diff --git a/include/boost/fusion/algorithm/iteration/fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
index 5bf9e816..f8328e80 100644
--- a/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
@@ -18,7 +18,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::fold<
+    inline typename result_of::fold<
         Seq
       , State const
       , F
@@ -27,7 +27,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::fold<
+    inline typename result_of::fold<
         Seq const
       , State const
       , F
@@ -36,7 +36,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::fold<
+    inline typename result_of::fold<
         Seq
       , State const
       , F
@@ -45,7 +45,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::fold<
+    inline typename result_of::fold<
         Seq const
       , State const
       , F
diff --git a/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
index 84aabfde..6c595cf1 100644
--- a/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
@@ -18,7 +18,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::iter_fold<
+    inline typename result_of::iter_fold<
         Seq
       , State const
       , F
@@ -27,7 +27,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::iter_fold<
+    inline typename result_of::iter_fold<
         Seq const
       , State const
       , F
@@ -36,7 +36,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::iter_fold<
+    inline typename result_of::iter_fold<
         Seq
       , State const
       , F
@@ -45,7 +45,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::iter_fold<
+    inline typename result_of::iter_fold<
         Seq const
       , State const
       , F
diff --git a/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
index 82fad70a..42c8ac21 100644
--- a/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
@@ -18,7 +18,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_fold<
+    inline typename result_of::reverse_fold<
         Seq
       , State const
       , F
@@ -27,7 +27,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_fold<
+    inline typename result_of::reverse_fold<
         Seq const
       , State const
       , F
@@ -36,7 +36,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_fold<
+    inline typename result_of::reverse_fold<
         Seq
       , State const
       , F
@@ -45,7 +45,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_fold<
+    inline typename result_of::reverse_fold<
         Seq const
       , State const
       , F
diff --git a/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
index 9f002419..21d99dee 100644
--- a/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
@@ -18,7 +18,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_iter_fold<
+    inline typename result_of::reverse_iter_fold<
         Seq
       , State const
       , F
@@ -27,7 +27,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_iter_fold<
+    inline typename result_of::reverse_iter_fold<
         Seq const
       , State const
       , F
@@ -36,7 +36,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_iter_fold<
+    inline typename result_of::reverse_iter_fold<
         Seq
       , State const
       , F
@@ -45,7 +45,7 @@ namespace boost { namespace fusion
 
     template<typename Seq, typename State, typename F>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::reverse_iter_fold<
+    inline typename result_of::reverse_iter_fold<
         Seq const
       , State const
       , F
diff --git a/include/boost/fusion/algorithm/query/find_if_fwd.hpp b/include/boost/fusion/algorithm/query/find_if_fwd.hpp
index 419a68c4..cbe9e5e9 100644
--- a/include/boost/fusion/algorithm/query/find_if_fwd.hpp
+++ b/include/boost/fusion/algorithm/query/find_if_fwd.hpp
@@ -22,7 +22,7 @@ namespace boost { namespace fusion
 
     template <typename Pred, typename Sequence>
     BOOST_FUSION_GPU_ENABLED
-    typename 
+    inline typename
         lazy_disable_if<
             is_const<Sequence>
           , result_of::find_if<Sequence, Pred>
@@ -31,7 +31,7 @@ namespace boost { namespace fusion
 
     template <typename Pred, typename Sequence>
     BOOST_FUSION_GPU_ENABLED
-    typename result_of::find_if<Sequence const, Pred>::type const
+    inline typename result_of::find_if<Sequence const, Pred>::type const
     find_if(Sequence const& seq);
 }}
 
diff --git a/include/boost/fusion/algorithm/transformation/erase.hpp b/include/boost/fusion/algorithm/transformation/erase.hpp
index 6ffdb4de..2d220947 100644
--- a/include/boost/fusion/algorithm/transformation/erase.hpp
+++ b/include/boost/fusion/algorithm/transformation/erase.hpp
@@ -100,7 +100,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename First>
     BOOST_FUSION_GPU_ENABLED
-    typename 
+    inline typename
         lazy_enable_if<
             traits::is_sequence<Sequence>
           , typename result_of::erase<Sequence const, First> 
@@ -123,7 +123,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename First, typename Last>
     BOOST_FUSION_GPU_ENABLED
-    typename result_of::erase<Sequence const, First, Last>::type
+    inline typename result_of::erase<Sequence const, First, Last>::type
     erase(Sequence const& seq, First const& first, Last const& last)
     {
         typedef result_of::erase<Sequence const, First, Last> result_of;
diff --git a/include/boost/fusion/iterator/deref.hpp b/include/boost/fusion/iterator/deref.hpp
index b6fee6a5..c31962cb 100644
--- a/include/boost/fusion/iterator/deref.hpp
+++ b/include/boost/fusion/iterator/deref.hpp
@@ -56,7 +56,7 @@ namespace boost { namespace fusion
 
