diff --git a/gl/strnlen1.h b/gl/strnlen1.h
--- a/gl/strnlen1.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
- Copyright (C) 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-#ifndef _STRNLEN1_H
-#define _STRNLEN1_H
-
-#include <stddef.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
- If no '\0' terminator is found in that many characters, return MAXLEN. */
-/* This is the same as strnlen (string, maxlen - 1) + 1. */
-extern size_t strnlen1 (const char *string, size_t maxlen);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _STRNLEN1_H */