avrlib

what is the path that is put in to #include to access the avrlib files?

Can you give an example of which files you mean?

Can you give an example of which files you mean?

arduino-0006/lib/avrlib/nmea.h

You’ll need to copy the avrlib files you want to use (and their dependencies) into lib/targets/arduino or into your sketch’s directory. Then you can just do:

#include "nmea.h"

Thanks