Varargs works different on SuSe PPC

Hi List I'm having a problem with a program called Kannel. I'm trying to compile it on my IBM 44P model 270 with SuSE 7.3 PPC installed. It compiles ok but when I run it I get a Segmentation Fault. After debugging it I found out that there is a difference in the way that va_arg works on different platforms. I've been told to try to update my glibc to the latest version but I have version 2.2.4-19, which I think is the latest. Then I've been told to try Darwin. As I've understood it's another compiler, right? Is there a ppc rpm for this? By the way, is there an ftp site where I can get the latest updates for SuSE Linux 7.3 PPC? Jacob