Question

I am new to Code::Blocks. For my studies I am programming several small programms in C (just to try things out).
I tried to put them all in one project, because they belong to the same topic, but that doesn’t work because each of them has a main function.

Any ideas how I can put those files together somehow, but not depending on each other?

Answer 1

let’s say that your project contains 3 c files and each c file is a separate program and it contains its own main function:

• program1.c
• program2.c
• program3.c

So you can write a Makefile (its name in your computer should be “Makfile”). It will build the program you want separately

This is how your makefile looks:

all: program1 program2 program3

%.o: %.c
    $(CC) $(CFLAGS) -c -o $@ $^

program1: program1.o
    $(CC) $(LDFLAGS) -o $@ $^

program2: program2.o
    $(CC) $(LDFLAGS) -o $@ $^

program3: program3.o
    $(CC) $(LDFLAGS) -o $@ $^

clean:
    rm -f *.o program1 program2 program3

with the above Makefile you can build each program separetly

example

$ make program1

will build only program1

or you can buil all programs with

$make all