'undefined reference' error when compiling on gcc 4.4.5

[xoft]

Wow, really? They said it didn't compile / run on Raspberry Pi, but none of us could get a hand on a working simulator, let alone the real device, so we never had the chance to fix things.

I suspect there's gonna be need for a lot of fine-tuning for the RasPi though, especially the memory management. But this is a great start!