Thread:Extension talk:Scribunto/Upgrading the GNU C Library/reply

That FAQ quote is exactly what I was thinking of (without knowing exactly where it was stated) when I reverted your edit.

If you copy the lua binaries from Scribunto master (or from Gerrit change 77905), that should do it. We recently recompiled the distributed binaries against an older version of glibc to help with your sort of situation, so if I recall correctly the minimum is now 2.3 rather than 2.11.

To upgrade your C library, your best option is usually to follow your distribution's instructions for upgrading packages (or for upgrading to a new release of the distribution, if applicable).