[boost] [modularization] Trying it out doesn't quite work?

Subject: [boost] [modularization] Trying it out doesn't quite work?
From: John Maddock (john_at_[hidden])
Date: 2013-10-20 12:49:40

OK I'm following https://svn.boost.org/trac/boost/wiki/TryModBoost

Git clone proceeds OK, and I seem to have everything I should have, likewise 
bootstrapping b2 proceeds OK.  But:

b2 headers

does nothing at all.

Trying:

b2 --with-regex

results in all the expected compile errors 'cos the headers aren't found.

What gives?

Thanks, John.

PS this is on Windows Vista.