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diff --git a/ACE/ace/Exception_Macros.h b/ACE/ace/Exception_Macros.h
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+// -*- C++ -*-
+
+// ============================================================================
+/**
+ * @file Exception_Macros.h
+ *
+ * $Id$
+ *
+ *   Writing code that is portable between platforms with or without
+ *   native C++ exceptions is hard.  The following macros offer some
+ *   help on this task.
+ *
+ *  @author Nanbor Wang <nanbor@cs.wustl.edu>
+ *  @author Aniruddha Gokhale  <gokhale@sahyadri.research.bell-labs.com>
+ *  @author Carlos O'Ryan  <coryan@uci.edu>
+ *  @author Krishnakumar B <kitty@cs.wustl.edu>, et al.
+ */
+// ============================================================================
+
+// Macros for handling exceptions.
+
+#ifndef ACE_EXCEPTION_MACROS_H
+#define ACE_EXCEPTION_MACROS_H
+
+#include /**/ "ace/pre.h"
+
+#include "ace/config-all.h"
+
+# if !defined (ACE_LACKS_PRAGMA_ONCE)
+#   pragma once
+# endif /* ACE_LACKS_PRAGMA_ONCE */
+
+// By default, if the compiler supports native exception handling, assume
+// CORBA also support native exception handling. But it can be disabled by
+// defining ACE_CORBA_HAS_EXCEPTIONS=0. If the compiler does not support
+// exceptions handling, make sure native exception handling is disabled.
+#if defined (ACE_HAS_EXCEPTIONS)
+#  if defined (ACE_CORBA_HAS_EXCEPTIONS)
+#    if (ACE_CORBA_HAS_EXCEPTIONS == 0)
+#      undef ACE_USES_NATIVE_EXCEPTIONS
+#    else /* ACE_CORBA_HAS_EXCEPTIONS != 0 */
+#      define ACE_USES_NATIVE_EXCEPTIONS
+#    endif /* ACE_CORBA_HAS_EXCEPTIONS == 0 */
+#  else
+#    define ACE_USES_NATIVE_EXCEPTIONS
+#    define ACE_CORBA_HAS_EXCEPTIONS
+#  endif /* ACE_CORBA_HAS_EXCEPTIONS */
+#else /* ! ACE_HAS_EXCEPTIONS */
+#  undef ACE_CORBA_HAS_EXCEPTIONS
+#  undef ACE_USES_NATIVE_EXCEPTIONS
+#endif /* ACE_HAS_EXCEPTIONS */
+
+#include /**/ "ace/post.h"
+
+#endif /* ACE_EXCEPTION_MACROS_H */