--- deps/v8/src/compiler/instruction.h.orig	2016-03-16 21:22:58.000000000 +0100

+++ deps/v8/src/compiler/instruction.h	2016-03-24 23:27:23.004854000 +0100

@@ -1011,7 +1011,7 @@ class InstructionBlock final : public Zo

 typedef ZoneDeque<Constant> ConstantDeque;

 typedef std::map<int, Constant, std::less<int>,

-                 zone_allocator<std::pair<int, Constant> > > ConstantMap;

+                 zone_allocator<std::pair<const int, Constant> > > ConstantMap;

 typedef ZoneDeque<Instruction*> InstructionDeque;

 typedef ZoneDeque<ReferenceMap*> ReferenceMapDeque;

--- deps/v8/src/compiler/js-type-feedback.h.orig	2016-03-16 21:22:58.000000000 +0100

+++ deps/v8/src/compiler/js-type-feedback.h	2016-03-24 22:54:54.529827000 +0100

@@ -33,9 +33,10 @@ class JSTypeFeedbackTable : public ZoneO

  private:

   friend class JSTypeFeedbackSpecializer;

   typedef std::map<NodeId, TypeFeedbackId, std::less<NodeId>,

-                   zone_allocator<TypeFeedbackId> > TypeFeedbackIdMap;

+                   zone_allocator<std::pair<const NodeId, TypeFeedbackId> > >

+      TypeFeedbackIdMap;

   typedef std::map<NodeId, FeedbackVectorICSlot, std::less<NodeId>,

-                   zone_allocator<FeedbackVectorICSlot> >

+                   zone_allocator<std::pair<const NodeId, FeedbackVectorICSlot> > >

       FeedbackVectorICSlotMap;

   TypeFeedbackIdMap type_feedback_id_map_;

--- deps/v8/src/zone-containers.h.orig	2016-03-16 21:22:58.000000000 +0100

+++ deps/v8/src/zone-containers.h	2016-03-24 23:34:37.741885000 +0100

@@ -114,12 +114,12 @@ class ZoneSet : public std::set<K, Compa

 // a zone allocator.

 template <typename K, typename V, typename Compare = std::less<K>>

 class ZoneMap

-    : public std::map<K, V, Compare, zone_allocator<std::pair<K, V>>> {

+    : public std::map<K, V, Compare, zone_allocator<std::pair<const K, V>>> {

  public:

   // Constructs an empty map.

   explicit ZoneMap(Zone* zone)

-      : std::map<K, V, Compare, zone_allocator<std::pair<K, V>>>(

-            Compare(), zone_allocator<std::pair<K, V>>(zone)) {}

+      : std::map<K, V, Compare, zone_allocator<std::pair<const K, V>>>(

+            Compare(), zone_allocator<std::pair<const K, V>>(zone)) {}

 };