升压程序选项不适用于GLIBCXX_DEBUG [英] Boost Program Options won't work with GLIBCXX_DEBUG

问题描述

我有以下示例代码：

  #include< iostream> 
 #include< boost / program_options.hpp> 
 
 int main（int ac，char * av []）{
 //声明支持的选项。 
 boost :: program_options :: options_description desc（允许的选项）; 
 desc.add_options（）（help，产生帮助信息）; 
 
 boost :: program_options :: variables_map vm; 
 boost :: program_options :: store（boost :: program_options :: parse_command_line（ac，av，desc），vm）; 
返回0; 
} 
  

g ++ test.cpp -lboost_program_options 。
但是，如果我尝试激活GCC边界检查并调用 g ++ test.cpp -lboost_program_options -D_GLIBCXX_DEBUG ，则会引发以下链接器错误：

$在函数`boost :: program_options :: basic_command_line_parser< char> :: basic_command_line_parser（int，char const * const *，const char * ）'：
test.cpp :( .text._ZN5boost15program_options25basic_command_line_parserIECEC2EiPKPKc [_ZN5boost15program_options25basic_command_line_parserIcEC5EiPKPKc] + 0x97）：未定义的引用`boost :: program_options :: detail :: cmdline :: cmdline（std :: __ debug :: vector< std :: string，std :: allocator< std :: string>> const&）'
collect2：error：ld返回1退出状态

据我了解，链接器找不到函数 boost :: program_options :: detail :: cmdline :: cmdline（std :: __ debug： ：vector< std :: string，std :: allocator< std :: string>> const&），因为它的参数被替换通过调试向量而不是普通的 std :: vector 。但为什么会发生？有没有人知道一种解决方法，使Boost程序选项与 GLIBCXX_DEBUG ？

一起工作我使用以下系统：

• Debian Wheezy


• g ++（Debian 4.7.2-5）4.7.2
>

• libboost-all-dev 1.49.0.1，通过aptitude安装

感谢您的帮助

解决方案

错误消息在这里非常明确，链接器找不到符号

  boost :: program_options :: detail :: cmdline :: cmdline（std :: __ debug :: vector< std :: string，std :: allocator< std :: string>> const& amp ;）
  

请注意额外的 __ debug 命名空间，这意味着您正在构建 _GLIBCXX_DEBUG 。这是行不通的，因为你的包维护者没有用这个定义构建boost库，因此链接器错误。您有几个选项：

• 删除 _GLIBCXX_DEBUG 从任何翻译单元包含程序选项头。这可能需要进行一些重构，具体取决于启用迭代器调试时要解决的问题。


• 用 -D_GLIBCCX_DEBUG 构建boost库。 。这也可能不是微不足道的，虽然boost构建系统非常简单。

I have the following sample code:

#include <iostream>
#include <boost/program_options.hpp>

int main ( int ac, char *av[] ) {
    // Declare the supported options.
    boost::program_options::options_description desc("Allowed options");
    desc.add_options()("help", "produce help message");

    boost::program_options::variables_map vm;
    boost::program_options::store(boost::program_options::parse_command_line(ac, av, desc), vm);
    return 0;
}

It compiles fine using e.g. g++ test.cpp -lboost_program_options. However if I try to activate GCC bounds checking with the call g++ test.cpp -lboost_program_options -D_GLIBCXX_DEBUG, it throws the following linker error:

/tmp/ccZLdZ1g.o: In function `boost::program_options::basic_command_line_parser<char>::basic_command_line_parser(int, char const* const*)':
test.cpp:(.text._ZN5boost15program_options25basic_command_line_parserIcEC2EiPKPKc[_ZN5boost15program_options25basic_command_line_parserIcEC5EiPKPKc]+0x97): undefined reference to `boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::string, std::allocator<std::string> > const&)'
collect2: error: ld returned 1 exit status

As far as I understand the linker can't find the function boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::string, std::allocator<std::string> > const&), because its argument is replaced by a debug vector instead of normal std::vector. But why does this happen? And does anyone know a workaround, to make Boost Program Options work with GLIBCXX_DEBUG?

I use the following system:

• Debian Wheezy
• g++ (Debian 4.7.2-5) 4.7.2
• libboost-all-dev 1.49.0.1, installed via aptitude

Thanks for any help

解决方案

The error message is very clear here, the linker cannot find the symbol

boost::program_options::detail::cmdline::cmdline(std::__debug::vector<std::string, std::allocator<std::string> > const&)

note the additional __debug namespace, which implies you are building with _GLIBCXX_DEBUG. This won't work since your package maintainer did not build the boost libraries with this defined, hence the linker error. You have a few options

• remove _GLIBCXX_DEBUG from whatever translation units include the program options headers. This might require some refactoring depending on what you're trying to solve with iterator debugging enabled.
• build the boost libraries with -D_GLIBCCX_DEBUG. This also may not be trivial, though the boost build system is fairly straightforward.

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