架构x86_64的未定义符号:"_ SSLv2_ ..."； [英] Undefined symbols for architecture x86_64: "_SSLv2_ ..."

问题描述

我正在尝试为C ++中的Telegram Bot库构建一个小示例( https://github.com/reo7sp/tgbot-cpp#samples )，但是在链接时我得到以下输出:

I am trying to build a small example for a Telegram Bot library in C++ (https://github.com/reo7sp/tgbot-cpp#samples) but when linking I get this output:

Undefined symbols for architecture x86_64:
  "_SSLv2_client_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in libTgBot.a(HttpClient.cpp.o)
  "_SSLv2_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in libTgBot.a(HttpClient.cpp.o)
  "_SSLv2_server_method", referenced from:
      boost::asio::ssl::context::context(boost::asio::ssl::context_base::method) in libTgBot.a(HttpClient.cpp.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

使用此命令:

g++ -std=c++11 main.cpp -l boost_system -l boost_iostreams -l boost_unit_test_framework -l boost_exception -l TgBot -l pthread -l ssl -l crypto -L/usr/local/opt/openssl/lib -I/usr/local/opt/openssl/include

我已经安装了openssl 1.0.2:我必须获得2.x版本吗?我无法通过自制软件找到它(我的系统是OSX 10.9.5)...对于新手问题，感到抱歉.

I have openssl 1.0.2 installed: do I have to get a 2.x version? I can't find it with homebrew (my system is OSX 10.9.5)... sorry for the newbie question.

推荐答案

1. brew install openssl

打开~/.bash_profile

添加

export PATH="/usr/local/opt/openssl/bin:$PATH"
export LDFLAGS="-L/usr/local/opt/openssl/lib"
export CPPFLAGS="-I/usr/local/opt/openssl/include"

1. 来源〜/.bash_profile

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