Re: [Boost-users] (newbie) boost thread compile problems on Fedora 8

Subject: Re: [Boost-users] (newbie) boost thread compile problems on Fedora 8
From: Kishalay Kundu (kishalay.kundu_at_[hidden])
Date: 2009-07-16 10:24:52

The __vdso_clock_gettime problem seems to exist in the .a version. It
doesn't show up when I build a shared library (libxfem.so) that is
then loaded on runtime by a driver. This shared library has a class
that contains boost threads. The error occurs when I construct a local
thread (code snippet below). I do not know what the etiquette for
attaching code files on boost mailing list is, so I'm not attaching my
codes. But if you wish, I can send you the code files.

boost::thread st( &XFE_Scene::run, _scene ); // error occurs here
_threads[ 0 ] = boost::move( st );

When I try to load libxfem.so at run time, this is the error that I get.

/home/kish1/Projects/Ashwini2.0/trunk/Engine/SafeDriver/src/CoreManager.cpp_at_initialize,82:
fatal error: could not open libxfem.so
        /home/kish1/Projects/lib/libxfem.so: undefined symbol:
_ZTIN5boost6detail16thread_data_baseE

I greatly appreciate if you can decipher what exactly the problem is.
I have a version running on an Intel Mac that has boost 1.37
installed, and the same code runs perfectly. It was also ran properly
on a previous Fedora Core 7 version.

On Thu, Jul 16, 2009 at 9:35 AM, Christoph
Gysin<christoph.gysin_at_[hidden]> wrote:
>> Now, I write a small test program (given below). It gives me linker
>> errors with undefined references to pretty much every pthread symbol.
>
> Yes, boost::thread uses pthreads so you'll need to link against it.
>
>> If anyone wants I can paste all the errors in the next message. When I
>> add the -lpthread flag to the compile, it gives me an undefined
>> reference error with regards to __vdso_clock_gettime from
>> /lib64/libpthread.a.
>
> Looks like a known bug:
> http://sourceware.org/bugzilla/show_bug.cgi?id=5531
>
> Chris
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