bird and unnumbered interfaces

[Sörös Jozsef]

I suggest this correction in nest/iface.c to get bird handle interfaces 
with unnumbered and addresses correctly.
Best regards: Joseph

--- iface.c     2004-02-10 09:41:09.000000000 +0100
+++ nest/iface.c        2004-02-10 02:58:51.000000000 +0100
@@ -407,9 +407,13 @@

  WALK_LIST(a, i->addrs)
    {
-      if (!(a->flags & IA_SECONDARY) && (!b || a->scope > b->scope))
-       b = a;
-      a->flags &= ~IA_PRIMARY;
+      if (!(a->flags & IA_SECONDARY)
+                       && !(a->flags & IA_UNNUMBERED)
+                       && (!b || a->scope > b->scope))
+                       {
+                               b = a;
+               a->flags &= ~IA_PRIMARY;
+                       }
    }
  res = (b != i->addr);
  i->addr = b;