Forced commit to supply a proper message for the previous change.

Forced commit to supply a proper message for the previous change.

1) Clean up:
	* Traditional function declarations -> prototype form
	* Remove unnecessary void casts
	* Use '\0' where '\0' is meant
	* Add some extra spaces
	* include <stdlib.h> for exit()
	* Add $DragonFly$ to Makefile

2) Raise WARNS to 6