I forked and modified the arduino-due-makefile project and modified it for the Udoo boards. To use it, drop it in a folder with an ino file and do "make compile" and/or "make upload". You can find it on my github repo at https://github.com/Donavan/udoo-makefile This is just a temporary bandaid. I'm going to loop back and try to get the main arduino-makefile to support Udoo soon. Hopefully this weekend.