[boost] [iostreams] Last develop commit breaks release builds.

Subject: [boost] [iostreams] Last develop commit breaks release builds.
From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2016-11-07 11:46:10

FYI.. This commit:

<
https://github.com/boostorg/iostreams/commit/0a87de8932641a3896f49872a3c0340114079653
>

Is causing release build errors. See the CI logs for details..

<https://circleci.com/gh/boostorg/boost/2190>

Please address ASAP.

-- 
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