}
static void
-psppire_dialog_action_two_sample_activate (GtkAction *a)
+psppire_dialog_action_two_sample_activate (PsppireDialogAction *a)
{
PsppireDialogAction *pda = PSPPIRE_DIALOG_ACTION (a);
PsppireDialogActionTwoSample *act = PSPPIRE_DIALOG_ACTION_TWO_SAMPLE (a);