$NetBSD$

 - const correctness demanded by recent gcc

--- xstring.h~	1997-02-21 11:52:27.000000000 +0000
+++ xstring.h
@@ -14,8 +14,8 @@ void changeall  (char s [], 
                  int  max_length_of_s,
                  char tmpalte     [],
                  char replacement []);
-char *substring (char s [], int from, int to);
-char *substring (char s [], int from); 
+char *substring (const char s [], int from, int to);
+char *substring (const char s [], int from); 
 int  submatch   (char s [], char p [], int &pos);
 void strcat     (char s [], int len, char app []);
 void delchar    (char s [], int pos);
