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diff --git a/dep/g3dlite/G3D/enumclass.h b/dep/g3dlite/G3D/enumclass.h
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+++ b/dep/g3dlite/G3D/enumclass.h
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+/**
+  @file G3D/enumclass.h
+
+  @maintainer Morgan McGuire, http://graphics.cs.williams.edu
+  @created 2007-01-27
+  @edited  2007-07-20
+*/
+#ifndef G3D_enumclass_h
+#define G3D_enumclass_h
+
+#include "G3D/HashTrait.h"
+#include "G3D/BinaryInput.h"
+#include "G3D/BinaryOutput.h"
+
+/**
+\def G3D_DECLARE_ENUM_CLASS_METHODS
+
+  \brief Creates a series of methods that turn a class into a scoped enumeration.
+
+  Uses the "Intelligent Enum" design pattern 
+  http://www.codeguru.com/cpp/cpp/cpp_mfc/article.php/c4001/
+
+  Enum classes are initialized to their zero value by default.
+
+  See GLG3D/GKey.h for an example.
+  \sa G3D_DECLARE_ENUM_CLASS_HASHCODE
+ */
+#define G3D_DECLARE_ENUM_CLASS_METHODS(Classname)\
+    inline Classname(char v) : value((Value)v) {}\
+\
+    inline Classname() : value((Value)0) {}\
+\
+    inline Classname(const Value v) : value(v) {}\
+\
+    explicit inline Classname(int v) : value((Value)v) {}\
+\
+    /** Support cast back to the Value type, which is needed to allow implicit assignment inside unions. */\
+    /*inline operator Value() const {
+        return value;
+	}*/\
+\
+    inline operator int() const {\
+        return (int)value;\
+    }\
+\
+    inline bool operator== (const Classname other) const {\
+        return value == other.value;\
+    }\
+\
+    inline bool operator== (const Classname::Value other) const {\
+        return value == other;\
+    }\
+\
+    inline bool operator!= (const Classname other) const {\
+        return value != other.value;\
+    }\
+\
+    inline bool operator!= (const Classname::Value other) const {\
+        return value != other;\
+    }\
+\
+    inline bool operator< (const Classname other) const {\
+        return value < other.value;\
+    }\
+\
+    inline bool operator> (const Classname other) const {\
+        return value > other.value;\
+    }\
+\
+    inline bool operator>= (const Classname other) const {\
+        return value >= other.value;\
+    }\
+\
+    inline bool operator<= (const Classname other) const {\
+        return value <= other.value;\
+    }\
+\
+    inline bool operator< (const Value other) const {\
+        return value < other;\
+    }\
+\
+    inline bool operator> (const Value other) const {\
+        return value > other;\
+    }\
+\
+    inline bool operator<= (const Value other) const {\
+        return value <= other;\
+    }\
+\
+    inline bool operator>= (const Value other) const {\
+        return value >= other;\
+    }\
+\
+    inline Classname& operator-- () {\
+        value = (Value)((int)value - 1);\
+        return *this;\
+    }\
+\
+    inline Classname& operator++ () {\
+        value = (Value)((int)value + 1);\
+        return *this;\
+    }\
+\
+    inline Classname& operator+= (const int x) {\
+        value = (Value)((int)value + x);\
+        return *this;\
+    }\
+\
+    inline Classname& operator-= (const int x) {\
+        value = (Value)((int)value - x);\
+        return *this;\
+    }\
+\
+    inline Classname operator+ (const int x) const {\
+        return Classname((int)value + x);\
+    }\
+\
+    inline Classname operator- (const int x) const {\
+        return Classname((int)value - x);\
+    }\
+\
+    inline unsigned int hashCode() const {\
+        return (unsigned int)value;\
+    }\
+\
+    inline void serialize(BinaryOutput& b) const {\
+        b.writeInt32(value);\
+    }\
+\
+    inline void deserialize(BinaryInput& b) {\
+        value = (Value)b.readInt32();\
+    }
+
+/** \def G3D_DECLARE_ENUM_CLASS_HASHCODE
+*/
+#define G3D_DECLARE_ENUM_CLASS_HASHCODE(Classname)\
+template <> struct HashTrait<Classname::Value>                                              \
+{                                                                                           \
+    static size_t hashCode(Classname::Value key) { return static_cast<size_t>(key); }       \
+};                                                                                          \
+                                                                                            \
+template <> struct HashTrait<Classname>                                                     \
+{                                                                                           \
+    static size_t hashCode(Classname key) { return static_cast<size_t>(key.hashCode()); }   \
+};
+
+#endif