--- nagios-2.0rc2/config.sub	2003-08-12 03:19:27.000000000 +0200
+++ nagios-2.0rc2-ppc64/config.sub	2006-01-19 10:49:01.000000000 +0100
@@ -719,6 +719,8 @@
 		;;
 	ppc)	basic_machine=powerpc-unknown
 	        ;;
+	ppc64)	basic_machine=powerpc64-unknown
+	        ;;
 	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)