COMMON: Fix compilation when USE_HASHMAP_MEMORY_POOL is not defined.

common/hashmap.h

@@ -106,8 +106,9 @@ private:
 		HASHMAP_MEMORYPOOL_SIZE = HASHMAP_MIN_CAPACITY * HASHMAP_LOADFACTOR_NUMERATOR / HASHMAP_LOADFACTOR_DENOMINATOR
 	};
 
-
+#ifdef USE_HASHMAP_MEMORY_POOL
 	ObjectPool<Node, HASHMAP_MEMORYPOOL_SIZE> _nodePool;
+#endif
 
 	Node **_storage;	///< hashtable of size arrsize.
 	uint _mask;		///< Capacity of the HashMap minus one; must be a power of two of minus one
@@ -128,12 +129,20 @@ private:
 #endif
 
 	Node *allocNode(const Key &key) {
+#ifdef USE_HASHMAP_MEMORY_POOL
 		return new (_nodePool) Node(key);
+#else
+		return new Node(key);
+#endif
 	}
 
 	void freeNode(Node *node) {
 		if (node && node != HASHMAP_DUMMY_NODE)
+#ifdef USE_HASHMAP_MEMORY_POOL
 			_nodePool.deleteChunk(node);
+#else
+			delete node;
+#endif
 	}
 
 	void assign(const HM_t &map);