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diff --git a/pthread_self.c b/pthread_self.c
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+/*
+ * pthread_self.c
+ *
+ * Description:
+ * This translation unit implements miscellaneous thread functions.
+ *
+ * --------------------------------------------------------------------------
+ *
+ *	Pthreads-win32 - POSIX Threads Library for Win32
+ *	Copyright(C) 1998 John E. Bossom
+ *	Copyright(C) 1999,2002 Pthreads-win32 contributors
+ * 
+ *	Contact Email: rpj@ise.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
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+
+pthread_t
+pthread_self (void)
+     /*
+      * ------------------------------------------------------
+      * DOCPUBLIC
+      *      This function returns a reference to the current running
+      *      thread.
+      *
+      * PARAMETERS
+      *      N/A
+      *
+      *
+      * DESCRIPTION
+      *      This function returns a reference to the current running
+      *      thread.
+      *
+      * RESULTS
+      * 	     pthread_t	     reference to the current thread
+      *
+      * ------------------------------------------------------
+      */
+{
+  pthread_t self;
+
+#ifdef _UWIN
+	if(!ptw32_selfThreadKey)
+		return(NULL);
+#endif
+
+  self = (pthread_t) pthread_getspecific (ptw32_selfThreadKey);
+
+  if (self == NULL)
+    {
+      /*
+       * Need to create an implicit 'self' for the currently
+       * executing thread.
+       */
+      self = ptw32_new();
+
+      if (self != NULL)
+	{
+	  /*
+	   * This is a non-POSIX thread which has chosen to call
+	   * a POSIX threads function for some reason. We assume that
+	   * it isn't joinable, but we do assume that it's
+	   * (deferred) cancelable.
+	   */
+	  self->implicit = 1;
+	  self->detachState = PTHREAD_CREATE_DETACHED;
+	  self->thread = GetCurrentThreadId ();
+
+#ifdef NEED_DUPLICATEHANDLE
+	  /*
+	   * DuplicateHandle does not exist on WinCE.
+	   *
+	   * NOTE:
+	   * GetCurrentThread only returns a pseudo-handle
+	   * which is only valid in the current thread context.
+	   * Therefore, you should not pass the handle to
+	   * other threads for whatever purpose.
+	   */
+	  self->threadH = GetCurrentThread();
+#else
+	  if( !DuplicateHandle(
+			       GetCurrentProcess(),
+			       GetCurrentThread(),
+			       GetCurrentProcess(),
+			       &self->threadH,
+			       0,
+			       FALSE,
+			       DUPLICATE_SAME_ACCESS ) )
+	    {
+	      free( self );
+	      return (NULL);
+	    }
+#endif
+	}
+
+      pthread_setspecific (ptw32_selfThreadKey, self);
+    }
+
+  return (self);
+
+}				/* pthread_self */