[gentoo-user] Choose a wireless access point

[William Kenworthy]

Is there a way force openrc and wpa_supplicant to map a particular
access point to an interface or fail?

I have two AP's (each on a different ssid) to connect to so have two
wifi interfaces - unfortunately they are not equal so I want wlan0 to
connect to only one particular AP, and wlan1 to the other ... reliably! 
I can manually force it to connect but invariably at the first glitch
they both end up connected to the same AP (usually the strongest which
is often not what I want :(

BillK