I cc'd this to the gcc-help list because someone else there may either
have a suggestion, or may have the same problem.
yuki shimada <epsoft@xxxxxxxxxxxxxx> writes:
> Dear person
> I am Yuki Shimada.
> Thank you for your helpping me.
> I had tried
>
> 1) I can find "libstdc++.so.6" is in "/usr/local/lib/libstdc++.so.6"
> for example, I can read following list.
> libstdc++.so
> libstdc++.so.6
> libstdc++.so.6.0.0
>
> ( "find / -iname 'libstdc++.so.6' -print" takes very long time in my
> cpu .
> So I did not complete it . )
>
> 2) # echo /usr/local/lib >> /etc/ld.so.conf
> # ldconfig
> ---> after that,in "/etc/ld.so.conf", command list are as followes.
>
> /usr/kerberos/lib
> /usr/X11R6/lib
> /usr/lib/sane
> /usr/lib/qt-3.1/lib
> /usr/local/lib
>
>
> 3) in bash: I added some command like followings. Is this OK ?
>
> # .bash_profile
>
> # Get the aliases and functions
> if [ -f ~/.bashrc ]; then
> . ~/.bashrc
> fi
>
> # User specific environment and startup programs
>
> PATH=$PATH:$HOME/bin
> $export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
> BASH_ENV=$HOME/.bashrc
> USERNAME="root"
You don't need to do both LD_LIBRARY_PATH and ldconfig; only one or
the other. LD_LIBRARY_PATH is per-user, ldconfig affects the whole
machine. The cache updated by ldconfig is checked before
LD_LIBRARY_PATH, however.
>
> export USERNAME BASH_ENV PATH
>
> 4) For about "csh", I have no knowledge about this.
> Usually,I use "linux ". Must I set LD_LIBRARY_PATH in csh ?
You only need to set LD_LIBRARY_PATH for the shell you use. If you
only use bash, don't worry about csh.
> 5) compilling and excuting result for my case;
>
> [root@localhost c++]# g++ hello.cc
> [root@localhost c++]# ./a.out
> ./a.out: /lib/libgcc_s.so.1: version `GCC_3.3' not found (required by
> /usr/local/lib/libstdc++.so.6)
> [root@localhost c++]#
This is rather strange. I don't get this problem my fbsd or linux
boxen. But I think the problem can be solved a same way: find
libgcc_s.so.1, and then add the dir it is in to ldconfig.
There are two caveats: you will have more than
one libgcc_s.so.1 The one you want is probably in
/usr/local/lib/gcc/i686-pc-linux-gnu/3.4.0/lib or in
/usr/local/lib . You can find out for sure it is the right one by
using:
$ nm /usr/local/lib/libgcc_s.so.1 | grep GCC_3.4
which should print something like:
00000000 A GCC_3.4
The second caveat is that the directory containing the libgcc_s.so.1
from gcc 3.4 *must* come first in both lists. So change your
ld.so.conf to look like this:
/usr/local/lib
/lib
/usr/lib
/usr/kerberos/lib
/usr/X11R6/lib
/usr/lib/sane
/usr/lib/qt-3.1/lib
Finally run:
# ldconfig
If this doesn't work, try LD_PRELOAD (which is also explained in the
ld.so man page.) like this:
$ export LD_PRELOAD=/usr/local/lib/libgcc_s.so.1
> 6) totally, I can not excute ./a.out still now.
> Must I install "GCC_3.3" ?
GCC_3.3 is a symbol which libstdc++.so.6 requires. You could install
gcc 3.3.3, but it wouldn't help; you still need to make ld.so find
the *right* libgcc_s.so.1, and then, instead of having two, you'd
have 3! So hold off on installing gcc 3.3.3 until you get 3.4
working.
> 7)Please help me!.
