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Subject: Re: [boost] [thread] Can't use boost/thread/mutex.hpp without boost_system
From: Artyom Beilis (artyomtnk_at_[hidden])
Date: 2012-01-22 06:10:04

> From: Vicente J. Botet Escriba <vicente.botet_at_[hidden]> > Le 19/01/12 13:12, Artyom Beilis a écrit : >>> From: Anthony Williams<anthony.ajw_at_[hidden]> >>> On 18/01/12 14:01, Vicente Botet wrote: >>>>   I was not aware that Boost.Thread was working as a header only > library. >>> This was a much-requested feature, so I made sure that boost::mutex at > least was >>> usable header-only. >>> > Oh, I remember that now. >> So would this be fixed or I should switch to lightweight mutex? >> >> > As far as Boost.System is not-header-only we can not have both: > boost::mutex header-only and compliant with c++11. > As said before, I could let the user the possibility to set Boost.Thread > to don't use Boost.System via BOOST_THREAD_DONT_USE_SYSTEM. Artyom, > Anthony is this satisfactory for you? > > Best, > Vicente > > Actually I don't really like using macro BOOST_THREAD_DONT_USE_SYSTEM, unless the boost-thread with and without it are **binary-compatible**. If it can't be done I'd rather prefer that Boost.Thread would require explicit linking. There is already too much problems with Boost ABI. Consider one part of library included <boost/thread/mutex.hpp> with  BOOST_THREAD_DONT_USE_SYSTEM and some other without and linked with boost_thread. If this macro makes code binary incompatible it is bad and I don't think it should be used. There are enough problems with Boost API as it is and I don't think we would add more. In this case making lightweight mutexas part of public boost interface would be much better. I don't really care about linking with other library I just wanted to be consistent in my code. That's it.   Artyom Beilis -------------- CppCMS - C++ Web Framework: CppDB - C++ SQL Connectivity:>

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