GLIBC errors means that the OS version doesn't match the binary.
....
Also (but not the problem) your curl versions are very old
What it all probably means is that you will need to build it yourself.
realized that after i posted. Upgraded from 6.3 to 6.4 ( RHEL). But still rather old libraries.
I'll be building from git .
Thank you for you the help!
P.S. got it compiled.