Error compiling notebook example

[Chun Yang <achunyang2010 gmail com>]

Hello,

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I am have a compiling error when compiling the notebook example on the following web-page.
       http://library.gnome.org/devel/gtkmm-tutorial/unstable/sec-multi-item-containers.html.en#sec-notebook

This is offendinf code:

  m_Notebook.signal_switch_page().connect(sigc::mem_fun(*this,
              &ExampleWindow::on_notebook_switch_page) );

Here is the compilation errors:
**********************************************************************************************
[chun localhost notebook]$ make
g++ -o obj/Linux/examplewindow.o -c -Iinc `pkg-config gtkmm-2.4 --cflags` src/examplewindow.cpp
In file included from /usr/include/sigc++-2.0/sigc++/functors/slot.h:7,
                 from /usr/include/sigc++-2.0/sigc++/signal_base.h:28,
                 from /usr/include/sigc++-2.0/sigc++/signal.h:8,
                 from /usr/include/sigc++-2.0/sigc++/sigc++.h:23,
                 from /usr/include/glibmm-2.4/glibmm/signalproxy.h:13,
                 from /usr/include/glibmm-2.4/glibmm/objectbase.h:23,
                 from /usr/include/glibmm-2.4/glibmm/wrap.h:26,
                 from /usr/include/glibmm-2.4/glibmm/containerhandle_shared.h:25,
                 from /usr/include/glibmm-2.4/glibmm/arrayhandle.h:23,
                 from /usr/include/glibmm-2.4/glibmm.h:27,
                 from /usr/include/gtkmm-2.4/gtkmm.h:29,
                 from inc/examplewindow.h:4,
                 from src/examplewindow.cpp:2:
/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h: In member function ‘typename sigc::adaptor_functor<T_functor>::deduce_result_type<T_arg1, T_arg2, void, void, void, void, void>::type sigc::adaptor_functor<T_functor>::operator()(T_arg1, T_arg2) const [with T_arg1 = GtkNotebookPage* const&, T_arg2 = const unsigned int&, T_functor = sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>]’:
/usr/include/sigc++-2.0/sigc++/functors/slot.h:173:   instantiated from ‘static T_return sigc::internal::slot_call2<T_functor, T_return, T_arg1, T_arg2>::call_it(sigc::internal::slot_rep*, typename sigc::type_trait<T_arg3>::take, typename sigc::type_trait<T_arg4>::take) [with T_functor = sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>, T_return = void, T_arg1 = GtkNotebookPage*, T_arg2 = unsigned int]’
/usr/include/sigc++-2.0/sigc++/functors/slot.h:180:   instantiated from ‘static void* (* sigc::internal::slot_call2<T_functor, T_return, T_arg1, T_arg2>::address())(void*) [with T_functor = sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>, T_return = void, T_arg1 = GtkNotebookPage*, T_arg2 = unsigned int]’
/usr/include/sigc++-2.0/sigc++/functors/slot.h:607:   instantiated from ‘sigc::slot2<T_return, T_arg1, T_arg2>::slot2(const T_functor&) [with T_functor = sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>, T_return = void, T_arg1 = GtkNotebookPage*, T_arg2 = unsigned int]’
/usr/include/sigc++-2.0/sigc++/functors/slot.h:1184:   instantiated from ‘sigc::slot<T_return, T_arg1, T_arg2, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::slot(const T_functor&) [with T_functor = sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>, T_return = void, T_arg1 = GtkNotebookPage*, T_arg2 = unsigned int]’
src/examplewindow.cpp:30:   instantiated from here
/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:103: error: no match for call to ‘(sigc::bound_mem_functor2<void, ExampleWindow, Gtk::Widget*, unsigned int>) (GtkNotebookPage* const&, const unsigned int&)’
/usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1916: note: candidates are: T_return sigc::bound_mem_functor2<T_return, T_obj, T_arg1, T_arg2>::operator()(typename sigc::type_trait<T_arg3>::take, typename sigc::type_trait<T_arg4>::take) const [with T_return = void, T_obj = ExampleWindow, T_arg1 = Gtk::Widget*, T_arg2 = unsigned int]
/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:103: error: return-statement with a value, in function returning 'void'
make: *** [obj/Linux/examplewindow.o] Error 1
[chun localhost notebook]$
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Thanks,
Chun