OSX: Fixed compile error.

examples/14-shadowvolumes/shadowvolumes.cpp

@@ -856,7 +856,7 @@ struct HalfEdges
 	{
 		m_data = (HalfEdge*)malloc(2 * _numIndices * sizeof(HalfEdge));
 
-		std::unordered_map<uint16_t, std::vector<uint16_t>> edges;
+		std::unordered_map<uint16_t, std::vector<uint16_t> > edges;
 		for (uint32_t ii = 0; ii < _numIndices; ii+=3)
 		{
 			uint16_t idx0 = _indices[ii];