The user-config.jam in https://github.com/kivy/python-for-android/tree/master/pythonforandroid/recipes/boost does not show up in the installed p4a recipes folder /home/paul/.local/lib/python2.7/site-packages/pythonforandroid/recipes/boost/
Perhaps .jam files have to be added to this array as well: kived@93fcf65