如何在Mac OS上构建简单的升级程序(Lion)

Question

步骤:
1.sudo port boost
安装在/ opt/local/boost中的boost文件,库文件在/ opt/local/lib中

2.使用XCode创建c ++项目

#include <iostream>
#include <boost/asio.hpp>
int main () {
    return 0;
}

3.设置XCode以
在"构建设置" - >"HEADER_SEARCH_PATHS"
中找到提升,在Debug和Release中添加路径/ opt/local/include

4."Build Settings" - >"LIBRARY_SEARCH_PATHS" - > add/opt/local/lib都用于调试和发布.

5.构建程序并失败.
错误消息,

Undefined symbols for architecture x86_64:
  "boost::system::generic_category()", referenced from:
  ___cxx_global_var_init1 in main.o
  ___cxx_global_var_init2 in main.o
  "boost::system::system_category()", referenced from:
  ___cxx_global_var_init3 in main.o
  boost::asio::error::get_system_category() in main.o
  "boost::asio::error::get_netdb_category()", referenced from:
  ___cxx_global_var_init5 in main.o <br>
  "boost::asio::error::get_addrinfo_category()", referenced from:
  ___cxx_global_var_init6 in main.o <br>
  "boost::asio::error::get_misc_category()", referenced from:
  ___cxx_global_var_init7 in main.o <br>
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我的程序错了吗？

Answer 1

你需要链接Boost.System,它应该在/opt/local/lib/libboost_system(带有一些后缀,取决于你如何构建boost)

将其添加到您的Xcode项目中.