title: Linking ROS library issue using _GLIBCXX_USE_CXX11_ABI
body: <p>I'm working in a project which uses ROS and WebRTC. </p>
  
  <p>To build both libraries, I have to define "WEBRTC_POSIX" and "_GLIBCXX_USE_CXX11_ABI=0".</p>
  
  <p>However, when I add "_GLIB_CXX_USE_CXX11_ABI=0" definition to compiler, I get unsatisfied link errors from ROS.</p>
  
  <p>I'm using Ubuntu 17.04, ROS Lunar, g++ 6.3 and cmake 3.7.2</p>
  
  <p>Is there any trouble with ROS and std=c++11?</p>