SEGV while working with va_list

Hi, The following program crashes on suse-ppc. I am trying to copy the command line parameters to a string buffer. I tried this on suse i386 and its working fine. Its crashing on suse-ppc. #include #include main(int argc, char *argv[]) { char Buffer[1024]; va_list ap; //ap = argv; //works fine on i386 va_copy(ap,argv); // cant use ap = argv on ppc. Need to use va_copy vsprintf(Buffer,"Command Line arguments: %s\n",ap); printf("%s", Buffer); } Please help me in resolving this. Thank you, Appy.