1 files changed, 1 insertions, 2 deletions
diff --git a/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp b/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
index 1d2dfd446d..32954f42ee 100644
--- a/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
+++ b/boost/fusion/container/set/detail/cpp03/preprocessed/set50.hpp
@@ -8,7 +8,6 @@
 ==============================================================================*/
 namespace boost { namespace fusion
 {
-    struct void_;
     struct fusion_sequence_tag;
     template <typename T0 , typename T1 , typename T2 , typename T3 , typename T4 , typename T5 , typename T6 , typename T7 , typename T8 , typename T9 , typename T10 , typename T11 , typename T12 , typename T13 , typename T14 , typename T15 , typename T16 , typename T17 , typename T18 , typename T19 , typename T20 , typename T21 , typename T22 , typename T23 , typename T24 , typename T25 , typename T26 , typename T27 , typename T28 , typename T29 , typename T30 , typename T31 , typename T32 , typename T33 , typename T34 , typename T35 , typename T36 , typename T37 , typename T38 , typename T39 , typename T40 , typename T41 , typename T42 , typename T43 , typename T44 , typename T45 , typename T46 , typename T47 , typename T48 , typename T49>
     struct set : sequence_base<set<T0 , T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 , T12 , T13 , T14 , T15 , T16 , T17 , T18 , T19 , T20 , T21 , T22 , T23 , T24 , T25 , T26 , T27 , T28 , T29 , T30 , T31 , T32 , T33 , T34 , T35 , T36 , T37 , T38 , T39 , T40 , T41 , T42 , T43 , T44 , T45 , T46 , T47 , T48 , T49> >
@@ -27,7 +26,7 @@ namespace boost { namespace fusion
         template <typename Sequence>
         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
         set(Sequence const& rhs
-            , typename boost::enable_if<traits::is_sequence<Sequence> >::type* = 0)
+            , typename enable_if<traits::is_sequence<Sequence>, detail::enabler_>::type = detail::enabler)
             : data(rhs) {}
     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
     explicit