Mac编译QT程序出现Undefined symbols for architecture x86_64

在Mac编写日志服务类，

Logging_d.h内容如下

#pragma once
#include <QLoggingCategory>
Q_DECLARE_LOGGING_CATEGORY(hovering)
Q_DECLARE_LOGGING_CATEGORY(creation)
Q_DECLARE_LOGGING_CATEGORY(mouseevents)
Q_DECLARE_LOGGING_CATEGORY(state)
Q_DECLARE_LOGGING_CATEGORY(docking)
Q_DECLARE_LOGGING_CATEGORY(globalevents)
Q_DECLARE_LOGGING_CATEGORY(hiding)
Q_DECLARE_LOGGING_CATEGORY(closing)
Q_DECLARE_LOGGING_CATEGORY(overlay)
Q_DECLARE_LOGGING_CATEGORY(dropping)
Q_DECLARE_LOGGING_CATEGORY(restoring)
Q_DECLARE_LOGGING_CATEGORY(title)
Q_DECLARE_LOGGING_CATEGORY(closebutton)
Q_DECLARE_LOGGING_CATEGORY(sizing)
Q_DECLARE_LOGGING_CATEGORY(multisplittercreation)
Q_DECLARE_LOGGING_CATEGORY(addwidget)
Q_DECLARE_LOGGING_CATEGORY(anchors)
Q_DECLARE_LOGGING_CATEGORY(item)
Q_DECLARE_LOGGING_CATEGORY(placeholder)
Q_DECLARE_LOGGING_CATEGORY(toplevels)

Logging.cpp内容如下