Re: [Boost-build] Projects requirements and alternative selection

Subject: Re: [Boost-build] Projects requirements and alternative selection
From: Hartmut Kaiser (hartmut.kaiser_at_[hidden])
Date: 2009-04-16 09:08:26

> Vladimir Prus wrote:
> > On Wednesday 15 April 2009 16:38:28 Johan Nilsson wrote:
> >> Hi,
> >>
> >> I'm experiencing some "problems" with target selection. A simplified
> >> example:
> >>
> 
> [snip]
> 
> 
> >> Is this as expected - I had a gut feeling that the requirements set
> >> by "project" should be added to the "build" request for the bar lib
> >> in the above scenario?
> >>
> >> I've tried the above using Boost.Build from trunk as well as from
> >> 1.34.1. Toolset is msvc (set in user-config.jam).
> >
> > You are hitting:
> >
> > http://zigzag.lvk.cs.msu.su/boost.build/ticket/16
> >
> > I'd recommend that instead of alternatives, you use one target with
> > indirect conditional requirements that computes <file> property as
> > necessary.
> 
> Is that the recommended long-term approach as well? Seems a bit awkward
> to
> me.
> 
> Would it be possible for you to describe a bit more in detail what
> happens/should happen in the actual implementation and also list a
> couple of
> possible approaches to fix this? I could take a look at it.

Please excuse my ignorance, but exactly how am I supposed to fix (work
around) my problem?

Regards Hartmut