Update to latest master (0.8-pre 4989799)

use std::libc::c_int;

use std::{vec,str};

use std::vec;

#[link_args = "-lcrypto"]

#[abi = "cdecl"]

    assert!(iter >= 1u);

    assert!(keylen >= 1u);

    do str::as_buf(pass) |pass_buf, pass_len| {

    do pass.as_imm_buf |pass_buf, pass_len| {

        do salt.as_imm_buf |salt_buf, salt_len| {

            let mut out = vec::with_capacity(keylen);