The badass tutorial for creating makefiles!

Tutorial 2: basic variables

In this step i will go through how to use variables!

In this tutorial just copy or reuse the files and folder from the previous tutorial.

Change the contents of the makefile to this:

#Another simple makefile.

VARIABLE1 = gcc
VARIABLE2 = prog

all:
	$(VARIABLE1) $(VARIABLE2).c -o $(VARIABLE2)
	./$(VARIABLE2)

After that just execute as in the previous tutorial with:

make

What happened?

The result you should get this time should be the same, eg:

gcc prog.c -o prog
./prog
Hello World!

It just swapped the $(VARIABLE1) to gcc and $(VARIABLE2) to prog. So $(VARIABLE1) $(VARIABLE2).c -o $(VARIABLE2) became gcc prog.c -o prog.

See also:

• Using variables in recipes