https://serverfault.com/questions/894625/safely-upgrade-glibc-on-centos-7
https://unix.stackexchange.com/questions/176489/how-to-update-glibc-to-2-14-in-centos-6-5
https://stackoverflow.com/questions/44205687/glibcxx-3-4-21-not-found-on-centos-7

manjaro
    2.28-4

cos7
    2.17