i did a very minimal (workstation only) install of red hat core 4, and would like to set up zimbra, on this server. when i run the installer.sh i get the following

Checking for prerequisites...
NPTL...FOUND
libidn...FOUND libidn-0.5.15-1
curl...FOUND curl-7.13.1-3
fetchmail...FOUND fetchmail-6.2.5-7
gmp...MISSING
/usr/lib/libstdc++.so.5...MISSING

###ERROR###

One or more prerequisite packages are missing.
Please install them before running this installer.


is there a list someplace of the pre-requisites. if so can you poiint me in that direction.


thanx