Load Module

[<jimenezr ufrima imag fr>]

Hi,
i am working on a program which load module.
It was working, but, now i have upgraded all news librairies
and i cannot load module.

To understand, i made a small program and a loadable module.

class Module : public IPlugin{
    public:
	  	ModuleContact ();
	  	~ ModuleContact ();
	
	Glib::ustring getModuleName() { return "test";};
};

extern "C"{
	static IPlugin *get_module (){return new Module ;} 
}  


I use 
class IPlugin  : public sigc::trackable {
public:
	IPlugin()		{ }
	virtual	~IPlugin()	{ }
		
//-------------misc---------------------//
	static IPlugin *activeModule_ptr;
	
	virtual Glib::ustring getModuleName() { return "IPlugin";};

};


When i try to load the module,
	Glib::Module* loadmod = new 
Glib::Module(filename,Glib::MODULE_BIND_MASK);
i have no error 
but, when i try tu use the fonction get_symbol,
	bool test = loadmod->get_symbol ("getModuleName", cyril);
i find nothing :

This is the ouput:

looking for plugins ...
creating module with filename : ./libcontact.so ...
name :./libcontact.so
New module found.
getting symbol ... symbol not found !!!!
0 plug-in(s) found(s).


Do anything change recently in the process of module's loading ?

Thank

Remy