Problem with glade

[Uzytkownik <uzytkownik22 gazeta pl>]

#include <glade/glade.h>

void on_wgtelnet_destroy(GtkWidget *widget, gpointer user_data) {
        g_print("Dowidzenia");
        gtk_main_quit();
}

void on_bok_clicked(GtkWidget *widget, gpointer user_data) {
        gtk_main_quit();
}

int main(int argc, char **argv) {
        GladeXML *xml;

        gtk_init(&argc, &argv);

        xml = glade_xml_new("gtelnet.glade", NULL, NULL);

        glade_xml_signal_autoconnect(xml);

        gtk_main();
}

$ gcc main.c `pkg-config libglade-2.0 --cflags --libs`
$ ./a.out 
(a.out:5100): libglade-WARNING **: could not find signal handler
'on_bok_clicked'.

(a.out:5100): libglade-WARNING **: could not find signal handler
'on_wgtelnet_destroy'.

What's wrong?