Executing C++ before and after main()

[fullmetalcoder]

I've made this trick :

// GlobalClass.h
 
class GlobalClass
{
  static GlobalClass * m_Instance;
  public :
    GlobalClass();
    ~GlobalClass();
 
   // here stuff, if needed...
};

// GlobalClass.h

class GlobalClass
{
  static GlobalClass * m_Instance;
  public :
    GlobalClass();
    ~GlobalClass();

   // here stuff, if needed...
};

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This is very similar to singleton pattern and something used by Qt (apart from the fact that it's probably not thread safe) : Q_GLOBAL_STATIC(TYPE, NAME) macro defined in qtglobal.h

However it does not solve my problem because it won't be called BEFORE ALL STATIC CONSTRUCTORS of the program and attached libraries...