Coming from here→ libc.so.6: version `GLIBC_2.16' not found I see that is somewhat possible to run a programs against a library that is not hard installed in the OS.
I would want to know how to put a libc6 updated in a place of the system (but without installing it) and linking it to a small program to run (HipHop in this case).
However, although I am in 11.10 and the best way would be installing an updated OS, I want to know how to do this, because this can happen in other situations (like installing old libs in a new system), and I don't know how to do it.
In short: I would want to know if it is possible to "pack" a set of libs in a place in the system, but without having conflicts with the installed ones in order to run old programs or in other to run new programs in old versions of Ubuntu.
ps. this is my first question here and I am also not english native, so if I made a error to post it here, please don't ban me, just say me politely what I did wrong.