Re: [jamboost] Development plan

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-04-18 09:14:40

----- Original Message -----
From: "Vladimir Prus" <ghost_at_[hidden]>

> > > There's also one interface question not addressed yet. I'd like to
> > > implement almost full project support for the first milestone. We
then
> > > need an ability to load other project's project-root.jam, so that
that
> > > file could forward declare project id that will be used later.
What
> > > syntax? Something like:
> > > use-project /path/to/my/project ;
> >
> > I think we defined some syntax in
> >
http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Boost.Bui
> > ld_Projects, but I'm not certain that we concluded our discussion.
Was
> > it moved to the jamboost list?
>
> We've discussed slightly different thing, namely how to associate
project-id
> with project location. Suppose I have a big external library. I could
write
>
> project big_lib/story_teller : $(BIG_LIB)/src/storyletter ;
> project big_lib/chess_player : $(BIG_LIB)/src/storyteller ;
>
> But this requires that I know internal structure of that lib, and what
if it
> changes? What I want is:
>
> use-project $(BIG_LIB) ;
>
> That should load project-root.jam located at $(BIG_LIB), which will
declare
> all project ids that might be of interest to users.

Isn't that simply:

project big_lib : $(BIG_LIB) ;

??

> Actually, there's a
> terrible confusion with the 'project' root. We'd need a word to denote
a
> collection of projects with the same project root.

I'm not certain of that. I don't want to restrict people to having all
projects under a single root. Top-level project IDs should be associated
with locations in the filesystem via the "project" rule. It should be
possible to override these associations in user.jam and/or site.jam, in
addition to setting them in project-root.jam.

-Dave