#[no_mangle] pub unsafe extern "C" fn tdefl_compress_mem_to_output( buf: *const c_void, buf_len: usize, put_buf_func: Option<unsafe extern "C" fn(_: *const c_void, _: c_int, _: *mut c_void) -> i32>, put_buf_user: *mut c_void, flags: c_int) -> c_int