Subject: Re: [boost] [Boost-maint] [context, config] Always setting address-model and architecture (Was: Conflicts when building libraries at root)
From: Jürgen Hunold (jhunold_at_[hidden])
Date: 2015-02-18 11:10:34
Am Mittwoch, 18. Februar 2015, 18:58:01 schrieb Vladimir Prus:
> On 02/18/2015 05:55 PM, Jürgen Hunold wrote:
> > I thought the correct way would be to move the architecture detection
> > upwards?
> That's roughly what I propose, too - but there are few further tweaks and
> > We would need something along those lines (from context/bulld/Jamfile.v2)
> > alias select_asm_context_sources
> > : asm_context_sources
> > : [ architecture.architecture ]
> > :
> > [ architecture.address-model ]
> > ;
> > in boostcpp.jam in order to detect the architecture everywhere. It would
> > then be helpfull to have sensible default values in order to shorten the
> > generated paths for those defaults.
> Right, so steps would be:
> 1. Move actual tests into config (we do need to have a few cpp files)
> 2. Move architecture.jam into either Boost.Build or boostcpp.jam
> 3. Make sure we don't generate extra path elements for default address model
> 4. Introduce a way to do these tests without requiring a bunch of .cpp
> files - sure Boost.Build can generate them on the fly.
> 5. Make these checks be automatic for all projects.
> It seems that 1-2 should solve the immediate problem, and 1-3 should be
> pretty good, although going all the way to 5 would be cool.
+1 for this plan.
And it would be cool if 3 enables me to use "feature.set-default address-model
: 64" on Windows 64 bit machines to enforce 64 bit builds as default. Or maybe
just auto-detect it...
> > Another solution would be to generate a "header-only" variant of
> > Boost.System and use this nearly everywhere. This would solve *lots* of
> > dependency problems...
> Not sure I have an opinion on that.
I just wanted to mention it. I've tried this way but it quickly gets dirty as
soon as one gets both "header-only" and library.
So -2 for this solution.
-- * Dipl.-Math. Jürgen Hunold ! * voice: ++49 4257 300 ! Fährstraße 1 * fax : ++49 4257 300 ! 31609 Balge/Sebbenhausen * jhunold_at_gmx.eu ! Germany
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