Symlink awk.y to awktab.y so that the default yacc rules apply, and use

the (new) default yacc rules.  This is cosmetic - the special rule was
good enough here because y.tab.h is not used.

Don't generate y.output.

gnu/usr.bin/awk/Makefile

@@ -1,32 +1,32 @@
 # Makefile copyright James Raynard (jraynard@freebsd.org) 1997
 #
-# $Id: Makefile,v 1.9 1997/10/26 12:20:45 ache Exp $
+# $Id: Makefile,v 1.10 1997/10/26 12:53:16 jraynard Exp $
 
 .include "${.CURDIR}/../Makefile.inc"
 
 .PATH:	${.CURDIR}/../../../contrib/awk
 
 PROG=	awk
-SRCS=	array.c awktab.c builtin.c eval.c field.c gawkmisc.c io.c main.c \
+SRCS=	array.c awktab.y builtin.c eval.c field.c gawkmisc.c io.c main.c \
 	msg.c node.c re.c version.c dfa.c getopt.c getopt1.c
 MAN1=	doc/awk.1
 
 YACC = bison -y
+YFLAGS=
 
 # Important for ctype macros!
 CFLAGS+=        -funsigned-char
 
 CFLAGS+=	-I${.CURDIR} -I${.CURDIR}/../../../contrib/awk
 CFLAGS+=	-DHAVE_CONFIG_H -DGAWK -DDEFPATH=\".\"
-CLEANFILES	+=awktab.c y.output y.tab.h
+CLEANFILES=	awktab.y
 
 SUBDIR+= doc
 
 DPADD+= ${LIBGNUREGEX} ${LIBM}
 LDADD+= -lgnuregex -lm
 
-
-awktab.c:	${.CURDIR}/../../../contrib/awk/awk.y
-	$(YACC) -v $> && mv y.tab.c awktab.c
+awktab.y: awk.y
+	ln -fs ${.ALLSRC} ${.TARGET}
 
 .include <bsd.prog.mk>