Looking for (compat-) libstdc++.so.5

[Andy Ross]

Just got around to installing a 32 bit Firefox on my x86_64 fc4 test
system.  The installer (and presumably the binary) is linked against
libstdc++.so.5, which doesn't exist on my machine in either
architecture.

In FC3, this was installed in the compat-libstdc++ package, but I
can't find that with yum.

I'll leave the arguments about making YET ANOTHER incompatible change
to the C++ interface for another day.  But surely this package exists
somewhere, no?

Andy