2005-02-08  Bruno Haible  <address@hidden>  (tiny change)

	* src/kwset.h (kwsincr, kwsprep): Change return type to 'const char *'.
	* src/kwset.c (kwsincr, kwsprep): Likewise.

Index: src/kwset.c
===================================================================
RCS file: /cvsroot/grep/grep/src/kwset.c,v
retrieving revision 1.4
diff -u -r1.4 kwset.c
--- src/kwset.c	8 Feb 2001 15:06:36 -0000	1.4
+++ src/kwset.c	9 Feb 2005 10:20:40 -0000
@@ -1,5 +1,5 @@
 /* kwset.c - search for any of a set of keywords.
-   Copyright 1989, 1998, 2000 Free Software Foundation, Inc.
+   Copyright 1989, 1998, 2000, 2005 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -121,7 +121,7 @@
 
 /* Add the given string to the contents of the keyword set.  Return NULL
    for success, an error message otherwise. */
-char *
+const char *
 kwsincr (kwset_t kws, char const *text, size_t len)
 {
   struct kwset *kwset;
@@ -371,7 +371,7 @@
 
 /* Compute the shift for each trie node, as well as the delta
    table and next cache for the given keyword set. */
-char *
+const char *
 kwsprep (kwset_t kws)
 {
   register struct kwset *kwset;
Index: src/kwset.h
===================================================================
RCS file: /cvsroot/grep/grep/src/kwset.h,v
retrieving revision 1.2
diff -u -r1.2 kwset.h
--- src/kwset.h	8 Feb 2001 15:06:36 -0000	1.2
+++ src/kwset.h	9 Feb 2005 10:20:40 -0000
@@ -1,5 +1,5 @@
 /* kwset.h - header declaring the keyword set library.
-   Copyright (C) 1989, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1989, 1998, 2005 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -38,11 +38,11 @@
 /* Incrementally extend the keyword set to include the given string.
    Return NULL for success, or an error message.  Remember an index
    number for each keyword included in the set. */
-extern char *kwsincr PARAMS((kwset_t, char const *, size_t));
+extern const char *kwsincr PARAMS((kwset_t, char const *, size_t));
 
 /* When the keyword set has been completely built, prepare it for
    use.  Return NULL for success, or an error message. */
-extern char *kwsprep PARAMS((kwset_t));
+extern const char *kwsprep PARAMS((kwset_t));
 
 /* Search through the given buffer for a member of the keyword set.
    Return a pointer to the leftmost longest match found, or NULL if