fixed #277 cmake installs private class
fixed #277 cmake installs private class

rbazaud/liblxqt,ThomasVie/liblxqt,gilir/liblxqt-qt5,pmattern/liblxqt,lxde/liblxqt,stefonarch/liblxqt,stefonarch/liblxqt,lxde/liblxqt,ThomasVie/liblxqt,gilir/liblxqt-qt5,rbazaud/liblxqt,pmattern/liblxqt