Re: [Boost-build] [bbv2] RFC: Repeated usage requirements.

From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-04-03 07:54:46

On Sunday 02 April 2006 04:42, David Abrahams wrote:

> > After thinking on it for a few days that is certainly one viable route.
> > Also the suggestion to use "build-requirements" for consistency is good.
> > Perhaps that should be added as an alias for "requirements". With that
> > in mind a few other possibilities spring to mind:
>
> I think we should keep experimenting.  For example:
>
>   lib foo : foo.cpp
>
>       self:      # the default
>         <define>COOL=1
>
>       all:       # or maybe "self+users:"
>         <define>ENABLE_LOG=1
>
>       users:
>         <link>shared:<define>BUILD_DLL=1
>     ;

Using ":" as last character of word to indicate something looks pretty 
confusing to me, because now you have ":" used in two different ways in the 
same invocation of a rule. Using:

  lib foo : foo.cpp 
  : self <define>COOL=1
  : all <define>ENABLE_LOG
  : users <link>shared:<define>BUILD_DLL=1
  ;

loks more clear to me.

- Volodya

-- 
Vladimir Prus
http://vladimir_prus.blogspot.com
Boost.Build V2: http://boost.org/boost-build2