неправильно полученный класс Gtk :: Toolbar_Helpers :: ToggleElem

У меня неправильно получен класс Gtk :: Toolbar_Helpers :: ToggleElem из
библиотеки gtkglextmm.

Кто-нибудь знаком с этими классами GNOME? Я не могу найти последнюю версию документов.

    //
// C++ Interface: tooltogglebutton
//
// Description:
//
//
// Author: Karsten Bohlmann <[email protected]>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef TOOLTOGGLEBUTTON_H
#define TOOLTOGGLEBUTTON_H

#include <gtkmm/toolbar.h>/**
provides Gtk::toolbar togglebutton with extra access methods

@author Karsten Bohlmann
*/
class ToolToggleButton : public Gtk::Toolbar_Helpers::ToggleElem
{
public:
ToolToggleButton(const Glib::ustring& text,
const SigC::Slot0<void> & callback,
const Glib::ustring& tooltip_text = Glib::ustring(),
const Glib::ustring& tooltip_private_text = Glib::ustring());
~ToolToggleButton();
void setActive (bool isActive);
};

#endif

вызывает следующие ошибки:

In file included from cellapp.h:27:0,
from cellapp.cpp:23:
tooltogglebutton.h:23:38: error: ‘Gtk::Toolbar_Helpers’ has not been declared
class ToolToggleButton : public Gtk::Toolbar_Helpers::ToggleElem::ToggleElem
^
tooltogglebutton.h:23:67: error: expected ‘{’ before ‘ToggleElem’
class ToolToggleButton : public Gtk::Toolbar_Helpers::ToggleElem::ToggleElem
^
tooltogglebutton.h:24:1: error: invalid type in declaration before ‘{’ token
{
^
tooltogglebutton.h:24:1: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11 [enabled by default]
tooltogglebutton.h:25:1: error: expected primary-expression before ‘public’
public:
^
tooltogglebutton.h:25:1: error: expected ‘}’ before ‘public’
tooltogglebutton.h:25:1: error: expected ‘,’ or ‘;’ before ‘public’
tooltogglebutton.h:30:22: error: expected constructor, destructor, or type conversion before ‘;’ token
~ToolToggleButton();
^
tooltogglebutton.h:32:1: error: expected declaration before ‘}’ token
};
^
make[2]: *** [cellapp.o] Error 1
make[2]: Leaving directory `/home/dave/src/cellumat3d/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/dave/src/cellumat3d'
make: *** [all] Error 2