title: Boost asio link error
body: <p>Im trying to use boost asio in my project.
  I downloaded boost 1.62, build it with commands:</p>
  
  <p><code>b2 toolset=msvc-14.0 address-model=64 architecture=x86 link=static threading=multi runtime-link=shared --build-type=minimal stage --stagedir=stage/x64 
  b2 toolset=msvc-14.0 address-model=32 architecture=x86 link=static threading=multi runtime-link=shared --build-type=minimal stage --stagedir=stage/win32
  </code></p>
  
  <p>I have included my boost folded in <code>Additional Include Directories</code>, added <code>Additional Library Directories</code>, and added </p>
  
  <pre><code>Ws2_32.lib
  Mswsock.lib
  libboost_system-vc140-mt-gd-1_62.lib
  libboost_regex-vc140-mt-gd-1_62.lib
  </code></pre>
  
  <p>to my additional dependencies list. 
  But my programm with boost\asio.hpp included dont want to compile.</p>
  
  <p>This are the first errors I get:</p>
  
  <p>1>boost_1_62_0\boost\asio\detail\impl\socket_ops.ipp(197): error C3861: 'GetAcceptExSockaddrs': identifier not found
  1>boost_1_62_0\boost\asio\detail\impl\socket_ops.ipp(217): error C2065: 'SO_UPDATE_ACCEPT_CONTEXT': undeclared identifier
  1>boost_1_62_0\boost\asio\detail\impl\socket_ops.ipp(1644): error C2065: 'SO_CONNECT_TIME': undeclared identifier</p>
  
  <p>I have no idea what I missed, I redownloaded and rebuilded boost several times...</p>