Re: [jamboost] feature.jam: Need help with subfeatures

From: David Abrahams (dave_at_[hidden])
Date: 2002-12-02 08:30:25

Vladimir Prus <ghost_at_[hidden]> writes:

> I did as you suggested. But.. I call 'property.validate' on every
> property from command line, to get error report as soon as
> possible. I can't do that with "gcc-3.2", because "property.validate"
> does not recognize it. We still get an error, only later.
> Not sure what to do about it.

Me neither.

> >>Going back: what presicely mean 'value-string' parameter to
> >>'subfeature' and 'extend-subfeature.
> >
> >
> > I hope I've now clarified that.
>
> Not yet, I'm afraid. What means that "new subfeature values are valid for
> a specific value of main feature".
>
> if "<target-platform>mingw" is specific to gcc-2.95.2, then it sounds like
> there's more that two-level hierarchy.
>
> Do you mean that "valid" means:
>
> this subfeature can only be specified if the given values of
> main features (and some subfeatures) are present?

Exactly. There is no hierarchical relationship among subfeatures, but
some may exert dependencies on others.

-- 
David Abrahams
dave_at_[hidden] * http://www.boost-consulting.com
Boost support, enhancements, training, and commercial distribution