Fix many compiler warnings.

There should only be two changes in behavior:

arogue7/fight.c, arogue7/fight.c: a to-hit bonus is now correctly
applied to characters who are not monks instead of monks who are not
empty-handed.

urogue/fight.c: fixed an interaction with the "debug" macro that could
cause the wrong message to be displayed.

rogue5/mach_dep.c

@@ -377,12 +377,15 @@ ucount(void)
 }
 #endif
 
+#if defined(SCOREFILE) && defined(LOCKFILE)
+static FILE *lfd = NULL;
+#endif
+
 /*
  * lock_sc:
  *	lock the score file.  If it takes too long, ask the user if
  *	they care to wait.  Return TRUE if the lock is successful.
  */
-static FILE *lfd = NULL;
 int
 lock_sc(void)
 {