It doesn't really compile all that well, I gave up when the Vulture's Eye team gave me an idea of what it requires to do complete software rendering on (2.4ghz, I believe). It might be possible under sdk2k, but not now.
As for regular nethack, it's its own cute little nightmare in it's own. It has values for arm-linux in the makefile, but it seems to be for a Qt port, I'm not sure yet.