Problem installing T2K / ND280 ROOT on MacOS Sierra

See a “brutal fix”: T2K / ND280 ROOT compile for mac os 10.10.3
and more “gentle fixes” in the “[nd280-software] nd280 software on Ubuntu 16.04” thread (several posts) from January 2017: http://mailman.t2k.org/mailman/private/nd280-software/2017-January/056820.html
and then the continuation of this thread (again several posts) in February 2017: http://mailman.t2k.org/mailman/private/nd280-software/2017-February/056845.html
and finally also this post: http://mailman.t2k.org/mailman/private/nd280-software/2017-February/056891.html