Default to -O2 for x86_64.

share/mk/sys.mk

@@ -1,4 +1,4 @@
-#	$NetBSD: sys.mk,v 1.73 2003/03/29 22:12:06 fvdl Exp $
+#	$NetBSD: sys.mk,v 1.74 2003/05/04 12:05:50 fvdl Exp $
 #	@(#)sys.mk	8.2 (Berkeley) 3/21/94
 
 unix?=		We run NetBSD.
@@ -22,6 +22,7 @@ LINK.S?=	${CC} ${AFLAGS} ${CPPFLAGS} ${LDFLAGS}
 CC?=		cc
 .if ${MACHINE_ARCH} == "alpha" || \
     ${MACHINE_ARCH} == "arm" || \
+    ${MACHINE_ARCH} == "x86_64" || \
     ${MACHINE_ARCH} == "armeb" || \
     ${MACHINE_ARCH} == "i386" || \
     ${MACHINE_ARCH} == "m68k" || \