cd /tmp/TSMinstall
mkdir glibc; cd glibc

# Check installed version(s) of glibc
ldconfig  -p | grep libc.so
strings /lib64/libc.so.6 | grep GLIBC

# Download glibc v2.17 libraries compiled to work for CentOS 6 Systems
# Source: https://gist.github.com/harv/f86690fcad94f655906ee9e37c85b174
wget http://copr-be.cloud.fedoraproject.org/results/mosquito/myrepo-el6/epel-6-x86_64/glibc-2.17-55.fc20/glibc-2.17-55.el6.x86_64.rpm
wget http://copr-be.cloud.fedoraproject.org/results/mosquito/myrepo-el6/epel-6-x86_64/glibc-2.17-55.fc20/glibc-common-2.17-55.el6.x86_64.rpm
wget http://copr-be.cloud.fedoraproject.org/results/mosquito/myrepo-el6/epel-6-x86_64/glibc-2.17-55.fc20/glibc-devel-2.17-55.el6.x86_64.rpm
wget http://copr-be.cloud.fedoraproject.org/results/mosquito/myrepo-el6/epel-6-x86_64/glibc-2.17-55.fc20/glibc-headers-2.17-55.el6.x86_64.rpm

# You might have to install missing packet glibc-common and/or remove i686 version of glibc on 64bit systems:
# yum install glibc-common
# yum remove glibc.i686

# Update glibc to v2.17
rpm -Uvh glibc-2.17-55.el6.x86_64.rpm glibc-common-2.17-55.el6.x86_64.rpm glibc-devel-2.17-55.el6.x86_64.rpm glibc-headers-2.17-55.el6.x86_64.rpm

# Check again installed version(s) of glibc, you should now have v2.17
strings /lib64/libc.so.6 | grep GLIBC


# now update libstdc++ (GLIBCXX):

# check GLIBCXX-Version
strings /usr/lib64/libstdc++.so.6 |grep LIBCXX

# Download libstdc++ v4.8.5 libraries
cd /tmp/TSMinstall
mkdir libstdc; cd libstdc
wget https://rpmfind.net/linux/centos/7.9.2009/os/x86_64/Packages/libstdc++-4.8.5-44.el7.x86_64.rpm

# Update libstdc++ to v4.8.5
rpm -Uvh libstdc++-4.8.5-44.el7.x86_64.rpm

# check GLIBCXX-Version again, should now be > the required GLIBCXX_3.4.15
strings /usr/lib64/libstdc++.so.6 |grep LIBCXX

# all dependencies should now be fixed, so you can finally install TSM 8:
cd ..
rpm -Uvh gskssl64-8.0.55.31.linux.x86_64.rpm gskcrypt64-8.0.55.31.linux.x86_64.rpm TIVsm-API64.x86_64.rpm TIVsm-APIcit.x86_64.rpm TIVsm-BA.x86_64.rpm TIVsm-BAcit.x86_64.rpm