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Subject: Re: [boost] [wave] preprocess fails using b2
From: Barend Gehrels (barend_at_[hidden])
Date: 2014-06-28 05:11:27


Op 28 jun. 2014 om 09:37 heeft "Fletcher, John P" <j.p.fletcher_at_[hidden]> het volgende geschreven:

> On Friday 27 June 2014 19:53:18 Fletcher, John P wrote:
>> I have been using b2 to build the preprocessed files for boost phoenix.
>> When I try to do this it now fails with a failure to build thread.cpp
>>> Please advise me what to do.
>> Check that you completely updated all submodules, core and utility in
>> particular. If they are fully updated I suspect you may need to remove
>> $BOOST_ROOT/boost and run 'b2 headers'.
> I have done that and it still fails. On closer inspection the failure is related to boost/bind in some way:
> In file included from ../../../boost/bind/bind.hpp:25:0,
> from ../../../boost/bind.hpp:22,
> from ../../../boost/thread/detail/thread.hpp:29,
> from ../../../boost/thread/thread_only.hpp:22,
> from ../../../libs/thread/src/pthread/thread.cpp:11:
> ../../../boost/ref.hpp:32:25: error: redefinition of ‘class boost::reference_wrapper<T>’
> ../../../boost/core/ref.hpp:59:25: error: previous definition of ‘class boost::reference_wrapper<T>’
> John
> Further information: thread was changed on 9 June 2014 to use core versions of files.
> It is clear reading the codes that boost/core/ref.hpp is a recent (2014) development of boost/ref.hpp. They have different include protection but are not able to work together as they both define the same structure (see error messages) above.

Did you use:

git submodule update --init

before removing boost and running b2 headers?
It solved similar problems for me.

Sent from iPad.
Barend Gehrels

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