environment binding

From: David Abrahams (dave_at_[hidden])
Date: 2005-05-29 22:46:22

I just checked in changes to Boost.Jam that cause all environment
variables to be bound, verbatim, into the built-in .ENVIRON module.
Now we can write a real [ os.environ name ] rule instead of using
[ modules.peek : name ] to guess at environment variable settings, 
and later try to reconstitute the variable.

Enjoy,
-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com