Shadowsocks-libev: 编译安装时报错

[lizhaode]

在执行命令 ./autogen.sh && ./configure && make时，报错，错误如下

ss_local-aead.o: In function `aead_cipher_decrypt':
/root/shadowsocks-libev/src/aead.c:219: undefined reference to `crypto_aead_xchacha20poly1305_ietf_decrypt'
ss_local-aead.o: In function `aead_cipher_encrypt':
/root/shadowsocks-libev/src/aead.c:180: undefined reference to `crypto_aead_xchacha20poly1305_ietf_encrypt'
collect2: error: ld returned 1 exit status
Makefile:677: recipe for target 'ss-local' failed
make[2]: *** [ss-local] Error 1
make[2]: Leaving directory '/root/shadowsocks-libev/src'
Makefile:479: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/root/shadowsocks-libev'
Makefile:388: recipe for target 'all' failed
make: *** [all] Error 2

出错时，已经安装了LIBSODIUM和MBEDTLS，VPS是搬瓦工的KVM机器。内核版本是 Linux ubuntu 4.12.0-041200-generic ，操作系统是 Ubuntu 16.04.2 LTS

[Shadowhack0419]

你是不是按照教程装了libsodium-dev然后又源码安装了一遍?是的话重载系统，下次不要装dev包直接从教程上装完源码的就好

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[lizhaode]

@Shadowhack0419
他之前不是说安装这些依赖吗？
sudo apt-get install --no-install-recommends gettext build-essential autoconf libtool libpcre3-dev asciidoc xmlto libev-dev libudns-dev automake libmbedtls-dev libsodium-dev

我是先执行了这个，然后又按照他写的，下载了LIBSODIUM和MBEDTLS，编译安装了，然后make ss-libev就报错了

[Shadowhack0419]

@lizhaode 这边是作者写错的一点地方，当初装也卡了很久，libsodium-dev和mbedtls-dev就是教程中要求安装的libsodium1.0.13和mbedtls2.5.1如果事先装过dev再源码安装，会有问题。

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[lizhaode]

@Shadowhack0419 原来如此，多谢

[DawnLi-code]

重载系统有点粗暴，看问题应该可以：
apt-get purge libsodium-dev
apt-get autoclean
之类，然后再手动安装