It *also* broke Windows compilation:
C:\CI\workspace\Frameworks\kcoreaddons\kf5-qt5 WindowsMSVCQt5.13\src\lib\io\kautosavefile.cpp(79): error C2065: 'NAME_MAX': undeclared identifier
https://build.kde.org/job/Frameworks/view/Everything%20-%20kf5-qt5/job/kcoreaddons/job/kf5-qt5%20WindowsMSVCQt5.13/