Question

我正在尝试用C ++（https://github.com/reo7sp/tgbot-cpp#samples）为Telegram Bot库构建一个小例子，但是在链接时我得到了这个输出：

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

我安装了openssl 1.0.2：我必须得到2.x版本吗？我无法用自制软件找到它（我的系统是OSX 10.9.5）...对新手问题感到抱歉。

Answer 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"

来源〜/ .bash_profile

架构x86_64的未定义符号：＆＃34; _SSLv2_ ...＆＃34;

1 个答案: