Re: [Boost-users] thread no defined - issue

Subject: Re: [Boost-users] thread no defined - issue
From: Alexander Carôt (alexander_carot_at_[hidden])
Date: 2016-09-10 04:39:20

> # For the library variant that is not native on the build platform
> # an additional tag is applied:
> # boost_thread_pthread for the pthread variant on windows, and
> # boost_thread_win32 for the win32 variant (likely when built on cygwin).
> #
> # To request the pthread variant on windows, from boost root you would
> # say e.g:
> # bjam msvc-8.0 --with-thread install threadapi=pthread
> 
> How have you built boost and how your user has build boost?
> Which compile time flags are you using in your application and which is 
> using your user?
> Are you defining BOOST_THREAD_POSIX

No, not at all: I am neither compiling boost with additional flags nor am I defining anything in my sources. 

The user simply runs a binary, which tells that threads are not available and hence does not work at all.

So - maybe this is where the problem starts: Should I explicitely compile boost with thread-support (or even pthread-support) ?

> You can start by following the  Windows specific bugs (or whatever bug 
> as well) and pushing some PR for them. Once I have an idea of what kind 
> of work you can do, I can request to give you the needed rights to 
> commit your self any change and become a co-maintainer.

Perfect - right now I cannot estimate the time I have to work on it so this is a good way to figure it out.

Best

Alex

> >
> >
> >> Gesendet: Dienstag, 06. September 2016 um 19:00 Uhr
> >> Von: "Vicente J. Botet Escriba" <vicente.botet_at_[hidden]>
> >> An: boost-users_at_[hidden]
> >> Betreff: Re: [Boost-users] thread no defined - issue
> >>
> >> Le 06/09/2016 à 01:40, Gavin Lambert a écrit :
> >>> On 6/09/2016 07:14, Alexander Carôt wrote:
> >>>> one single (windows) user in my project community
> >>>> (http://www.soundjack.eu) has the following problem:
> >>>>
> >>>> #ifndef BOOST_THREAD_DEFINES_THREAD_ATTRIBUTES_NATIVE_HANDLE
> >>>>          cout << "THREAD IS NOT DEFINED" << endl;
> >>>> #endif
> >>>>
> >>>> This statement is true but only for him – on any other machine (Win,
> >>>> Linux and OSX) is works fine.
> >>> I haven't tried checking older versions of Boost to see if it's
> >>> different, but AFAICT in 1.60 this symbol is only defined when using
> >>> pthreads, which would not normally be the case on Windows unless
> >>> you're using Cygwin (or possibly mingw).
> >>>
> >>> They could try defining BOOST_THREAD_POSIX to force use of pthreads if
> >>> you require this for some reason, but this would have to be defined
> >>> when compiling Boost itself, any libraries that use Boost, and for the
> >>> application.
> >>>
> >>> If at all possible you should make your code work with both pthreads
> >>> and Win32 threads.
> >>>
> >> AFAIK Boost.Thread don't use the pthread API on Windows. This will imply
> >> a lot of changes that I can not test now as I don't have a Windows machine.
> >>
> >> If some one can spend some time trying to create a port to
> >> Win/cygwin/... I'll be open to take in account the patch.
> >>
> >> Best,
> >> Vicente
> >>
> >> P.S. I will need an experimented Windows guy that help me as
> >> co-maintainer for the Windows platform.
> >> _______________________________________________
> >> Boost-users mailing list
> >> Boost-users_at_[hidden]
> >> http://lists.boost.org/mailman/listinfo.cgi/boost-users
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> 
> 
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