mergeq_alloc
mqp = mergeq_alloc(sizeof (mergeq_t));
mqp->mq_items = mergeq_alloc(sizeof (void *) * MERGEQ_DEFAULT_CAP);
mqp->mq_thrs = mergeq_alloc(sizeof (thread_t) *
items = mergeq_alloc(ncap * sizeof (void *));
extern void *mergeq_alloc(size_t);