This is a little strange.
When I select the Arduino Due in the Arduino 1.5.5 IDE, the sketch compiles fine and uploads to the digix without problems. (just no serial), and can't debug the sketch (it needs serial).
When I select the in the Arduino IDE the digistump Digix board and compiles the sketch, it gives me an error:
sketch_nov30a.ino:15: fatal error: SPI.h: No such file or directory
compilation terminated.
Is a little strange, or I'm doing some stupid?