title: failed to Cross compile Qt 5.6 on RPi 2 (fatal error: bcm_host.h: No such file or directory)
body: <p>I try to cross compile Qt 5.6 for RPi 2 by following this tutorial <a href="https://wiki.qt.io/RaspberryPi2EGLFS" rel="nofollow">https://wiki.qt.io/RaspberryPi2EGLFS</a> but I got this error</p>
  
  <pre><code>qeglfsbrcmintegration.cpp:35:22: fatal error: bcm_host.h: No such file or directory
   #include &lt;bcm_host.h&gt;
                        ^
  compilation terminated.
  make[6]: *** [.obj/qeglfsbrcmintegration.o] Error 1
  make[6]: Leaving directory `/home/hamed/raspi/qtbase/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm'
  make[5]: *** [sub-eglfs_brcm-make_first] Error 2
  make[5]: Leaving directory `/home/hamed/raspi/qtbase/src/plugins/platforms/eglfs/deviceintegration'
  make[4]: *** [sub-deviceintegration-make_first-ordered] Error 2
  make[4]: Leaving directory `/home/hamed/raspi/qtbase/src/plugins/platforms/eglfs'
  make[3]: *** [sub-eglfs-make_first] Error 2
  make[3]: Leaving directory `/home/hamed/raspi/qtbase/src/plugins/platforms'
  make[2]: *** [sub-platforms-make_first] Error 2
  make[2]: Leaving directory `/home/hamed/raspi/qtbase/src/plugins'
  make[1]: *** [sub-plugins-make_first] Error 2
  make[1]: Leaving directory `/home/hamed/raspi/qtbase/src'
  make: *** [sub-src-make_first] Error 2
  </code></pre>
  
  <p>What's wrong?</p>