if [ "$RK3_HOME" != "" ]; then
	echo "rk3 envorinment already set up"
else
	home_possibly_relative=`dirname ${BASH_SOURCE:-$0}`
	export RK3_HOME="`cd $home_possibly_relative && pwd`"
	export PATH=$RK3_HOME/bin:$PATH
	export LANG=en_NZ.utf-8
fi