[boost] range/concepts.hpp broken on master

Trying to, f.ex., build quickbook on master fails with an error like ./boost/range/concepts.hpp: In destructor 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept()': ./boost/range/concepts.hpp:167:55: error: 'iterator_traits' in namespace 'boost::detail' does not name a type That's because boost/iterator/iterator_concepts.hpp used to include boost/detail/iterator.hpp, and no longer does since this commit: https://github.com/boostorg/iterator/commit/0107df44ab3ab41c46b616c9c37c30f3... This apparently works on develop, which means that it's probably fixed in Range's develop branch, but the changes aren't in master.