sets variable now

Source/cmEnableTestingCommand.h

@@ -53,7 +53,7 @@ public:
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
-  virtual bool InitialPass(std::vector<std::string> const&) {return true;}
+  virtual bool InitialPass(std::vector<std::string> const&);
 
   /**
    * This is called at the end after all the information