--- a/rogue4/list.c	Fri Feb 26 17:30:30 2016 -0500
+++ b/rogue4/list.c	Wed Mar 02 21:28:34 2016 -0500
@@ -18,8 +18,8 @@
  * detach:
  *	Takes an item out of whatever linked list it might be in
  */
-_detach(list, item)
-register THING **list, *item;
+void
+_detach(THING **list, THING *item)
 {
     if (*list == item)
 	*list = next(item);
@@ -33,8 +33,8 @@
  * _attach:
  *	add an item to the head of a list
  */
-_attach(list, item)
-register THING **list, *item;
+void
+_attach(THING **list, THING *item)
 {
     if (*list != NULL)
     {
@@ -54,8 +54,8 @@
  * _free_list:
  *	Throw the whole blamed thing away
  */
-_free_list(ptr)
-register THING **ptr;
+void
+_free_list(THING **ptr)
 {
     register THING *item;
 
@@ -71,8 +71,8 @@
  * discard:
  *	Free up an item
  */
-discard(item)
-register THING *item;
+void
+discard(THING *item)
 {
     total--;
     free((char *) item);
@@ -83,7 +83,7 @@
  *	Get a new item with a specified size
  */
 THING *
-new_item()
+new_item(void)
 {
     register THING *item;