glibc_2.14 not found

I’m trying to install picotts (because flite is so poor) and I get the following error…

pico2wave: /lib64/ version `GLIBC_2.14' not found (required by pico2wave)

Is there any way to upgrade the libc libraries or would that break everything?

What about
`yum reinstall glibc-common

I don’t know how that affects fpbx. I compiled it from source and have pico2wave working. Next is to get picotts (which uses pico2wave) working. Pico2wave is very superior to flite. It would be nice for the fpbx team to include it in the distro.