[Spirit Development] Bug in today's boost_trunk -- ambiguous operator >

I have a fairly large program that compiled just fine on boost_trunk
version 67416, but is now broken.  I traced to problem to an ambiguous
operator overload that occurs when both qi.hpp and fusion/tuple.hpp
are included.

The following code does not compile as of today, but should compile on
version 67416.


#include <boost/fusion/tuple.hpp> //including this file caused ambiguity errors
#include <boost/spirit/include/qi.hpp>
#include <string>

int main()
{
  static const boost::spirit::qi::rule<std::string::const_iterator> a;
  static const boost::spirit::qi::rule<std::string::const_iterator> b;
  boost::spirit::qi::rule<std::string::const_iterator> rule = a > b;
}

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