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diff --git a/intern/iksolver/intern/TNT/stopwatch.h b/intern/iksolver/intern/TNT/stopwatch.h
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+/**
+ * $Id$
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+
+/*
+
+*
+* Template Numerical Toolkit (TNT): Linear Algebra Module
+*
+* Mathematical and Computational Sciences Division
+* National Institute of Technology,
+* Gaithersburg, MD USA
+*
+*
+* This software was developed at the National Institute of Standards and
+* Technology (NIST) by employees of the Federal Government in the course
+* of their official duties. Pursuant to title 17 Section 105 of the
+* United States Code, this software is not subject to copyright protection
+* and is in the public domain.  The Template Numerical Toolkit (TNT) is
+* an experimental system.  NIST assumes no responsibility whatsoever for
+* its use by other parties, and makes no guarantees, expressed or implied,
+* about its quality, reliability, or any other characteristic.
+*
+* BETA VERSION INCOMPLETE AND SUBJECT TO CHANGE
+* see http://math.nist.gov/tnt for latest updates.
+*
+*/
+
+
+
+#ifndef STPWATCH_H
+#define STPWATCH_H
+
+// for clock() and CLOCKS_PER_SEC
+#include <ctime>
+
+namespace TNT
+{
+
+/*  Simple stopwatch object:
+
+        void    start()     : start timing
+        double  stop()      : stop timing
+        void    reset()     : set elapsed time to 0.0
+        double  read()      : read elapsed time (in seconds)
+
+*/
+
+inline double seconds(void)
+{
+    static const double secs_per_tick = 1.0 / CLOCKS_PER_SEC;
+    return ( (double) clock() ) * secs_per_tick;
+}
+
+
+class stopwatch {
+    private:
+        int running;
+        double last_time;
+        double total;
+
+    public:
+        stopwatch() : running(0), last_time(0.0), total(0.0) {}
+        void reset() { running = 0; last_time = 0.0; total=0.0; }
+        void start() { if (!running) { last_time = seconds(); running = 1;}}
+        double stop()  { if (running) 
+                            {
+                                total += seconds() - last_time; 
+                                running = 0;
+                             }
+                          return total; 
+                        }
+        double read()   {  if (running) 
+                            {
+                                total+= seconds() - last_time;
+                                last_time = seconds();
+                            }
+                           return total;
+                        }       
+                            
+};
+
+} // namespace TNT
+
+#endif
+    
+
+