[fedora-india] Upgrading gcc from source on Fedora / RHEL

[Syam Krishnan]

Hello

   Is it possible to upgrade gcc on an older Fedora (F6, for example) or 
RHEL 5 system by compiling it from sources? My doubt is whether it will 
automatically replace with "glibc" or will I have to upgrade that too by 
compiling from sources? Or don't I need to bother about glibc at all?
Somebody hinted that "binutils" will also need to be rebuilt with the 
new gcc. Is that true?

Any help is highly appreciated.

Syam