Adding external layers to the Raspberry Pi

Now that we know how a layer works, we can add an existing external layer to our environment. To do this, we'll be working with meta-webserver ( http://layers.openembedded.org/layerindex/branch/master/layer/meta-webserver/ ) in order to include the famous web server, Monkey (http://monkey-project.com/).

As you know, the first step consists of modifying our conf/bblayers.conf file in order to add the path of the layer, as follows:

# LAYER_CONF_VERSION is increased each time  
build/conf/bblayers.conf 
# changes incompatibly 
LCONF_VERSION = "6" 
BBPATH = "${TOPDIR}" 
BBFILES ?= "" 
BBLAYERS ?= " \ 
  /home/packt/RASPBERRYPI/poky/meta \ 
  /home/packt/RASPBERRYPI/poky/meta-yocto \ 
  /home/packt/RASPBERRYPI/poky/meta-yocto-bsp \ 
  /home/packt/RASPBERRYPI/poky/meta-raspberrypi \ 
  /home/packt/RASPBERRYPI/poky/meta-openembedded/meta-webserver \ 
 
  " 
BBLAYERS_NON_REMOVABLE ?= "...