Make the mac68k 'tags' target work.

sys/arch/m68k/Makefile.inc

@@ -1,6 +1,4 @@
-#	$NetBSD: Makefile.inc,v 1.2 1998/11/15 20:36:30 perry Exp $
-
-SYSDIR?=	/sys
+#	$NetBSD: Makefile.inc,v 1.3 2007/02/25 05:47:55 dyoung Exp $
 
 SM68K=	${SYSDIR}/arch/m68k/m68k/*.[ch] ${SYSDIR}/arch/m68k/include/*.h
 AM68K=	${SYSDIR}/arch/m68k/m68k/*.s

sys/arch/mac68k/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.8 2003/01/06 17:40:36 lukem Exp $
+#	$NetBSD: Makefile,v 1.9 2007/02/25 05:47:55 dyoung Exp $
 
 # Makefile for mac68k tags file and boot blocks
 
@@ -17,7 +17,8 @@ DMAC68K=mac68k dev include nubus obio
 .include "../../kern/Make.tags.inc"
 
 tags:
-	-ctags -wdtf ${TMAC68K} ${SMAC68K} ${SM68K} ${COMM}
+	-rm -f ${TMAC68K}
+	-echo ${SMAC68K} ${SM68K} ${COMM} | xargs ctags -wdtf ${TMAC68K}
 	egrep "^ENTRY(.*)|^ALTENTRY(.*)" ${AMAC68K} ${AM68K} | \
 	    sed "s;\([^:]*\):\([^(]*\)(\([^, )]*\)\(.*\);\3 \1 /^\2(\3\4$$/;" \
 	    >> ${TMAC68K}