XextAddDisplay':
extutil.o(.text+0x1e8): undefined reference to `_XLockMutex_fn'
extutil.o(.text+0x1f2): undefined reference to `_Xglobal_lock'
extutil.o(.text+0x20b): undefined reference to `_XUnlockMutex_fn'
extutil.o(.text+0x215): undefined reference to `_Xglobal_lock'

And, when trying to execute 'java' from the jdk1.1.6v2glibc, I get the following error:

/usr/local/jdk/bin/i586/green_threads/java: error in loading shared libraries
/usr/X11R6/lib/libXp.so.6: undefined symbol: _Xglobal_lock

I'd appreciate any help saying what the problem is, or advising what I should do to check my system out.  Like,
what do these messages exactly mean?  What tool can I use to find out what doesn't exist or is outdated, or has a broken dependency?

Here are the results of running "ldd" on the two named libraries.  (I'm not sure exactly what the results mean):

>ldd /usr/X11R6/lib/libXp.so.6
        libc.so.6 => /lib/libc.so.6 (0x4000a000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00000000)
> ldd /usr/X11R6/lib/libXext.a
ldd: warning: you do not have execution permission for `/usr/X11R6/lib/libXext.a'
        not a dynamic executable

My system:
Redhat i386 5.0

...Plus, I've upgraded several *lib* rpms.

Question by:muesli
  • 2
LVL 51

Expert Comment

ID: 1630029
> In function `XextAddDisplay':

   add -lXext to the link command line

for the other undefs try to find in which lib they are:

   foreach l (/usr/X11R6/lib/lib*)
     echo $lib; nm -gop $lib | grep Xglobal_lock

> /usr/local/jdk/bin/i586/green_threads/java: error in loading shared libraries

please post the output of:

    ldd /usr/local/jdk/bin/i586/green_threads/java

Author Comment

ID: 1630030

Thanks for the advice. Here's what I've done so far:

1)  Your advice helped me solved the problem with compiling the KDE code.  -lXext was already being used, so I ran your script - it found that the symlink for libXext was pointing to a nonexistent file.  After fixing the link, the code compiles.  Awesome.  Here is the current output of the script, fyi:
foreach lib (/usr/X11R6/lib/lib*)
foreach? echo $lib; nm -gop $lib | grep Xglobal_lock
foreach? end
/usr/X11R6/lib/libX11.a:Quarks.o:         U _Xglobal_lock
/usr/X11R6/lib/libX11.a:ConnDis.o:         U _Xglobal_lock
/usr/X11R6/lib/libX11.a:ErrDes.o:         U _Xglobal_lock
/usr/X11R6/lib/libX11.a:ErrHndlr.o:         U _Xglobal_lock
/usr/X11R6/lib/libX11.a:XlibInt.o:00000004 D _Xglobal_lock
/usr/X11R6/lib/libX11.a:locking.o:         U _Xglobal_lock
/usr/X11R6/lib/libXext.a:extutil.o:         U _Xglobal_lock
/usr/X11R6/lib/libXp.a:XpExtUtil.o:         U _Xglobal_lock
/usr/X11R6/lib/libXp.a:XpLocale.o:         U _Xglobal_lock
/usr/X11R6/lib/libXp.so:         U _Xglobal_lock
/usr/X11R6/lib/libXp.so.6:         U _Xglobal_lock
/usr/X11R6/lib/libXp.so.6.2:         U _Xglobal_lock

2) Executing the command on the Java executable gives the following output:
ldd /usr/local/jdk/bin/i586/green_threads/java
        libjava.so => not found
        libm.so.6 => /lib/libm.so.6 (0x40003000)
        libdl.so.2 => /lib/libdl.so.2 (0x4001c000)
        libawt.so => not found
        libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x40020000)
        libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x4002d000)
        libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x4007c000)
        libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x40090000)
        libXp.so.6 => /usr/X11R6/lib/libXp.so.6 (0x40099000)
        libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x400a0000)
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x400ac000)
        libc.so.6 => /lib/libc.so.6 (0x40166000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00000000)
        libdl.so.1 => /lib/libdl.so.1 (0x4020a000)
        libXintl.so.6 => /usr/X11R6/lib/libXintl.so.6 (0x4020f000)

.By using locate, I found the directory that libjava.so, etc are in (/usr/local/jdk1.1.6/lib/i586/green_threads), added it to /etc/ld.so.conf, and ran ldconfig.  The output of ldd now looks better:
ldd /usr/local/jdk/bin/i586/green_threads/java
        libjava.so => /usr/local/jdk1.1.6/lib/i586/green_threads/libjava.so (0x40003000)
        libm.so.6 => /lib/libm.so.6 (0x40074000)
        libdl.so.2 => /usr/local/jdk1.1.6/lib/i586/green_threads/libdl.so.2 (0x4008d000)
        libawt.so => /usr/local/jdk1.1.6/lib/i586/green_threads/libawt.so (0x40091000)
        libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x400d9000)
        libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x400e6000)
        libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x40135000)
        libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x40149000)
        libXp.so.6 => /usr/X11R6/lib/libXp.so.6 (0x40152000)
        libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40159000)
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40165000)
        libc.so.6 => /usr/local/jdk1.1.6/lib/i586/green_threads/libc.so.6 (0x4021f000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00000000)
        libdl.so.1 => /lib/libdl.so.1 (0x402c3000)
        libXintl.so.6 => /usr/X11R6/lib/libXintl.so.6 (0x402c8000)

.BUT, executing Java still produces the same error message:
$ java
/usr/local/jdk/bin/i586/green_threads/java: error in loading shared libraries
/usr/X11R6/lib/libXp.so.6: undefined symbol: _Xglobal_lock

LVL 51

Accepted Solution

ahoffmann earned 800 total points
ID: 1630031
I suggest to move your libjava to /usr/lib (or /lib) and then run ldconfig again.

For testing you also may set the LD_LIBRARY_PATH environment variable to the needed lib-directories:

    setenv LD_LIBRARY_PATH \

Anyway, the message reported by  java  is strange, looks like a
recursive dependency (which should not be a problem for shared libs). Is  java  as called in your last comment a script which
points to (execs) the executable from another path? then please
execute the binary, /usr/local/jdk/bin/i586/green_threads/java,
itself (probably with the above LD_LIBRARY_PATH).

Also keep in mind that some shells need to be restarted after a ldconfig (csh has a rehash command:-)

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.

590 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question