Not all NetBSD platforms support joysticks. Based on ones which are active
in their GENERIC config's only have those actually compile in NetBSD specific
joystick support. For the rest let the generic joystick support get pulled
in (and then fail to probe so the code will disable it anyways).
Otherwise this fails on any system without <machine/joystick.h>
XXX...This really should be redone at some point since it's messy now and
the original code looks like it had the concept of no joystick support in
the first place.
Changes since version 1.4.0:
- major code redesign to maintain generic game functions in a separate
library and make it easier to port the game to new targets like SDL
- can be compiled with SDL library to build native Windows version
- DOS and Windows versions can be compiled with gcc cross-compiler
- trying to open already busy audio device does not block the game
- fixed network playing bug (patch from web site)
- SDL version can load and play music modules
- fixed element description in level editor for EM doors and keys
