QTMQTT build error with QT 6.7.2

[DangNguyen]

I try to build qtmqtt with QT 6.7.2.

I got source code as below.

git clone https://github.com/qt/qtmqtt.git
git checkout v6.7.2

And follows the guide below.
https://stackoverflow.com/questions/68928310/build-specific-modules-in-qt6-i-e-qtmqtt/71984521#71984521

I got the error.

 /Qt/6.7.2/gcc_64/include/QtCore/qcomparehelpers.h:211:43:
  error: zero as null pointer constant
  [-Werror=zero-as-null-pointer-constant]

    211 |     { return compareThreeWay(lhs, rhs) >= 0; }
        |   

I do the same as above with QT 6.5.3 by getting source code as below. But there is no error.

git clone https://github.com/qt/qtmqtt.git
git checkout v6.5.3

Is there any idea to fix build error with QT6.7.2?

Thanks.