From 224a19c5c06a8b600908ec3465cdbb578d50108e Mon Sep 17 00:00:00 2001
From: Gabriel Corona <gabriel.corona@loria.fr>
Date: Tue, 28 Jun 2016 11:58:18 +0200
Subject: [PATCH] Replace std::aligned_union<> which is not available in GNU
 libstdc++ 4.8

---
 include/xbt/functional.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/xbt/functional.hpp b/include/xbt/functional.hpp
index 99cba0d7e1..2429b5bf0a 100644
--- a/include/xbt/functional.hpp
+++ b/include/xbt/functional.hpp
@@ -114,11 +114,23 @@ private:
   struct whatever {};
 
   // Union used for storage:
+#if 0
   typedef typename std::aligned_union<0,
     void*,
     std::pair<void(*)(),void*>,
     std::pair<void(whatever::*)(), whatever*>
   >::type TaskUnion;
+#else
+  union TaskUnion {
+    void* ptr;
+    std::pair<void(*)(),void*> funcptr;
+    std::pair<void(whatever::*)(), whatever*> memberptr;
+    char any1[sizeof(std::pair<void(*)(),void*>)];
+    char any2[sizeof(std::pair<void(whatever::*)(), whatever*>)];
+    TaskUnion() {}
+    ~TaskUnion() {}
+  };
+#endif
 
   // Is F suitable for small buffer optimization?
   template<class F>
-- 
2.20.1