Don't use beforedepend to break things. The usual fix of putting

generated sources in SRCS breaks because compile_et uses an evil
include of one .c file in another.  Use a worse fix.  Perhaps
DPSRCS is useful after all.

Don't put *.y in SRCS.  Put the generated file in SRCS instead.
This fixes incomplete dependencies (mkdep can't work on *.y).

Don't override the default .l.c rule.  Just use LFLAGS.

Fixed some style bugs.

usr.bin/compile_et/Makefile

@@ -1,17 +1,15 @@
-#	$Id$
+#	$Id: Makefile,v 1.7 1997/02/22 19:54:44 peter Exp $
 
 PROG=	compile_et
-SRCS=	compile_et.c error_table.y
-CFLAGS+=	-I. -I${.CURDIR}/../../lib/libcom_err
-CLEANFILES+=	et_lex.lex.c y.tab.h
-DPADD+=	${LIBL}
-LDADD+=	-ll
+SRCS=	compile_et.c error_table.c
+CFLAGS+=-I. -I${.CURDIR}/../../lib/libcom_err
+LFLAGS+=-l
+DPADD=	${LIBL}
+LDADD=	-ll
+CLEANFILES=	error_table.c et_lex.lex.c y.tab.h
 
-beforedepend:	et_lex.lex.c
-error_table.o:	et_lex.lex.c
-
-.l.c:
-	${LEX} -l -t ${.IMPSRC} > ${.TARGET}
+error_table.o: et_lex.lex.c
 
 .include <bsd.prog.mk>
 
+${DEPENDFILE}: et_lex.lex.c