--- musepack-tools-1.15s-r1.ebuild	2005-01-17 11:32:25.994317312 +0000
+++ musepack-tools-1.15s-r1.ebuild.local	2005-01-17 11:32:09.181873192 +0000
@@ -40,7 +40,7 @@
 		sed -i 's/LDADD   += -lesd/#LDADD   += -lesd/' Makefile
 	fi
 
-	if ! ( use x86 || use amd64 ); then
+	if ! use x86 ; then
 		sed -i 's/#define USE_ASM/#undef USE_ASM/' mpp.h
 	fi