You need gcc to compile postgresql, aolserver, tcl etc. all of which is supplied as source. Check out the Prerequisite Software page here
https://openacs.org/doc/current/individual-programs.html to ensure you have the required bits before you start.
In Mandrake I would type 'urpmi gcc' to install it and any dependencies. You need to use the equivalent Suse package manager to install gcc. The answer will be in the Suse docs here http://www.novell.com/documentation/suse/index.html
- Steve
