I’ve read Lessons 14 by DarkWyrm (http://darkwyrm.beemulated.net/downloads/pdf/Learning%20to%20Program%20With%20Haiku%20Lesson%2014.pdf)
and I tried to compile the program as he says (sorry for bad english xD).
I had a lot of problems, and I wrote them here:
(I didn’t want to double-post)
Thanks to anyone who wants to answer!
(again, sorry for bad english xD)