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diff --git a/cpukit/posix/src/mutexlock.c b/cpukit/posix/src/mutexlock.c
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+/*
+ * COPYRIGHT (c) 1989-2007.
+ * 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.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <pthread.h>
+
+#include <rtems/system.h>
+#include <rtems/score/coremutex.h>
+#include <rtems/score/watchdog.h>
+#if defined(RTEMS_MULTIPROCESSING)
+#include <rtems/score/mpci.h>
+#endif
+#include <rtems/posix/mutex.h>
+#include <rtems/posix/priority.h>
+#include <rtems/posix/time.h>
+
+/*PAGE
+ *
+ * 11.3.3 Locking and Unlocking a Mutex, P1003.1c/Draft 10, p. 93
+ *
+ * NOTE: P1003.4b/D8 adds pthread_mutex_timedlock(), p. 29
+ */
+
+int pthread_mutex_lock(
+ pthread_mutex_t *mutex
+)
+{
+ return _POSIX_Mutex_Lock_support( mutex, true, THREAD_QUEUE_WAIT_FOREVER );
+}