../../raki/threadevent.h:48: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::incTotalSteps(int)': rakisyncplugin.cpp:142: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::decTotalSteps(int)': rakisyncplugin.cpp:150: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::advanceProgress()': rakisyncplugin.cpp:156: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::setTotalSteps(int)': rakisyncplugin.cpp:164: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::setProgress(int)': rakisyncplugin.cpp:172: error: default arguments are only permitted for function parameters rakisyncplugin.cpp: In member function 'void RakiSyncPlugin::setTask(const char*)': rakisyncplugin.cpp:178: error: default arguments are only permitted for function parameters make[3]: *** [rakisyncplugin.o] Error 1