The choice between one or the other has a direct impact on program size, portability and maintenance the extensions: moment when your code is linked […]
The difference between putting the path in the source code (#include) and using GCC’s -I option (the portable approach) lies in where the path information […]
If your main.c looks like this: cannot accept the argument from the command line, because that signature (int main()) does not expect to receive arguments […]