Problem with a highly recursive function

[DougT]

The Ackermann function is non primitive recursive (See the wikipedia article). 
Is there any way to run ack(3,14) without using d:danger. Using 
-d:nimCallDepthLimit does not work since the value must be a 16 bit int.
    
    
    proc ack(m,n:int) : int =
      if m == 0 :
        return n+1
      elif n > 0 :
        return ack(m-1,ack(m,(n-1)))
      elif n == 0 :
        return ack(m-1,1)
      else:
        echo "ack: bad m or n value"
    
    
    Run