[CentOS] 32-bit compat-gcc on 64-bit CentOS?

Ugh.

One of our internal servers crashed so bad I just went out and bought a
new machine to replace it.

The old server was Pentium-4 based and running CentOS-5. When I
installed CentOS on the new machine, I used the 64-bit version, partly
because that habit is almost automatic nowadays, and partly because the
new machine has 6GB of RAM, so 32-bit seemed not very appropriate.

Anyway, I've managed to configure every one of the old server's many
functions to match on the new server but one: I need the 32-bit version
of compat-gcc-34. (Or at least I need to be able to compile 32-bit
binaries with the already available version.) I can't seem to do this;
am I just missing something?

In retrospect, installing the 64-bit OS may have been foolish. But it's
too late now. I've spent several days installing/loading/configuring
this system to the point it's at now. It would be a pity to have to
start over completely just to enable this one (very critical) function.

-Alan