CXX    = g++
CFLAGS = -Wall -g

ifeq ($(shell uname), Darwin)
    LIBS = -framework GLUT -framework OpenGL -framework Cocoa
else
    LIBS = -lglut -lGL -lGLU
endif

FREEGLUT = /afs/nd.edu/user37/ccl/software/external/freeglut

ifneq "$(wildcard $(FREEGLUT))" ""
    INCPATH = -I$(FREEGLUT)/include
    LIBPATH = -L$(FREEGLUT)/lib
endif

all:	view_ppm

clean:
	rm -f *.o view_ppm

depend:
	rm -f Makefile.back
	mv Makefile Makefile.bak
	sed '/^# DEPENDENCIES/,$$d' Makefile.bak > Makefile
	echo '# DEPENDENCIES' >> Makefile
	$(CXX) -MM *.cc >> Makefile

.c.o: 	
	$(CXX) $(CFLAGS) $(INCPATH) -c -o $@ $<

.cc.o: 	
	$(CXX) $(CFLAGS) $(INCPATH) -c -o $@ $<

.cpp.o: 	
	$(CXX) $(CFLAGS) $(INCPATH) -c -o $@ $<

view_ppm:	view_ppm.o ppm.o
	$(CXX) $(CFLAGS) $(INCPATH) -o $@ $^ $(LIBPATH) $(LIBS)

# DEPENDENCIES