ARM: Enable the subnormal floats on QNX.

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
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   /**
    * Optional notification that a context has been disposed. V8 uses
    * these notifications to guide the GC heuristic. Returns the number
    * of context disposals - including this one - since the last time
    * V8 had a chance to clean up.
    */
   static int ContextDisposedNotification();
 
   /**
+   * Performs a per-thread setup. The embedder should invoke this method
+   * in all threads (including the main thread) before V8 is initialized.
+   *
+   * Currently, this method enables the subnormal float support on QNX/ARM.
+   * It is a no-op on all the other platforms.
+   */
+  static void PerformPerThreadSetup();
+
+  /**
    * Initialize the ICU library bundled with V8. The embedder should only
    * invoke this method when using the bundled ICU. Returns true on success.
    *
    * If V8 was compiled with the ICU data in an external file, the location
    * of the data file has to be provided.
    */
   static bool InitializeICU(const char* icu_data_file = NULL);
 
   /**
    * Sets the v8::Platform to use. This should be invoked before V8 is
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  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_