--- ppp-2.4.1/pppd/utils.c	Thu Jun  6 16:22:58 2002
+++ ppp-2.4.1/pppd/utils.c	Thu Jun  6 16:22:00 2002
@@ -254,7 +254,7 @@
 	    break;
 	case 'r':
 	    f = va_arg(args, char *);
-#ifndef __powerpc__
+#if !defined(__powerpc__) && !defined(__s390__) && !defined(__s390x__) && !defined(__x86_64__)
 	    n = vslprintf(buf, buflen + 1, f, va_arg(args, va_list));
 #else
 	    /* On the powerpc, a va_list is an array of 1 structure */