The current 'master' has bugfixes that should clear these. However I haven't issued a bugfix release as we will probably release V 1.3.9 long before GCC 6 becomes a done-deal, and I don't want to create unnecessary churn.
-- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.