Re: [jamboost] Re: Free feature problem

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-07-03 03:15:51

David Abrahams wrote:

> > But then you lose the ability to do some sanity checking.
> > You can type
> > <toolset>msvc
> > <toolset>mvsc
> >
> > in some condition (maybe even deeply nested)
>
> This makes no sense to me. Nothing you're showing looks like a
> conditional property.

As I've mentioned in another post, requirements in alternatives can be used to 
implement effect similiar to conditional properties:

lib a : msvc.cpp : <toolset>mvsc ;
lib a : gcc.cpp : <toolset>gcc ;

The first line has a typo, and the first alternative will never be selected, 
which would probably take some time to diagnose.

- Volodya