Fix a race condition in the file watcher and a few compilation warnings.

src/input/controller.h

@@ -326,7 +326,7 @@ public:
             MAX,
         };
     protected:
-        virtual bool BuildEnumMap(map<int64_t, String>& enum_map) { return true; }
+        virtual bool BuildEnumMap(map<int64_t, String>& enum_map) { UNUSED(enum_map); return true; }
     };
     typedef SafeEnum<InputTypeBase> InputType;
 

src/lol/sys/threadtypes.h

@@ -67,7 +67,7 @@ public:
             m_mutex.lock();
             long int time = m_time;
             m_mutex.unlock();
-            return m_time;
+            return time;
         }
         void SetUpdated(bool updated)
         {

src/lolua/baselua.h

@@ -958,7 +958,7 @@ protected:
     static void Release(LuaState* l, Loader* loader);
     static void StoreObject(LuaState* l, Object* obj);
     //Virtual Store lua object ------------------------------------------------
-    virtual void Store(Object* obj) { }
+    virtual void Store(Object* obj) { UNUSED(obj); }
 
 private:
     LuaState* m_lua_state;