boost root Jamfile.v2

From: David Abrahams (dave_at_[hidden])
Date: 2005-03-31 12:01:05

It contains:

project boost
: requirements <include>$(BOOST_ROOT)
# disable auto-linking for all targets here,
# primarily because it caused troubles with V2
<define>BOOST_ALL_NO_LIB=1
# Used to encode variant in target name. See the
# 'tag' rule below.
<tag>@$(__name__).tag
: usage-requirements <include>$(BOOST_ROOT)
: build-dir bin.v2 
;

why are we using BOOST_ROOT here? Shouldn't that be just:

project boost
: requirements <include>.
# disable auto-linking for all targets here,
# primarily because it caused troubles with V2
<define>BOOST_ALL_NO_LIB=1
# Used to encode variant in target name. See the
# 'tag' rule below.
<tag>@$(__name__).tag
: usage-requirements <include>.
: build-dir bin.v2 
;

??
-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com