Can i control it so this include is only made in the project depending on a define? The inclusion adds need for dll, paths and other stuff i dont use in all projects so i would want to toggle it on/off

I know this is not the syntax but you get the idea:

#define ADV_MODE 1

if (ADV_MODE)
   #include <advLibrary.h>

Sure you can, and it usually takes the form:

#ifdef USE_HEADER_H
#include <header.h>
#endif

That's quite close to it!

What you are looking for is the "ifdef" preprocessor directive

#ifdef ADV_MODE
   #include <advLibrary.h>
#endif

Or, if you actually want to use its value, a regular "if"

#if ADV_MODE == 1
    #include <advLibrary.h>
#endif

Thanks!