fix compilation with tests enabled for KDE
fix compilation with tests enabled for KDE

tucnak/marble,utkuaydin/marble,rku/marble,David-Gil/marble-dev,quannt24/marble,AndreiDuma/marble,tzapzoor/marble,quannt24/marble,oberluz/marble,Earthwings/marble,Earthwings/marble,adraghici/marble,quannt24/marble,rku/marble,adraghici/marble,AndreiDuma/marble,probonopd/marble,adraghici/marble,oberluz/marble,probonopd/marble,rku/marble,adraghici/marble,AndreiDuma/marble,utkuaydin/marble,quannt24/marble,probonopd/marble,tucnak/marble,tucnak/marble,tzapzoor/marble,tzapzoor/marble,adraghici/marble,AndreiDuma/marble,David-Gil/marble-dev,David-Gil/marble-dev,tzapzoor/marble,Earthwings/marble,utkuaydin/marble,adraghici/marble,tucnak/marble,quannt24/marble,tzapzoor/marble,David-Gil/marble-dev,AndreiDuma/marble,probonopd/marble,David-Gil/marble-dev,oberluz/marble,Earthwings/marble,tzapzoor/marble,tucnak/marble,tzapzoor/marble,oberluz/marble,Earthwings/marble,probonopd/marble,utkuaydin/marble,probonopd/marble,tucnak/marble,rku/marble,David-Gil/marble-dev,oberluz/marble,tucnak/marble,quannt24/marble,oberluz/marble,Earthwings/marble,quannt24/marble,rku/marble,probonopd/marble,utkuaydin/marble,AndreiDuma/marble,tzapzoor/marble,rku/marble,utkuaydin/marble