Re: [Boost-build] commandline <define>

From: Dirk Griffioen (dirk_at_[hidden])
Date: 2007-09-09 12:29:55

Hi Vladimir,

Vladimir Prus wrote:
> You bug report does not include neither a minimal
> project reproducing this behaviour, not the error message,
> so strictly speaking I cannot reproduce this. Please include
> that information for any subsequent bug reports.
>
>   
I will & sorry I didn't ...
> This time, I happen to know what's wrong. Say you have:
>
>         exe a : a.cpp helper ;
>         lib helper : helper.cpp ;
>
> And say
>
>         bjam toolset=gcc define=BLA
>
> Boost.Build first builds 'helper' with define=BLA.
> Then it builds a with define=BLA. That requires also building
> helper. Since 'define' is not a propagated feature, this
> requests a build of 'helper' without define. Now, we've built
> 'helper' twice, and build requests differed only in 'define'. Since
> define is not represented in target path, there's no way we can
> assign target paths to build versions of 'helper' and we error out.
>
>   
Thanks for the explanation!
>
> Please use the nightly build from boost.org/boost-build2; there, 'define'
> specified on command line applies to all attempts to build any targets.
>
>   
That might be a bit more than I bargained for, I took the zip from the 
boost build v2 page and built the exe, it works fine without the define 
on the commandline, but with it:
- bjam.exe starts using up to 500MB of memory (which is dropped eventually)
- it takes a really long time (>5 minutes or more)

I do have boost as part of the project, so having the define on all 
targets might be a bit much, I was more looking for just my own targets 
to have the flag ...

Thanks anyway!
> - Volodya
>
>
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>   

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