Redundant project ID assignment

From: David Abrahams (dave_at_[hidden])
Date: 2004-12-27 04:38:37

The tutorial, in section bbv2.tutorial.libs, suggests first adding a
project id "foo" to top/util/foo/Jamfile:

project foo
: usage-requirements <include>.
;

And then adding to top/Jamfile:

use-project /foo : util/foo ;

These declarations seem to me to be entirely redundant -- they both
associate the project id /foo with the top/util/foo/Jamfile. Why should
both be needed? What currently happens if only one of them is supplied?

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com