Avoid error of empty if
When in no debug mode, this triggers an error of an empty clause of an if, containing only a «;» as the macro is empty expanded
Closes https://git.duagon.com/project/13/13mdis/linux/13MD05-90/-/issues/443 and https://git.duagon.com/project/13/13mdis/linux/13MD05-90/-/issues/442