Unfortunally I have just one A2 mini, but I have a Zeus Lightning and some old Gridseeds.
I connected the other miners to the USB ports of the A2's raspberry, and this pi is able to run the different cgminers synchronously.
I also voltmodded the A2 boards with 12,4K resistors, and this decreases the HW errors of the chips much.
Thank you for your howto in this topic, this helped me for my modding. Not the first voltmod i did, and everything went smooth.
If you have installed the libncurses5-dev package on your build system, you don't need to do extra work to get the ncurses support running.
The configure script should check for libncurses and build in the support if it's there. Just do "./configure" and then "make" like always, after the "sudo apt-get install libncurses5-dev".
I searched the net for another A2 mini or Terminator the last months, but i didn't find some for a real price yet. Still the best scrypt miner out there!
But now it's easter, and we need to do other things. No problem if you do this some days later, my system is running smooth for along time now.
For now I use the cgminer of the minereu image, with fullfills my needs. It just doesn't have the extra options of your build.
So have nice easter days!