With -Wc++-compat, gcc warns about 'and' even in contexts where it
poses absolutely no danger.
https://bugzilla.gnome.org/show_bug.cgi?id=726136
void gtk_widget_set_allocation (GtkWidget *widget,
const GtkAllocation *allocation);
-GDK_DEPRECATED_IN_3_0_FOR(gtk_widget_get_preferred_width and gtk_widget_get_preferred_height)
+GDK_DEPRECATED_IN_3_0_FOR(gtk_widget_get_preferred_width & gtk_widget_get_preferred_height)
+
void gtk_widget_get_requisition (GtkWidget *widget,
GtkRequisition *requisition);