Greatly clean up the Makefiles and add a Makefile.inc to more obviously

advertise tip's choice of location and perms.

usr.bin/tip/Makefile.inc

@@ -0,0 +1,5 @@
+# These are mostly just for tip, but they're more visible up here.
+BINDIR?=	/usr/bin
+BINOWN?=	uucp
+BINGRP?=	dialer
+BINMODE?=	4510

usr.bin/tip/libacu/Makefile

@@ -1,5 +1,5 @@
-LIB=acu
-CFLAGS+=	-g -I${.CURDIR}/../tip
+LIB=		acu
+CFLAGS+=	-I${.CURDIR}/../tip
 SRCS=		acucommon.c biz22.c courier.c df.c dn11.c hayes.c \
 		multitech.c t3000.c tod.c unidialer.c v3451.c v831.c ventel.c
 NOPROFILE=	yes

usr.bin/tip/tip/Makefile

@@ -7,18 +7,18 @@
 #	/var/log/aculog		ACU accounting file, owned by ${OWNER} and
 #				mode 6?? {if ACULOG defined}
 
-CFLAGS+=-g
-LIBACU=../libacu/libacu.a
-BINDIR=/usr/bin
-BINOWN=uucp
-BINGRP=dialer
-BINMODE=4510
-LDADD+=$(LIBACU)
-LINKS=${BINDIR}/tip
-MAN1=tip.1
-MAN5=modems.5
-SRCS=acu.c acutab.c cmds.c cmdtab.c cu.c hunt.c log.c partab.c \
+.if exists(${.CURDIR}/../libacu/obj)
+LIBACU=${.CURDIR}/../libacu/obj/libacu.a
+.else
+LIBACU=${.CURDIR}/../libacu/libacu.a
+.endif
+
+PROG=	tip
+LDADD+=	$(LIBACU)
+LINKS=	${BINDIR}/tip
+MAN1=	tip.1
+MAN5=	modems.5
+SRCS=	acu.c acutab.c cmds.c cmdtab.c cu.c hunt.c log.c partab.c \
 	remote.c tip.c tipout.c uucplock.c value.c vars.c 
-PROG=tip
-$(OBJS): tipconf.h
+
 .include <bsd.prog.mk>