     template <typename Iterator>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::deref<Iterator>::type
+    inline typename result_of::deref<Iterator>::type
     deref(Iterator const& i)
     {
         typedef result_of::deref<Iterator> deref_meta;
@@ -65,7 +65,7 @@ namespace boost { namespace fusion
 
     template <typename Iterator>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::deref<Iterator>::type
+    inline typename result_of::deref<Iterator>::type
     operator*(iterator_base<Iterator> const& i)
     {
         return fusion::deref(i.cast());
diff --git a/include/boost/fusion/iterator/deref_data.hpp b/include/boost/fusion/iterator/deref_data.hpp
index 20d82ebf..65a43324 100644
--- a/include/boost/fusion/iterator/deref_data.hpp
+++ b/include/boost/fusion/iterator/deref_data.hpp
@@ -41,7 +41,7 @@ namespace boost { namespace fusion
 
     template <typename It>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::deref_data<It>::type
+    inline typename result_of::deref_data<It>::type
     deref_data(It const& it)
     {
         return result_of::deref_data<It>::call(it);
diff --git a/include/boost/fusion/iterator/next.hpp b/include/boost/fusion/iterator/next.hpp
index 20d3df94..d6ca3d66 100644
--- a/include/boost/fusion/iterator/next.hpp
+++ b/include/boost/fusion/iterator/next.hpp
@@ -55,7 +55,7 @@ namespace boost { namespace fusion
 
     template <typename Iterator>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::next<Iterator>::type const
+    inline typename result_of::next<Iterator>::type const
     next(Iterator const& i)
     {
         return result_of::next<Iterator>::call(i);
diff --git a/include/boost/fusion/iterator/prior.hpp b/include/boost/fusion/iterator/prior.hpp
index a3541280..80e891c7 100644
--- a/include/boost/fusion/iterator/prior.hpp
+++ b/include/boost/fusion/iterator/prior.hpp
@@ -55,7 +55,7 @@ namespace boost { namespace fusion
 
     template <typename Iterator>
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    typename result_of::prior<Iterator>::type const
+    inline typename result_of::prior<Iterator>::type const
     prior(Iterator const& i)
     {
         return result_of::prior<Iterator>::call(i);
diff --git a/include/boost/fusion/support/segmented_fold_until.hpp b/include/boost/fusion/support/segmented_fold_until.hpp
index 8d3ea682..cf01fea4 100644
--- a/include/boost/fusion/support/segmented_fold_until.hpp
+++ b/include/boost/fusion/support/segmented_fold_until.hpp
@@ -46,7 +46,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename State, typename Fun>
     BOOST_FUSION_GPU_ENABLED
-    typename 
+    inline typename
         lazy_disable_if<
             is_const<Sequence>
           , result_of::segmented_fold_until<Sequence, State, Fun>
@@ -62,7 +62,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename State, typename Fun>
     BOOST_FUSION_GPU_ENABLED
-    typename result_of::segmented_fold_until<Sequence const, State, Fun>::type
+    inline typename result_of::segmented_fold_until<Sequence const, State, Fun>::type
     segmented_fold_until(Sequence const& seq, State const& state, Fun const& fun)
     {
         typedef
diff --git a/include/boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp b/include/boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp
index 7dc4506c..9a744a59 100644
--- a/include/boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp
+++ b/include/boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp
@@ -49,7 +49,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename T>
     BOOST_FUSION_GPU_ENABLED
-    typename
+    inline typename
         lazy_enable_if<
             traits::is_sequence<Sequence>
           , result_of::push_back<Sequence const, T>
@@ -58,7 +58,7 @@ namespace boost { namespace fusion
 
     template <typename Sequence, typename T>
     BOOST_FUSION_GPU_ENABLED
-    typename
+    inline typename
         lazy_enable_if<
             traits::is_sequence<Sequence>
           , result_of::push_front<Sequence const, T>