[boost] Weird Boost 1.55 beta failure on VS2013 RC

Subject: [boost] Weird Boost 1.55 beta failure on VS2013 RC
From: Niall Douglas (s_sourceforge_at_[hidden])
Date: 2013-10-07 20:10:47

Can someone else confirm that Boost v1.55 beta is not compiling on 
VS2013 RC? I see lots of this:

2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(42): error
C2065: 'ReadableIterator' : undeclared identifier
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(42): error
C2065: 'Iterator' : undeclared identifier
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(43): error
C2448: 'BOOST_concept' : function-style initializer appears to be a
function definition
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(43): error
C2143: syntax error : missing ';' before ':'
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(43): error
C2065: 'Iterator' : undeclared identifier
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(43): error
C2923: 'boost::Assignable' : 'Iterator' is not a valid template type
argument for parameter 'TT'
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(44): error
C2143: syntax error : missing ';' before ','
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(44): error
C2059: syntax error : ','
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(44): error
C2065: 'Iterator' : undeclared identifier
2>G:\TripleGit\boost\boost/iterator/iterator_concepts.hpp(44): error
C2923: 'boost::CopyConstructible' : 'Iterator' is not a valid 
template
type argument for parameter 'TT'
....

Here is the really weird thing - the macro BOOST_concept appears to 
not be defined, so if you do a:

#ifndef BOOST_concept
#error Hello
#endif

... you get error Hello. Methinks this is a compiler bug in the RC, 
but can anyone else confirm?

Niall

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