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diff --git a/tests/mutex2e.c b/tests/mutex2e.c
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+/* 
+ * mutex2e.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ *      Pthreads-win32 - POSIX Threads Library for Win32
+ *      Copyright(C) 1998 John E. Bossom
+ *      Copyright(C) 1999,2003 Pthreads-win32 contributors
+ * 
+ *      Contact Email: rpj@callisto.canberra.edu.au
+ * 
+ *      The current list of contributors is contained
+ *      in the file CONTRIBUTORS included with the source
+ *      code distribution. The list can also be seen at the
+ *      following World Wide Web location:
+ *      http://sources.redhat.com/pthreads-win32/contributors.html
+ * 
+ *      This library is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU Lesser General Public
+ *      License as published by the Free Software Foundation; either
+ *      version 2 of the License, or (at your option) any later version.
+ * 
+ *      This 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
+ *      Lesser General Public License for more details.
+ * 
+ *      You should have received a copy of the GNU Lesser General Public
+ *      License along with this library in the file COPYING.LIB;
+ *      if not, write to the Free Software Foundation, Inc.,
+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Declare a static mutex object, lock it, 
+ * and then unlock it again.
+ *
+ * Depends on API functions: 
+ *	pthread_mutex_lock()
+ *	pthread_mutex_unlock()
+ */
+
+#include "test.h"
+ 
+pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
+
+int
+main()
+{
+  assert(mutex == PTHREAD_ERRORCHECK_MUTEX_INITIALIZER);
+
+  assert(pthread_mutex_lock(&mutex) == 0);
+
+  assert(mutex != PTHREAD_ERRORCHECK_MUTEX_INITIALIZER);
+
+  assert(mutex != NULL);
+
+  assert(pthread_mutex_unlock(&mutex) == 0);
+
+  assert(pthread_mutex_destroy(&mutex) == 0);
+
+  assert(mutex == NULL);
+
+  return 0;
+}