Makefiles

Create the following 3 files using touch: button.c window.c window.h

This will be our `source code.'  These are zero length files; we are
simply using them for instructional purposes.

Dependency chart:

           popup
        /         \
   button.o     window.o
      |            |     \
   button.c     window.c   window.h

Assuming the following are the commands to build (make) the executable popup:

cc -c button.c => button.o
cc -c window.c => window.o
cc -o popup button.o window.o => popup

Write a Makefile to build this program.
(since these are files are not really source code, we must use make -n)


--

Makefile

all: popup

popup: button.o window.0
	cc -o popup button.o window.o

button.o: button.c
	cc -c button.c

window.o: window.c window.h
	cc -c window.c