CALL_CHUNKFUN     169 compat/obstack.c   chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
CALL_CHUNKFUN     217 compat/obstack.c   chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
CALL_CHUNKFUN     254 compat/obstack.c   new_chunk = CALL_CHUNKFUN (h, new_size);