recovering memory from complex terms

[Edmund GRIMLEY EVANS]

The following functions seem to consume space in the global stack:

PlTerm Mk_Proper_List(int size, PlTerm *arg)
PlTerm Mk_List       (PlTerm *arg)
PlTerm Mk_Compound   (int functor, int arity, PlTerm *arg)
PlTerm Mk_Callable   (int functor, int arity, PlTerm *arg)

Is there any way of recovering that space?

Or should I use a different approach for passing complex temporary
structures from C into Prolog without leaking memory?

Edmund