[Paparazzi-devel] main_ap.c question

[Rui Costa]

Hello,

 

 

I'm trying to understand the airborne code. Beginning at main_ap.c.

 

I see there a lot of "#ifdef" like this one:

 

#ifdef TELEMETER
#include "srf08.h"
#endif

 

 

What does this mean?

 

For example, where TELEMETER can be defined?

 

 

Thanks

Rui Costa