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diff --git a/StdLib/PosixLib/Gen/closedir.c b/StdLib/PosixLib/Gen/closedir.c
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+/** @file
+ Close an open directory.
+
+ Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ Copyright (c) 1983, 1993
+ Regents of the University of California. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. Neither the name of the University nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ NetBSD: closedir.c,v 1.15 2006/05/17 20:36:50 christos Exp
+ closedir.c 8.1 (Berkeley) 6/10/93
+**/
+#include <sys/cdefs.h>
+
+#include <namespace.h>
+#include <reentrant.h>
+#include <extern.h>
+#include <sys/types.h>
+
+#include <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifdef __weak_alias
+__weak_alias(closedir,_closedir)
+#endif
+
+/*
+ * close a directory.
+ */
+int
+closedir(DIR *dirp)
+{
+ int fd;
+
+ _DIAGASSERT(dirp != NULL);
+
+#ifdef _REENTRANT
+ if (__isthreaded)
+ mutex_lock((mutex_t *)dirp->dd_lock);
+#endif
+ fd = dirp->dd_fd;
+ dirp->dd_fd = -1;
+ dirp->dd_loc = 0;
+ free(dirp->dd_buf);
+
+#ifdef _REENTRANT
+ if (__isthreaded) {
+ mutex_unlock((mutex_t *)dirp->dd_lock);
+ mutex_destroy((mutex_t *)dirp->dd_lock);
+ free(dirp->dd_lock);
+ }
+#endif
+ free((void *)dirp);
+ return(close(fd));
+}