Problem compiling programs after upgrade from RedHat 9.0

[Cláudio F. Gil]

> Did you do
> #export CC=gcc32
> before compiling? kernel needs to 3.2!
>
> Christoph

I'm actually compiling C++. So my problem now is other.
I have the interaction
---
$ export CXX=gcc32
$ make
(...)
gcc32: scoutimagesource.cpp: C++ compiler not installed on this system
(...)
---

Where do I geet g++32 or equivalente? I can't find it and it's not in the 
Fedora Core 1 Package List.