# Makefile for King Stack examples

# Use gcc as our C compiler  (try g++ too)
CC = gcc

# Use the flags -g (debug) -Wall (all warnings on) -ansi (be strinctly ansi) 
# when running the C compiler
CFLAGS = -g -Wall -ansi

# A variable that is the names of all the programs we want to build
PROGS = st1 st2 st3 st4

# First target in a Makefile is always the default - it says that the default
# target is whatever is in variable PROGS
all: ${PROGS}

st1: st1.o stack1.o
	${CC} -o st1 st1.o stack1.o

st2: st2.o stack1.o
	${CC} -o st2 st2.o stack1.o

st3: st2.o stack2.o
	${CC} -o st3 st2.o stack2.o

st4: st2.o stack3.o
	${CC} -o st4 st2.o stack3.o

st1.o: st1.c stack.h
	${CC} ${CFLAGS} -c st1.c

st2.o: st2.c stack.h
	${CC} ${CFLAGS} -c st2.c

stack1.o: stack1.c stack.h
	${CC} ${CFLAGS} -c stack1.c

stack2.o: stack2.c stack.h
	${CC} ${CFLAGS} -c stack2.c

stack3.o: stack3.c stack.h
	${CC} ${CFLAGS} -c stack3.c

clean:
	/bin/rm -f ${PROGS} *.o *~