x86_64 doesn't use the "new toolchain" but it doesn't really use the

old one either.  The "new toolchain" environment is closer to what we
want, however, for using the external toolchain currently required for
x86_64, so set USE_NEW_TOOLCHAIN for x86_64.

share/mk/bsd.own.mk

@@ -1,4 +1,4 @@
-#	$NetBSD: bsd.own.mk,v 1.241 2001/12/28 01:32:41 lukem Exp $
+#	$NetBSD: bsd.own.mk,v 1.242 2001/12/28 06:57:41 thorpej Exp $
 
 .if !defined(_BSD_OWN_MK_)
 _BSD_OWN_MK_=1
@@ -21,6 +21,7 @@ NEED_OWN_INSTALL_TARGET?=	yes
     ${MACHINE_ARCH} == "powerpc" || \
     ${MACHINE_ARCH} == "sparc" || \
     ${MACHINE_ARCH} == "sparc64" || \
+    ${MACHINE_ARCH} == "x86_64" || \
     ${MACHINE} == "next68k" || \
     ${MACHINE} == "sun3" || \
     ${MACHINE} == "mvme68k" || \