On Sun, Aug 3, 2014 at 10:55 PM, Eric Niebler <eniebler@boost.org> wrote:

We've created a second release candidate to fix a few issues. The three
fixes since RC1 are listed at the end of this mail.

...
=== Changes Since RC1 ===

...
Boost.System broken on cygwin, local_free_on_destruction not defined.
https://github.com/boostorg/system/pull/4

Downloaded RC2 on Windows, and tested the above change with cygwin/gcc, mingw/gcc, VC++ 10, 11, and 12. All boost.system tests passed.

Downloaded RC2 on Linux, and tested the above change with gcc. All boost.system tests passed.

--Beman