title: RaspberryPi Cross-GCC, bluetooth lib missing
body: <p>I am using Eclipse IDE and prebuild tool chain from <a href="https://github.com/raspberrypi/tools" rel="nofollow noreferrer">https://github.com/raspberrypi/tools</a> , compiler is arm-linux-gnueabihf for Raspberry Pi 3.
  I am trying to linked the bluetooth lib in project (-lbluetooth). 
  However, I am get below error </p>
  
  <p><code>/.../linux-gnueabihf/bin/ld can not find -lbluetooth.</code> </p>
  
  <p>Please let me how to fix this issue? Thanks in advance!</p>