Have been moving a project from the Mega to the Due. It uses Easy Transfer. It didn't compile. Happily i solved the problem. I'm sure the more competent could have done this and/or don't use Easy Transfer. However if you do use it and cant figure it out this is what to do.
(It might be the case that it's not working fully i don't know, it works for what i use it for)
Find these in EasyTransfer.h
//#include <math.h>
#include <stdio.h>
#include <stdint.h>
#include <avr/io.h>
comment them out and it seems to work i don't think it needs them.
