--- pgp/src/charset.c	2018/04/24 16:38:55	1.1.1.2
+++ pgp/src/charset.c	2018/04/24 16:39:38	1.1.1.3
@@ -6,9 +6,11 @@
  */
 
 #include <stdio.h>
+#include <string.h>
 #include "usuals.h"
 #include "language.h"
-#include "fileio.h"
+#include "charset.h"
+#include "system.h"
 
 #ifndef NULL
 #define	NULL	0
@@ -114,7 +116,7 @@ static unsigned char alt2intern[] = {
 int CONVERSION = NO_CONV;      /* None text file conversion at start time */
 
 unsigned char *ext_c_ptr;
-unsigned char *int_c_ptr;
+static unsigned char *int_c_ptr;
 
 #ifdef MSDOS
 char charset[64] = "cp850";
@@ -123,7 +125,7 @@ char charset[64] = "";
 #endif
 
 void
-init_charset()
+init_charset(void)
 {
 	ext_c_ptr = NULL;	/* NULL means latin1 or KOI8 (internal format) */
 	int_c_ptr = NULL;