how to make "gmake" recompile the files based on their dependencies' modified time

[parth]

Hello guys,

I have create a simple makefile as below. 

But Whenever i execute make command, it doesn't check if any of the files
have modified time greater that the object file's creation time and just
recompiles the all target. 
I have to do make clean everytime I want the Maze.cc to recompile

******************************************
PROGRAM = Astar
DEPENDENCIES = Maze.o Maze.h

all: $(DEPENDENCIES) $(PROGRAM).cc 
        g++ Maze.o Astar.cc -o $(PROGRAM)       

%.o : %.cc %.h
        g++ -c $<

clean:
        rm *.o $(PROGRAM)
********************************************

Can anyone tell me where am I making a mistake?

regards,
parth   


        
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