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diff --git a/Source/cmTryRunCommand.h b/Source/cmTryRunCommand.h
new file mode 100644
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+++ b/Source/cmTryRunCommand.h
@@ -0,0 +1,76 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Insight Consortium. All rights reserved.
+  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmTryRunCommand_h
+#define cmTryRunCommand_h
+
+#include "cmStandardIncludes.h"
+#include "cmCommand.h"
+
+/** \class cmTryRunCommand
+ * \brief Specifies where to install some files
+ *
+ * cmTryRunCommand is used to test if soucre code can be compiled
+ */
+class cmTryRunCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone() 
+    {
+    return new cmTryRunCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args);
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() { return "TRY_RUN";}
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Try compiling and then running some code.";
+    }
+  
+
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+    return
+      "TRY_RUN(RUN_RESULT_VAR COMPILE_RESULT_VAR bindir srcfile <CMAKE_FLAGS <Flags>> <COMPILE_DEFINITIONS <flags>> <ARGUMENTS <arg1> <arg2>...>)\n"
+      "Try compiling a srcfile. Return the success or failure in ";
+      "COMPILE_RESULT_VAR. Then if the compile succeeded, run the ";
+      "executable and return the result in RUN_RESULT_VAR. ";
+    }
+  
+  cmTypeMacro(cmTryRunCommand, cmCommand);
+
+};
+
+
+#endif