Index: nspr-4.9/mozilla/nsprpub/build/autoconf/config.guess
===================================================================
--- nspr-4.9.orig/mozilla/nsprpub/build/autoconf/config.guess	2009-05-02 01:08:01.000000000 +0200
+++ nspr-4.9/mozilla/nsprpub/build/autoconf/config.guess	2012-03-26 14:13:57.000000000 +0200
@@ -527,7 +527,7 @@
 		echo rs6000-ibm-aix3.2
 	fi
 	exit ;;
-    *:AIX:*:[45])
+    *:AIX:*:[4-9])
 	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
 	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000