Boost Intrusive unordered_set broken in 1.48 with GCC in C ++ 11

Boost Intrusive unordered_set is broken if you use the Fedora 17 vanilla installation that comes with GCC 4.7 and Boost 1.48 and use C ++ 11 mode. On Fedora 16, which comes with GCC 4.6.2 and Boost 1.47, it works. This violates the real code, and it even violates the example in the official documentation :

#include <boost/intrusive/unordered_set.hpp>

using namespace boost::intrusive;

struct MyClass : public unordered_set_base_hook<>
{};

typedef unordered_set<MyClass>::bucket_type   bucket_type;
typedef unordered_set<MyClass>::bucket_traits bucket_traits2;

int main()
{
   bucket_type buckets[100];
   unordered_set<MyClass> uset(bucket_traits2(buckets, 100)); // FAILS
}

Error message:

/usr/include/boost/intrusive/hashtable.hpp:227:65: error: using the remote function constxpr boost :: intrusive :: detail :: bucket_traits_impl> :: type> :: bucket_traits_impl (const boost :: intrusive :: detail :: bucket_traits_impl> :: type> &)

, /usr/include/boost/intrusive/hashtable.hpp:30:0,                 /usr/include/boost/intrusive/unordered _set.hpp:18,                 t.cpp: 23:

/usr/include/boost/intrusive/detail/hashtable_node.hpp:80:8: note: 'constexpr boost:: intrusive:: detail:: bucket_traits_impl > :: type > :: bucket_traits_impl (const boost:: intrusive:: detail:: bucket_traits_impl > :: type > &) , 'boost:: intrusive:: detail:: bucket_traits_impl > :: type >

, , hashtable.hpp: 227:

template<class BucketTraits>
bucket_plus_size(BOOST_FWD_REF(BucketTraits) b_traits)
   : bucket_traits_(::boost::forward<BucketTraits>(b_traits))
{}

Boost 1.47 :

bucket_plus_size(const bucket_traits &b_traits)
   : bucket_traits_(b_traits)
{}                 

BOOST_FWD_REF(TYPE) TYPE &&, BOOST_NO_RVALUE_REFERENCES , const TYPE &. , !

, ? GCC, Boost, Fedora ?