undefined references during compilation

[nico <nicmgaje sp zrz tu-berlin de>]

Hey to all,

trying to compile my balsa and had allready a lot of fun

my errors:

filter-edit-callbacks.o: warning: previous common is here
address-book.o: In function `ab_gnomecard_cb':
/oma2/down/balsa-0.6.0/src/address-book.c:53: undefined reference to `gnome_execute_async'
address-book.o: In function `ab_cancel_cb':
/oma2/down/balsa-0.6.0/src/address-book.c:63: undefined reference to `gtk_widget_get_type'
/oma2/down/balsa-0.6.0/src/address-book.c:63: undefined reference to `gtk_type_check_object_cast'
/oma2/down/balsa-0.6.0/src/address-book.c:63: undefined reference to `gtk_widget_destroy'
address-book.o: In function `ab_okay_cb':

and doesn't stop before my xterm buffer is overfilled. I had a look for some
hints, but I wasn't very succesfull....

Thanks for bothering