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From: Vladimir Prus (ghost_at_[hidden])
Date: 2003-06-09 09:16:26

David Abrahams wrote:
> "Konstantin M. Litvinenko" <gclbb-jamboost_at_[hidden]> writes:
> > Hello, Vladimir!
> > You wrote on Mon, 9 Jun 2003 16:42:24 +0400:
> >
> > VP> I think the idea is that "using msvc" and the like occurs in
> > VP> user-config.jam and site-config.jam -- and that those files don't
> > VP> declare toolsets which are not installed.
> >
> > I know that, but as for me it is bad solution, or maybe i have missed
> > somithing :). We use boost.Build as main build system. Some of projects
> > require only subset of libraries and compilers that should be in
> > user-config.jam. So when someone will do cvs up and try to build project,
> > it will not builds, coz of lack of libraries and compilers specified in
> > user-config.jam for all projects.
> That's a very good point. I think we may need a feature attribute
> something like "unchecked" which means that any value is acceptable.

Isn't that a bit too sloppy? I was thinking about

feature.extend-if-not-yet-extended-with-this-value toolset : msvc ;

This rule can be used in project-root.jam to make sure that <toolset>msvc is
valid, regardless of whether you have in configured, or not.

- Volodya


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