(sub)project handling

From: Vladimir Prus (ghost_at_[hidden])
Date: 2001-11-28 09:27:51

Here are questions that I find important:

1. What will be the syntax for indentifying projects
project foo ;
and then
subproject foo/src ; or
subproejct src ; or
project foo/src ;

2. David has proposed that Jamfiles should be declarative: first some data is 
gathered and only then build instructions are generated. Is this sufficient 
for all uses? What if somebody wants simply to define some targets? 
Related problems is inclusion of top-level Jamfile. I've tried that to insure 
complete build from and subdir (which was not good idea), but if we have 
subproject requirements, we'd need some way to included Jamfiles on that path 
from top to current dir, without any side effects. Explicit target creation 
won't work with it, will it?

3. If declarative semantics is agreed upon, what data structures will we use.

4. (completely unrelated to the subject)
Is there a way for a module to define rules at global scope? To declare rule 
using dynamically computed name? I was thinking about a rule like 
"declare-main-type". E.g.
declare-main-type exe ...... 
could create global rule called exe.

- Volodya