Follow my advice, download a LFS LiveCD and use that to build a Linux From Scratch system. If I remember correctly, it comes with GCC3 by default. Though that could have changed from the last time I checked it, which was several months ago.
But if you really want to build it inside of OpenSuse, then see if you can uninstall gcc4 and install gcc3 in it's place then go from there.
Last edited by Seph64; 02-22-2006 at 11:33 PM.