How to avoid including "-D_BSD_SOURCE" in compile statement every time the code is compiled?

Question

To avoid a whole bunch of strdup errors, I have to always include -D_BSD_SOURCE in my compile statement. Is there a way I can somehow include this in my .c file and never include it in my compile statement again.

Answer 1

At the top of your .c file, before the includes, put this:

#define _BSD_SOURCE