Added m4 directory.
/* $Id$ */
digraph pdo_read {
start [fontname="Helvetica"]
start -> action_next_sync [fontname="Helvetica", label="First SM", weight=5]
action_next_sync [shape=point,label=""]
action_next_sync -> pdo_count [weight=5]
action_next_sync -> end
pdo_count [fontname="Helvetica"]
pdo_count -> action_next_pdo [weight=5]
action_next_pdo [shape=point,label=""]
action_next_pdo -> pdo [fontname="Helvetica", label="Next PDO", weight=5]
action_next_pdo -> action_next_sync [fontname="Helvetica", label="No more PDOs"]
pdo [fontname="Helvetica"]
pdo -> pdo_entries [weight=5]
pdo_entries [fontname="Helvetica"]
pdo_entries -> action_next_pdo
end [fontname="Helvetica"]
}