Re: Deriving Widget Class, compile error

[Dominik Gabi <dkgispam gmail com>]

"ld returned 1 exit status" usually means that the linker is missing 
some information. In your case it does not know about the DerivedDialog 
type which is defined in deriveddialog.h.

I haven't tested it but the example should compile with
    g++ `pkg-config gtkmm-2.4 --cflags --libs` main.cc deriveddialog.h


Regards,
    Dominik.

On 06/19/2010 10:37 PM, Damianos Mylonakis wrote:
> Hello, i am experiencing a problem when trying to compile the example at
> http://library.gnome.org/devel/gtkmm-tutorial/unstable/sec-builder-using-derived-widgets.html.en 
>
>
> I compile with :
> g++ `pkg-config gtkmm-2.4 --cflags --libs` main.cc
>
> and i get this error :
> /tmp/ccm1AzsY.o: In function `void 
> Gtk::Builder::get_widget_derived<DerivedDialog>(Glib::ustring const&, 
> DerivedDialog*&)':
> main.cc:(.text._ZN3Gtk7Builder18get_widget_derivedI13DerivedDialogEEvRKN4Glib7ustringERPT_[void 
> Gtk::Builder::get_widget_derived<DerivedDialog>(Glib::ustring const&, 
> DerivedDialog*&)]+0x6e): undefined reference to `typeinfo for 
> DerivedDialog'
> main.cc:(.text._ZN3Gtk7Builder18get_widget_derivedI13DerivedDialogEEvRKN4Glib7ustringERPT_[void 
> Gtk::Builder::get_widget_derived<DerivedDialog>(Glib::ustring const&, 
> DerivedDialog*&)]+0x118): undefined reference to 
> `DerivedDialog::DerivedDialog(_GtkDialog*, Glib::RefPtr<Gtk::Builder> 
> const&)'
> collect2: ld returned 1 exit status
>
> I guess it is not a problem with the sources, but with the compilation?
> Any idea?
>
> Thank you,
> Damianos.
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