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diff --git a/dirent/readdir_r.c b/dirent/readdir_r.c
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+/* readdir_r - Reentrant version of readdir.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library 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 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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 the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <dirent.h>
+
+/* Some systems have reentrancy problems with their `readdir'
+   implementation so they have an additional `readdir_r' version.  The
+   GNU version does not have these problems but for compatibility
+   reasons we provide this function.  It is simply a wrapper around
+   the normal function.
+
+   The actual definition of this functions varies very strong from
+   system to system.  We chose to follow the POSIX version.  */
+int
+readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result)
+{
+  *result = readdir (dirp);
+
+  return *result != NULL ? 0 : -1;
+}