Sample Makefile for CS 104 homework question

Makefile

IDIR =.
CC=g++
CFLAGS=-I$(IDIR) -std=c++11 -ggdb

ODIR=.
LDIR =../lib

LIBS=-lm

_DEPS = shape.h
DEPS = $(patsubst %,$(IDIR)/%,$(_DEPS))

_OBJ = shape.o shape1.o shape2.o
OBJ = $(patsubst %,$(ODIR)/%,$(_OBJ))

$(ODIR)/%.o: %.cpp $(DEPS)
	$(CC) -c -o $@ $< $(CFLAGS)

all: shape1 shape2

shape1: shape1.o shape.o
	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)

shape2: shape2.o shape.o
	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)

.PHONY: clean

clean:
	rm -f $(ODIR)/*.o *~ shape1 shape2 $(IDIR)/*~