.POSIX:
.SUFFIXES: 
CC	= cc
CFLAGS	= -Wall -O2
LDFLAGS = -static
LDLIBS	=
PREFIX = usr/local
DESTDIR = 
BIN = echo yes true false cat

all: ${BIN}
echo: echo.c
wc: wc.c
yes: yes.c
true: true.c
false: 
	ln -s true false
cat: cat.c

install: all
	install -Dm0755 ${BIN} ${DESTDIR}/${PREFIX}/bin

clean: all
	rm ${BIN} *.o

check: 
	splint +checks +posix-strict-lib +showsummary +forcehints +showscan +showsourceloc +toctou +its4low +its4moderate +its4risky +its4veryrisky +its4mostrisky +bufferoverflow *.c *.h

.SUFFIXES: .c .o
.c.o:
	${CC} ${CFLAGS} ${LDFLAGS} -c $<