# Makefile 3: Using built-in macros

###################################
# Overriding default macros

# For compiling C files
CC = gcc
CFLAGS = -Wall -g

# For compiling C++ files
CXX = g++
CXXFLAGS = -Wall -g

# For linking
LDFLAGS = 

# For creating a library
AR = ar
ARFLAGS = rc

# End of defaults
###################################


###################################
# Let's define sone additional variables

RANLIB = ranlib

PROGRAMS = main-stack main-queue 
LIBS = libdata.a

STACK_OBJ = main-stack.o stack.o

###################################


all: $(PROGRAMS)

queue.o: queue.c queue.h
	$(CC) $(CFLAGS) -c $<

stack.o: stack.c stack.h
	$(CC) $(CFLAGS) -c $<

main-queue.o: main-queue.c queue.h
	$(CC) $(CFLAGS) -c $<

main-stack.o: main-stack.c stack.h
	$(CC) $(CFLAGS) -c $<

libdata.a: queue.o stack.o
	$(AR) $(ARFLAGS) $@ $^
	$(RANLIB) $@

main-stack: $(STACK_OBJ)
	$(CC) $(LDFLAGS) -o $@ $(STACK_OBJ)

main-queue: main-queue.o $(LIBS)
	$(CC) $(LDFLAGS) -o $@ $< -L. -ldata

clean:
	rm -f *.o $(PROGRAMS) $(LIBS)