[Nanopi Neo with 433Mhz devices (WiringNP and rfoutlet)]

I'm running an updated armbian stretch mainline on a nanopi neo and hitting a wall where I thought there would be no obstacles in my path. 

 

I'm using  433Mhx Tx and Rx devices so I'm building WiringNP (from FriendlyArm) and rfoutlet (from github.com/timleland/rfoutlet.git).  I'm getting errors such as wiringPi ISR: Not implemented when running RFSniffer. [This is the current error, it's been one after another].

 

My mind is muddled at the moment since I've done this kind of thing several times in the past on other devices including the Orange Pi Zero.  Can someone tell me if this is me, or if it's a NanoPi Neo-thing?  Shouldn't this be straight-forward?

 

cat /etc/armbian-release
# PLEASE DO NOT EDIT THIS FILE
BOARD=nanopineo
BOARD_NAME="NanoPi Neo"
BOARDFAMILY=sun8i
VERSION=5.65
LINUXFAMILY=sunxi
BRANCH=next
ARCH=arm
IMAGE_TYPE=stable
BOARD_TYPE=conf
INITRD_ARCH=arm
KERNEL_IMAGE_TYPE=zImage

 

lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 9.5 (stretch)
Release:        9.5
Codename:       stretch