--- lib/libxview/textsw/es_file.c.orig	1993-06-29 07:17:34.000000000 +0200
+++ lib/libxview/textsw/es_file.c	2003-12-30 01:31:13.000000000 +0100
@@ -110,8 +110,13 @@ static char     sccsid[] = "@(#)es_file.
 
 
 extern int      errno, sys_nerr;
+#if (defined(BSD) && (BSD >= 199306))
+extern const char *const sys_err_list[];
+extern off_t	lseek();
+#else
 extern char    *sys_errlist[];
 extern long     lseek();
+#endif
 
 static void update_read_buf();  /* update the read buf if overlaps write buf */
 static Es_status es_file_commit();
