--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2007-06-10  Bruno Haible  <bruno@clisp.org>
 
+	* modules/unistr/u32-mbsnlen: New file.
+	* lib/unistr/u32-mbsnlen.c: New file.
+
 	* modules/unistr/u16-mbsnlen: New file.
 	* lib/unistr/u16-mbsnlen.c: New file.
 

new file mode 100644
--- /dev/null
+++ b/lib/unistr/u32-mbsnlen.c
@@ -0,0 +1,29 @@
+/* Count characters in UTF-32 string.
+   Copyright (C) 2007 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library 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.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+size_t
+u32_mbsnlen (const uint32_t *s, size_t n)
+{
+  return n;
+}

new file mode 100644
--- /dev/null
+++ b/modules/unistr/u32-mbsnlen
@@ -0,0 +1,23 @@
+Description:
+Count characters in UTF-32 string.
+
+Files:
+lib/unistr/u32-mbsnlen.c
+
+Depends-on:
+unistr/base
+
+configure.ac:
+
+Makefile.am:
+lib_SOURCES += unistr/u32-mbsnlen.c
+
+Include:
+"unistr.h"
+
+License:
+LGPL
+
+Maintainer:
+Bruno Haible
+