    obstack_free      181 libglibc/obstack.h void obstack_free (struct obstack *obstack, void *block);
    obstack_free      391 libglibc/obstack.h    else (obstack_free) (__o, __obj); })
    obstack_free      485 libglibc/obstack.h    : (((obstack_free) ((h), (h)->temp + (char *) (h)->chunk), 0), 0)))
    obstack_free      114 libutil/pool.c 	obstack_free(&pool->obstack, pool->first_object);
    obstack_free      124 libutil/pool.c 	obstack_free(&pool->obstack, NULL);