dt_idstack_t
dt_idstack_lookup(dt_idstack_t *sp, const char *name)
dt_idstack_push(dt_idstack_t *sp, dt_idhash_t *dhp)
dt_idstack_pop(dt_idstack_t *sp, dt_idhash_t *dhp)
extern dt_ident_t *dt_idstack_lookup(dt_idstack_t *, const char *);
extern void dt_idstack_push(dt_idstack_t *, dt_idhash_t *);
extern void dt_idstack_pop(dt_idstack_t *, dt_idhash_t *);
dt_idstack_t pcb_globals; /* stack of global identifier hash tables */