HW4
COP-3402

1. Do Makefiles use tab characters or space characters for indentation?

2. Consider the following rule

   hello: hello.c
       gcc -o hello hello.c
   

   a. What is the target?

   b. What is the prerequisite?

   c. What is the recipe?

3. In the above rule, what happens if you run make twice in a row assuming the hello.c builds successfully the first time?