src/cxx_supportlib/vendor-modified/boost/iterator/advance.hpp in passenger-6.0.14 vs src/cxx_supportlib/vendor-modified/boost/iterator/advance.hpp in passenger-6.0.15

@@ -6,10 +6,11 @@
 
 #ifndef BOOST_ITERATOR_ADVANCE_HPP
 #define BOOST_ITERATOR_ADVANCE_HPP
 
 #include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
 #include <boost/iterator/iterator_categories.hpp>
 
 namespace boost {
 namespace iterators {
 
@@ -26,10 +27,16 @@
                 ++it;
                 --n;
             }
         }
 
+#if BOOST_WORKAROUND(BOOST_GCC_VERSION, >= 40600)
+// type-limits warning issued below when n is an unsigned integral
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtype-limits"
+#endif
+
         template <typename BidirectionalIterator, typename Distance>
         inline BOOST_CXX14_CONSTEXPR void
         advance_impl(
             BidirectionalIterator& it
           , Distance n
@@ -47,9 +54,13 @@
                     --it;
                     ++n;
                 }
             }
         }
+
+#if BOOST_WORKAROUND(BOOST_GCC_VERSION, >= 40600)
+#pragma GCC diagnostic pop
+#endif
 
         template <typename RandomAccessIterator, typename Distance>
         inline BOOST_CXX14_CONSTEXPR void
         advance_impl(
             RandomAccessIterator& it