--- libstdc++-v3-3.3.4.ebuild.orig	2005-02-07 09:28:10.000000000 +0900
+++ libstdc++-v3-3.3.4.ebuild	2005-02-07 09:38:20.000000000 +0900
@@ -67,7 +67,7 @@
 	# in gcc 3.3 there is a bug on ppc64 where if -mcpu is used
 	# the compiler incorrectly assumes the code you are about to build
 	# is 32 bit
-	use ppc64 setting="`get-flag mcpu`"
+	use ppc64 && setting="`get-flag mcpu`"
 	[ ! -z "${setting}" ] && filter-flags -mcpu="${setting}"
 
 	# only allow the flags that we -know- are supported