--- a/arogue7/rings.c	Fri Feb 26 17:30:30 2016 -0500
+++ b/arogue7/rings.c	Wed Mar 02 21:28:34 2016 -0500
@@ -12,6 +12,7 @@
  */
 
 #include <stdlib.h>
+#include <string.h>
 #include "curses.h"
 #include "rogue.h"
 
@@ -23,8 +24,8 @@
 /*
  * how much food does this ring use up?
  */
-ring_eat(hand)
-register int hand;
+int
+ring_eat(int hand)
 {
     if (cur_ring[hand] == NULL)
 	return 0;
@@ -48,8 +49,8 @@
     return 0;
 }
 
-ring_on(item)
-register struct linked_list *item;
+void
+ring_on(struct linked_list *item)
 {
     register struct object *obj;
     register int save_max;
@@ -111,8 +112,7 @@
  * print ring bonuses
  */
 char *
-ring_num(obj)
-register struct object *obj;
+ring_num(struct object *obj)
 {
     static char buf[5];
 
@@ -146,7 +146,8 @@
 /* 
  * Return the effect of the specified ring 
  */
-ring_value(type)
+int
+ring_value(int type)
 {
     int result = 0;