#if (defined (ALLOW_VSTRESS_COST_CONTRIBUTION)
#if (defined (ALLOW_VSTRESS_COST_CONTRIBUTION))
#ifdef ALLOW_VSTRESS_COST_CONTRIBUTION
# undef ALLOW_VSTRESS_COST_CONTRIBUTION
# define ALLOW_VSTRESS_COST_CONTRIBUTION
defined (ALLOW_VSTRESS_COST_CONTRIBUTION)))