To install gcc 3.2 on RedHat 7.3, please follow the instructions below:

1. Install glibc-devel-2.2.5-36.2 or above.

# rpm -U glibc-devel-...

if you haven't done so.

2. Install libgcc.

# rpm -U libgcc-...

3. Install libstdc++ with "rpm -i" so that the old libstdc++ rpm won't
get removed. Some system binaries may depend on it.

# rpm -i libstdc++-...

4. Install the rest of gcc 3.2 rpms with

# rpm -U cpp-... gcc-... ...