guard against crash
guard against crash

gotomypc/qxmpp,LightZam/qxmpp,trulabs/qxmpp-old,olesalscheider/qxmpp,cccco/qxmpp,deepak899/qxmpp,Ilyatk/qxmpp,ycsoft/qxmpp,trulabs/qxmpp-old,gotomypc/qxmpp,trulabs/qxmpp-old,cccco/qxmpp,Kaffeine/qxmpp,ycsoft/qxmpp,deepak899/qxmpp,kollix/qxmpp,olesalscheider/qxmpp,cccco/qxmpp,gotomypc/qxmpp,kollix/qxmpp,unisontech/qxmpp,LightZam/qxmpp,gamenet/qxmpp_old,projedi/qxmpp-ffmpeg,ycsoft/qxmpp,KangLin/qxmpp,deepak899/qxmpp,unisontech/qxmpp,gamenet/qxmpp_old,Kaffeine/qxmpp,kollix/qxmpp,KangLin/qxmpp,pol51/QXMPP-CMake,Ilyatk/qxmpp,pol51/QXMPP-CMake,olesalscheider/qxmpp,gamenet/qxmpp,gamenet/qxmpp_old,gamenet/qxmpp,Kaffeine/qxmpp,unisontech/qxmpp,projedi/qxmpp-ffmpeg,KangLin/qxmpp,pol51/QXMPP-CMake,gamenet/qxmpp,Ilyatk/qxmpp,LightZam/qxmpp