+void agflatten(Agraph_t * g, int flag);
typedef Agsubnode_t Agnoderef_t;
typedef Dtlink_t Agedgeref_t;
-#define FIRSTNREF(g) (agflatten(g), (Agnoderef_t*)(dtfirst((g)->n_seq)))
+#define FIRSTNREF(g) (agflatten(g,1), (Agnoderef_t*)(dtfirst((g)->n_seq)))
#define NEXTNREF(rep) ((Agnoderef_t*)((rep)->seq_link.right?(rep)->seq_link.right - offsetof(Agsubnode_t,seq_link):0))
#define PREVNREF(rep) ((rep)->seq_link.left) FIXME
#define NODEOF(rep) ((rep)->node)
-#define FIRSTOUTREF(g,sn) (agflatten(g), (sn)->out_seq)
-#define FIRSTINREF(g,sn) (agflatten(g), (sn)->in_seq)
+#define FIRSTOUTREF(g,sn) (agflatten(g,1), (sn)->out_seq)
+#define FIRSTINREF(g,sn) (agflatten(g,1), (sn)->in_seq)
#define NEXTEREF(sn,rep) ((rep)->right)
#define PREVEREF(sn,rep) ((rep)->left)
/* this is expedient but a bit slimey because it "knows" that dict entries of both nodes