[fetchmail]Installing vrs. 5.9.11 - Doubt

Hi there all !!

I'm from Brasil and I'm having problems to install the new version 5.9.11 of 
fetchmail.

It is requesting for GLIBC 2_2 and I don't know where and how to get and 
install this Library.

Does anyone can help me, please ?

Thanks in advance...

Wilson.