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List:       boost-build
Subject:    Re: [Boost-build] Boost.Build V2 migration question
From:       Graham Bennett <graham-boost () simulcra ! org>
Date:       2007-10-26 8:11:41
Message-ID: 20071026081141.GF8118 () lamity ! org
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+main boost list to see if anyone there has an answer...

On Mon, Oct 22, 2007 at 04:59:49PM +0100, Graham Bennett wrote:
> Hi all,
> 
> I'm coming across Boost.Build V2 for the first time while working on
> building Boost 1.34.1, upgrading from 1.33.1.
> 
> I currently build boost from a driver makefile that invokes bjam with
> the correct options for each platform.  I do this to make my life easier
> since I have some easy ways to determine things like installation paths,
> include paths, compiler flags and preprocessor defines from within my
> driver makefile in a platform-independant way.  
> 
> It seems as though in V2 there has been a move away from passing
> configuration options via the command line, and the way that command
> line arguments is parsed means that adding something like
> "include=/foo/bar" (which was my initial guess) will end up as three
> different properties since it's split on the slashes, leading to errors
> about include having no value.
> 
> While in general I do think specifying options in files rather than on
> the command line is to be encouraged in order to promote reproducible
> builds, I do think it's important to have a way of overriding things on
> a per-invocation basis.  In my case I already have a way of achieving
> reproducible builds via my driver makefile system, so having a way of
> passing these options down to bjam at invocation is quite important.
> 
> So before I go any further I'd like to get confirmation that:
> 
>  - there's no way to pass this kind of option to bjam from the command
>    line anymore
> 
>  - is there any way to pass this kind of information via the environment
>    rather than the command line? 
> 
>  - the recommended way for me to configure boost from my driver makefile
>    would be to generate a separate jam file that bjam would then include
> for each platform.  Is this best done by generating site-config.jam?
> 
> cheers,
> 
> Graham
> 
> -- 
> Graham Bennett


Graham

-- 
Graham Bennett
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