title: Converting std::__cxx11::string to std::string
body: <p>I use c++11, but also some libraries that are not configured for it, and need some type conversion. In particular I need a way to convert <code>std::__cxx11::string</code> to regular <code>std::string</code>, but googling I can't find a way to do this and putting <code>(string)</code> in front does not work.</p>
  
  <p>If I do not convert I get linker errors like this:</p>
  
  <pre><code>undefined reference to `H5::CompType::insertMember(std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt; const&amp;, unsigned long, H5::DataType const&amp;) const'
  </code></pre>