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From: David Abrahams (gclbb-jamboost_at_[hidden])
Date: 2003-06-09 09:08:51

"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.

> Why does bjam so slow doing header and dependency scaning? I am waiting
> about 20 seconds while bjam do it on my projects. (Celeron 733).

Are you sure that's what's making it slow? It might be, but it might
just be spending time executing all the Jam code. Maybe you could
post a profile by invoking bjam with -d+10?

Dave Abrahams
Boost Consulting

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