gtk3: Prevent to define alias when Gtk::SearchBar#connect_entry does not to be defined.
gtk3: Prevent to define alias when Gtk::SearchBar#connect_entry does not to be defined.

kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2