/bin/ld: warning: libstdc++.so.5 linux7.1打12.1的psu遇到warning

新装一台单机oracle 12.1 在linux7.1系统上，打psu时遇到warning
Patching component oracle.javavm.containers, 12.1.0.2.0...

OPatch found the word "warning" in the stderr of the make command.
Please look at this stderr. You can re-run this make command.
Stderr output:
/bin/ld: warning: libstdc++.so.5, needed by /u01/app/oracle/product/12.1.0/dbhome_1/ctx/lib//libsc_ca.so, not found (try using -rpath or -rpath-link)

Composite patch 25171037 successfully applied.
OPatch Session completed with warnings.
Log file location: /u01/app/oracle/product/12.1.0/dbhome_1/cfgtoollogs/opatch/opatch2018-09-05_13-34-48PM_1.log

OPatch completed with warnings.

查看mos官网，发现如下文章比较符合
"libstdc++.so.5: cannot open shared object file: No such file or directory" Error When Installing 64 bit Oracle Iplanet Web Server 7.0 on 64 bit Linux. (Doc ID 1365640.1)

文章中提到需要安装yum -y install compat-libstdc++-33，但我在使用yum源安装rpm包时脚本中是包含这个包的，使用rpm -q compat-libstdc++-33
也没有发现该包，镜像中也不存在

我在/usr/lib64中发现libstdc++.so.6
这是一个连接文件
lrwxrwxrwx. 1 root root     19 Sep  4 16:30 libstdc++.so.6 -> libstdc++.so.6.0.19
-rwxr-xr-x. 1 root root 930604 Nov 14  2014 libstdc++.so.6.0.19
so 新建了一个软连接
ln -s libstdc++.so.6.0.19 libstdc++.so.5

psu rollback 后重新打