Need help with Makefiles and compiling

vasilythecat · 08-27-2012, 10:22 AM

Hi,
I'm very new to Makefiles and I need some help...
I have a C++ program with 3 directories (A, B, and C). I want to create a Makefile in each directory where it will only compile files in that directory. One of the problems is that files in A #include header files in B and C and those files either don't compile yet or the compiler tells me that FileInB.h doesn't exist...

I want to create a Makefile to compile FileInA who's header looks like this:

Code:

#ifndef FILEINA
#define FILEINA

#include "FileInB.h"

class FileInA {
   // some functions
}
#endif

The Makefile in A is simply this (don't laugh...):

Code:

all:
   g++ FileInA.cpp

When I run make in the A directory, I get:
"FileInB.h: No such file exists"

It sounds like I need to set the path to FileInB.h in A's Makefile, right? How would I do that and would it let me compile without compiling anything in B or C?

I really appreciate any help anyone can offer.
Thanks

abrinister · 08-27-2012, 10:28 AM

Because FileInB.h is in another folder. So your include should reflect that. Make will follow those include paths. You just have to set the right one.

Alex Brinister