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diff --git a/cpukit/include/rtems/posix/mqueue.h b/cpukit/include/rtems/posix/mqueue.h
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+++ b/cpukit/include/rtems/posix/mqueue.h
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+/**
+ * @file
+ * 
+ * @brief POSIX Message Queues Private Private Support
+ *
+ * This include file contains all the private support information for
+ * POSIX Message Queues.
+ * 
+ * The structure of the routines is identical to that of POSIX
+ * Message_queues to leave the option of having unnamed message
+ * queues at a future date.  They are currently not part of the
+ * POSIX standard but unnamed message_queues are.  This is also
+ * the reason for the apparently unnecessary tracking of
+ * the process_shared attribute.  [In addition to the fact that
+ * it would be trivial to add pshared to the mq_attr structure
+ * and have process private message queues.]
+ *
+ * This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open
+ * time.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_POSIX_MQUEUE_H
+#define _RTEMS_POSIX_MQUEUE_H
+
+#include <signal.h>
+#include <mqueue.h> /* struct mq_attr */
+#include <rtems/score/coremsg.h>
+#include <rtems/score/object.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  @defgroup POSIX_MQUEUE_P Message Queues Private Support
+ *
+ *  @ingroup POSIXAPI
+ * 
+ */
+/**@{**/
+
+/*
+ *  Data Structure used to manage a POSIX message queue
+ */
+
+typedef struct {
+   Objects_Control             Object;
+   CORE_message_queue_Control  Message_queue;
+   bool                        linked;
+   uint32_t                    open_count;
+   struct sigevent             notification;
+   int                         oflag;
+}  POSIX_Message_queue_Control;
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*  end of include file */