cc -O3 -Wall -DVER=626 bug6.c display.c kb.c terrain.c gpl.c food.c start.c look.c findbug.c mate_die.c -o bug6 -lm
bug6.c: In function `main':
bug6.c:306: warning: operation on `fg' may be undefined
bug6.c:452: warning: operation on `dm' may be undefined
bug6.c:456: warning: operation on `u1mode' may be undefined
bug6.c:460: warning: operation on `u2mode' may be undefined
