https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77953
--- Comment #2 from James Cowgill <james410 at cowgill dot org.uk> --- This appears to be fixed with GCC 7. It is still broken on the GCC 6 branch though (using 6.4).
james410 at cowgill dot org.uk Wed, 16 Aug 2017 06:15:33 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77953
--- Comment #2 from James Cowgill <james410 at cowgill dot org.uk> --- This appears to be fixed with GCC 7. It is still broken on the GCC 6 branch though (using 6.4).