Upgrading O/S requires Postgres re-build?

Server running Postgres 7.4.5 with:

Red Hat Enterprise Linux AS release 3.90 (Nahant)
Linux 2.6.9-1.648_ELsmp #1 SMP Tue Oct 26 12:24:18 EDT 2004 x86_64
x86_64 x86_64 GNU/Linux

I want to upgrade the O/S to:

Red Hat Enterprise Linux AS release 4 (Nahant)
Linux 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:29:47 EST 2005 x86_64 x86_64
x86_64 GNU/Linux

If I upgrade the O/S to the release stated above, do I need to
re-install and build Postgres 7.4.5?

Thanks,

----

Husam

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