[boost] Spirit 2 and backwards compatibity?

From: John Maddock (john_at_[hidden])
Date: 2008-05-27 12:41:12

I'm having trouble building an app that uses spirit from SVN Head with 
gcc-4.2 (Mingw32), I see:

In file included from 
c:\data\boost\boost\trunk/boost/spirit/home/classic/core/p
arser.hpp:14,
                 from 
c:\data\boost\boost\trunk/boost/spirit/home/classic/core.h
pp:29,
                 from 
c:\data\boost\boost\trunk/boost/spirit/include/classic_cor
e.hpp:11,
                 from c:\data\boost\boost\trunk/boost/spirit/core.hpp:21,
                 from main.cpp:17:
c:\data\boost\boost\trunk/boost/spirit/home/classic/core/scanner/scanner.hpp: 
In
 member function 'typename 
boost::detail::iterator_traits<IteratorT>::value_type
 boost::spirit::scanner<IteratorT, PoliciesT>::operator*() const':
c:\data\boost\boost\trunk/boost/spirit/home/classic/core/scanner/scanner.hpp:259
: error: 'iteration_policy_t' has not been declared

Any ideas?  Note that simply including spirit/core.hpp is enough to trigger 
this error.

Thanks, John.