meta_p is a void *, so a variable that's of type void * can't be

meta_p is a void *, so a variable that's of type void * can't be
dereferenced directly.  Toss an ifdef around it for the moment and
allow this to compile.  This likely means that priority packets aren't
queued to the special high priority queue.  The maintainer of this
should look into the problem.

This is likely fallout from the netgraph migration to using a more
generic meta tag from the mbug recently.

Fixes: pc98 tinerbox