How odd, I've tried it again and can confirm that it now works with the suggested:
previous tinyxml (2.6.2-3) and the current kodi-rbp (15.2-1)
Thanks for the help there folks. Just in time as I'm testing a new USB DVB-T2 dongle this weekend and had nothing to run it on.
Now to test/fix my own packages.
Giving serious thought to trying the Archlinux ARM Rollback Machine and going back to life in November, until all this blows over. Just need to work out how to degrade all of my installed packages at once...
