--- a/srogue/encumb.c	Thu Jan 28 18:55:47 2016 -0500
+++ b/srogue/encumb.c	Sun Jan 31 13:45:07 2016 -0500
@@ -10,14 +10,19 @@
  * See the file LICENSE.TXT for full copyright and licensing information.
  */
 
+#include <string.h>
 #include "rogue.h"
 #include "rogue.ext"
 
+int packweight(void);
+int pack_vol(void);
+
 /*
  * updpack:
  *	Update his pack weight and adjust fooduse accordingly
  */
-updpack()
+void
+updpack(void)
 {
 	reg int topcarry, curcarry;
 
@@ -44,7 +49,8 @@
  * packweight:
  *	Get the total weight of the hero's pack
  */
-packweight()
+int
+packweight(void)
 {
 	reg struct object *obj;
 	reg struct linked_list *pc;
@@ -72,8 +78,8 @@
  * itemweight:
  *	Get the weight of an object
  */
-itemweight(wh)
-struct object *wh;
+int
+itemweight(struct object *wh)
 {
 	reg int weight;
 
@@ -97,7 +103,8 @@
  * pack_vol:
  *	Get the total volume of the hero's pack
  */
-pack_vol()
+int
+pack_vol(void)
 {
 	reg struct object *obj;
 	reg struct linked_list *pc;
@@ -115,8 +122,8 @@
  * itemvol:
  *	Get the volume of an object
  */
-itemvol(wh)
-struct object *wh;
+int
+itemvol(struct object *wh)
 {
 	reg int volume, what, extra;
 
@@ -139,9 +146,10 @@
  * playenc:
  *	Get hero's carrying ability above norm
  */
-playenc()
+int
+playenc(void)
 {
-	reg estr = him->s_ef.a_str;
+	reg int estr = him->s_ef.a_str;
 	if (estr >= 24)
 		return 3000;
 	switch(him->s_ef.a_str) {
@@ -174,7 +182,8 @@
  * totalenc:
  *	Get total weight that the hero can carry
  */
-totalenc()
+int
+totalenc(void)
 {
 	reg int wtotal;
 
@@ -192,8 +201,8 @@
  * whgtchk:
  *	See if the hero can carry his pack
  */
-wghtchk(fromfuse)
-int fromfuse;
+void
+wghtchk(int fromfuse)
 {
 	reg int dropchk, err = TRUE;
 	reg char ch;
@@ -231,7 +240,8 @@
  * 			 0 hit for medium pack weight
  *			-1 hit for heavy pack weight
  */
-hitweight()
+int
+hitweight(void)
 {
 	return(2 - foodlev);
 }