[root@localhost bin]# firefox
/usr/local/firefox/firefox-bin: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory
[root@localhost bin]# rpm -qf /usr/lib/libstdc++.so.5
error: file /usr/lib/libstdc++.so.5: No such file or directory
[root@localhost bin]# up2date libstdc++

Fetching Obsoletes list for channel: rhel-i386-es-4...

Fetching rpm headers...
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Name                                    Version        Rel
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The following packages you requested are already updated:
libstdc++