[boost] [system] Heads up: Breaking changes

Subject: [boost] [system] Heads up: Breaking changes
From: Beman Dawes (bdawes_at_[hidden])
Date: 2010-05-30 13:17:04

Changeset 62313 brings Boost.System into closer conformance with the
C++0x working paper (and FCD) with regard to the system_category and
generic_category interface. Because system_category and
generic_category change from constants to functions returning
references, this is a breaking change. The fix is to change uses of
"system_category" to "system_category()", and "generic_category" to
"generic_category()".

See https://svn.boost.org/trac/boost/changeset/62313

AFAIK, the only Boost library this change breaks is filesystem. The
changeset includes fixes for it. Asio also uses System, but in a way
that does not break AFAICT.  Before committing the change, I tested
system, filesystem, and asio locally on Windows and Linux. But given
the possibility of unintended consequences, I thought a heads up to
the list might be useful.

I'll try to keep a close eye on regression tests as they cycle, but if
anyone has any problems, please let me know.

Thanks,

--Beman