	o	Create a makefile: 
	
		main: main.o num_compare.o
			cc -g  -o main main.o  num_compare.o
	
		main.o: main.c
			cc -gc main.c
	
		num_compare.o: num_compare.c
			cc -gc num_compare.c
				
	o Create the executable, main:
	
		$ make
	
	
	HP-UX:
	
	o	Create a makefile: 
	
	main: main.o num_compare.o
		c89 -o main -g main.o num_compare.o 
	
	main.o: main.c
		c89 -gc main.c
	
	num_compare.o: num_compare.c
		c89 -gc num_compare.c
	
	o Create the executable, main:
	
		$ make
