https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67910
--- Comment #6 from Guille <guille at cal dot berkeley.edu> --- Can confirm it does compile on gcc version 6.0.0 20151004.
guille at cal dot berkeley.edu Fri, 09 Oct 2015 22:40:20 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67910
--- Comment #6 from Guille <guille at cal dot berkeley.edu> --- Can confirm it does compile on gcc version 6.0.0 20151004.