diff -Nru boost1.62-1.62.0+dfsg/debian/changelog boost1.62-1.62.0+dfsg/debian/changelog
--- boost1.62-1.62.0+dfsg/debian/changelog	2017-11-07 08:50:59.000000000 +0000
+++ boost1.62-1.62.0+dfsg/debian/changelog	2018-01-06 20:44:32.000000000 +0000
@@ -1,33 +1,10 @@
-boost1.62 (1.62.0+dfsg-4build5) bionic; urgency=medium
+boost1.62 (1.62.0+dfsg-5) unstable; urgency=medium
 
-  * No-change rebuild for icu soname change.
+  * patches/flat-map-remove-partial-specializations.patch: New.  Upstream
+    patch to remove now-unnecessary partial specializations.  Closes:
+    #883987.
 
- -- Matthias Klose <doko@ubuntu.com>  Tue, 07 Nov 2017 08:50:59 +0000
-
-boost1.62 (1.62.0+dfsg-4build4) bionic; urgency=medium
-
-  * No-change rebuild for libicu soname change.
-
- -- Matthias Klose <doko@ubuntu.com>  Wed, 25 Oct 2017 15:38:04 +0000
-
-boost1.62 (1.62.0+dfsg-4build3) artful; urgency=medium
-
-  * No-change rebuild to build with python3.6.
-
- -- Matthias Klose <doko@ubuntu.com>  Mon, 24 Jul 2017 13:49:07 +0000
-
-boost1.62 (1.62.0+dfsg-4build2) artful; urgency=medium
-
-  * No-change rebuild to pick up -fPIE compiler default in static
-    libraries
-
- -- Steve Langasek <steve.langasek@ubuntu.com>  Fri, 02 Jun 2017 22:26:02 +0000
-
-boost1.62 (1.62.0+dfsg-4build1) artful; urgency=medium
-
-  * No change rebuild to add Python 3.6 support.
-
- -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Fri, 12 May 2017 11:18:00 +1200
+ -- Steve M. Robbins <smr@debian.org>  Sat, 06 Jan 2018 14:44:32 -0600
 
 boost1.62 (1.62.0+dfsg-4) unstable; urgency=medium
 
diff -Nru boost1.62-1.62.0+dfsg/debian/patches/flat-map-remove-partial-specializations.patch boost1.62-1.62.0+dfsg/debian/patches/flat-map-remove-partial-specializations.patch
--- boost1.62-1.62.0+dfsg/debian/patches/flat-map-remove-partial-specializations.patch	1970-01-01 00:00:00.000000000 +0000
+++ boost1.62-1.62.0+dfsg/debian/patches/flat-map-remove-partial-specializations.patch	2018-01-06 20:44:32.000000000 +0000
@@ -0,0 +1,52 @@
+From 5e4a107e82ab3281688311d22d2bfc2fddcf84a3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
+Date: Fri, 25 Nov 2016 23:56:33 +0100
+Subject: [PATCH] Fixes Ticket #12534: flat_map fails to compile if included
+ after type_traits is instantiated under gcc
+
+---
+ doc/container.qbk                       |  1 +
+ include/boost/container/detail/pair.hpp | 30 ------------------------------
+ 2 files changed, 1 insertion(+), 30 deletions(-)
+
+diff --git a/include/boost/container/detail/pair.hpp b/include/boost/container/detail/pair.hpp
+index 63d1dead..4abff4b4 100644
+--- a/boost/container/detail/pair.hpp
++++ b/boost/container/detail/pair.hpp
+@@ -428,36 +428,6 @@ inline void swap(pair<T1, T2>& x, pair<T1, T2>& y)
+ }  //namespace container_detail {
+ }  //namespace container {
+ 
+-
+-//Without this specialization recursive flat_(multi)map instantiation fails
+-//because is_enum needs to instantiate the recursive pair, leading to a compilation error).
+-//This breaks the cycle clearly stating that pair is not an enum avoiding any instantiation.
+-template<class T>
+-struct is_enum;
+-
+-template<class T, class U>
+-struct is_enum< ::boost::container::container_detail::pair<T, U> >
+-{
+-   static const bool value = false;
+-};
+-
+-template<class T, class U>
+-struct is_enum< ::std::pair<T, U> >
+-{
+-   static const bool value = false;
+-};
+-
+-template <class T>
+-struct is_class;
+-
+-//This specialization is needed to avoid instantiation of pair in
+-//is_class, and allow recursive maps.
+-template <class T1, class T2>
+-struct is_class< ::boost::container::container_detail::pair<T1, T2> >
+-{
+-   static const bool value = true;
+-};
+-
+ #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+ 
+ template<class T1, class T2>
diff -Nru boost1.62-1.62.0+dfsg/debian/patches/series boost1.62-1.62.0+dfsg/debian/patches/series
--- boost1.62-1.62.0+dfsg/debian/patches/series	2016-11-12 18:39:04.000000000 +0000
+++ boost1.62-1.62.0+dfsg/debian/patches/series	2018-01-06 20:36:17.000000000 +0000
@@ -8,3 +8,4 @@
 # fixed alternatively? boost-context-use-sysv-not-aapcs.patch
 no-gcc-march-options.patch
 upstream-add-degree-reverse_graph.patch
+flat-map-remove-partial-specializations.patch