compress_block
local void compress_block OF((deflate_state *s, ct_data *ltree,
compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
local void compress_block OF((deflate_state *s, ct_data *ltree,
compress_block(s, (ct_data *)static_ltree,
compress_block(s, (ct_data *)s->dyn_ltree,