问题
if anyone could give a beginner some help on gcc version issue?
I met the issue on "version GLIBCXX_3.4.20' not found". After I followed the link: How to Install gcc 5.3 with yum on CentOS 7.2?
I met extra issues as below:
scl enable devtoolset-7 bash
git: relocation error: libc.so.6: symbol _dl_starting_up, version GLIBC_PRIVATE not defined in file ld-linux-x86-64.so.2 with link time reference
回答1:
if anyone could give a beginner some help on gcc version issue?
Your problem has nothing to do with any GCC versions.
git: relocation error: libc.so.6: symbol _dl_starting_up, ...
This error most likely means that you are trying to use something other than the system libc.so.6 (perhaps by pointing LD_LIBRARY_PATH to directory that contains a copy of libc.so.6 from a different system).
Don't do that: it doesn't work. Using alternate GLIBC version is possible, but complicated. This answer provides some ways to do that.
来源：https://stackoverflow.com/questions/49245547/version-glibc-private-not-defined-in-file-ld-linux-x86-64-so-2