From 6e6722220613eae112a683e722a0e78d4b426455 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Mon, 3 Jul 2017 17:21:06 -0400
Subject: [PATCH] Information hiding.

---
 advent.h | 2 --
 misc.c   | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/advent.h b/advent.h
index c0e320e..71b281e 100644
--- a/advent.h
+++ b/advent.h
@@ -189,8 +189,6 @@ struct command_t {
 extern struct game_t game;
 extern struct settings_t settings;
 
-extern char* xstrdup(const char* s);
-extern void* xmalloc(size_t size);
 extern void packed_to_token(long, char token[]);
 extern long token_to_packed(const char token[]);
 extern void tokenize(char*, struct command_t *);
diff --git a/misc.c b/misc.c
index 30b3277..4fa173d 100644
--- a/misc.c
+++ b/misc.c
@@ -10,7 +10,7 @@
 #include "advent.h"
 #include "dungeon.h"
 
-char* xstrdup(const char* s)
+static char* xstrdup(const char* s)
 {
     char* ptr = strdup(s);
     if (ptr == NULL) {
@@ -22,7 +22,7 @@ char* xstrdup(const char* s)
     return (ptr);
 }
 
-void* xmalloc(size_t size)
+static void* xmalloc(size_t size)
 {
     void* ptr = malloc(size);
     if (ptr == NULL) {
-- 
2.31.1