From c1ac1fb93dace81b2a60f9d1f5d6d20298c8b9bb Mon Sep 17 00:00:00 2001
From: Fabrice Bellet <fabrice@bellet.info>
Date: Fri, 1 Feb 2019 09:29:40 +0100
Subject: [PATCH] fix for boost 1.69

---
 simgear/nasal/cppbind/NasalHash.hxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/simgear/nasal/cppbind/NasalHash.hxx b/simgear/nasal/cppbind/NasalHash.hxx
index aac672fd..2ee7d044 100644
--- a/simgear/nasal/cppbind/NasalHash.hxx
+++ b/simgear/nasal/cppbind/NasalHash.hxx
@@ -23,6 +23,7 @@
 #include "to_nasal.hxx"
 
 #include <simgear/structure/map.hxx>
+#include <boost/core/enable_if.hpp>
 #include <boost/iterator/iterator_facade.hpp>
 
 namespace nasal
-- 
2.20.1