Re: [Boost-users] undefined reference to `__sync_fetch_and_add_4'

Subject: Re: [Boost-users] undefined reference to `__sync_fetch_and_add_4'
From: Birju Prajapati (Birju.Prajapati_at_[hidden])
Date: 2009-04-27 05:20:22

Another oddity I found with bjam was that supplying only
address-model=32 (without architecture=x86) would give me 64 bit
binaries.

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] [mailto:boost-users-
> bounces_at_[hidden]] On Behalf Of Vladimir Prus
> Sent: 24 April 2009 17:29
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] undefined reference to
`__sync_fetch_and_add_4'
> 
> Birju Prajapati wrote:
> 
> > I figured it out.
> >
> > It was an obscure, seemingly undocumented option to bjam:
> >
> > instruction-set=i686
> 
> You make it sound as if something in Boost.Build is not working
> and requires to specify this option. Can you explain why things
> were not working without that option? Note that all it does is
> add -march=i686
> 
> - Volodya
> 
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