--- Makefile.orig	1997-10-27 07:15:08.000000000 +0800
+++ Makefile	2014-06-07 23:36:53.767950530 +0800
@@ -2,12 +2,13 @@ TARGET	= ladder
 SRCS	= ladder.c lplay.c ltime.c lscore.c lscreens.c
 OBJS	= ladder.o lplay.o ltime.o lscore.o lscreens.o
 
-CC		= gcc
-CFLAGS	= -O -pedantic -I/usr/include/ncurses
+CC	?= gcc
+CFLAGS	?= -O
+CFLAGS  += -pedantic -Wall
 LDFLAGS	= -s
 M4		= m4
 LIBS	= -lncurses
-SCOREFILE	= ./ladder.scores
+SCOREFILE	= /var/games/ladder.scores
 
 .SUFFIXES:	.o .c .m4
 
@@ -22,6 +23,14 @@ $(TARGET):	$(OBJS)
 
 $(OBJS):	ladder.h
 
+clean:
+	-$(RM)	$(OBJS) $(TARGET) *.core
+
+all: $(TARGET)
+
+install:
+	$(BSD_INSTALL_PROGRAM) ladder $(DESTDIR)${PREFIX}/bin
+
 # ladder.c:	ladder.m4
 
 # lscreens.c:	lscreens.m4