After building and installing dump1090-fa as shown in my post above and http://github.com/abcd567a/dump1090-fa-arch , yesterday I built and installed piaware on AlarmPi (Arch Linux ARM) on my RPi model2.
I had also to build following packages from source code, before I could succeed in building piaware package from source code. (These packages are NOT available in Arch Linux Repository).
tcltls tclx tcllib tcllauncher mlat-client
Although Piaware is feeding data to Flightaware, three green buttons are missing from my ADS-B stats page. Dont know why.