Comment 8 for bug 1695093

I uploaded a package w/ the patch from Comment #7 to ppa:dannf/test. Note that the tests took a *very* long time on arm64, with lots of timeouts:
  https://launchpad.net/~dannf/+archive/ubuntu/test/+build/13073558
This was not a problem for other architectures.

I did a local arm64 build of the *current* gcc-5 in xenial-updates, and observed the same symptoms - so I don't think this is a regression in my proposed fix. That said, this wasn't a problem with the current xenial-updates build:
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/security/+build/11132711

So it would appear that something has regressed for xenial since that upload.