upgrade gcc on fedora core 4

[Rossella Noschese]

Hello,
I've a question. At work we have a fedore core 4 release on a 64-bit
machine. We need now to upgrade the compiler. We have GNU Fortran 95 (GCC
4.0.0 20050519 (Red Hat 4.0.0-8)). We need at least gcc version 4.1.2
20071124 (Red Hat 4.1.2-42). I'm not a great shell user, so can you help me?
How do I get this upgrade?
Thanx in advance,
Rossella.
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