###############################################
# makefile5: Pattern Rules 
###############################################

RELEASE_OPTIONS = 
DEBUG_OPTIONS = -g
RELEASE_OBJS = teststack.o stack.o
DEBUG_OBJS = teststack.do stack.do
RELEASE_EXEC = teststack
DEBUG_EXEC = teststackgdb

%.o: %.c
	gcc $(RELEASE_OPTIONS) -c -o $@ $<

%.do: %.c
	gcc $(DEBUG_OPTIONS) -c -o $@ $<

all: debug release

release: $(RELEASE_EXEC)

debug: $(DEBUG_EXEC)

clobber: clean
	rm -f *~ \#*\# core

clean:
	rm -f $(RELEASE_OBJS) $(DEBUG_OBJS) $(RELEASE_EXEC) $(DEBUG_EXEC)

$(RELEASE_EXEC): $(RELEASE_OBJS)
	gcc -o $(RELEASE_EXEC) $(RELEASE_OBJS)

$(DEBUG_EXEC): $(DEBUG_OBJS)
	gcc -o $(DEBUG_EXEC) $(DEBUG_OBJS)

teststack.o: teststack.c stack.h

teststack.do: teststack.c stack.h

stack.o: stack.c stack.h

stack.do: stack.c stack.h