CMake Warning: Manually-specified variables were not used by the project: CMAKE_LD_FLAGS ECM_MKSPECS_INSTALL_DIR /var/pisi/modemmanager-qt-6.12.0-75/work/modemmanager-qt-6.12.0/src/modemdevice.cpp: In member function ‘void ModemManager::ModemDevicePrivate::init()’: /var/pisi/modemmanager-qt-6.12.0-75/work/modemmanager-qt-6.12.0/src/modemdevice.cpp:51:10: warning: variable ‘success’ set but not used [-Wunused-but-set-variable] 51 | bool success = QDBusConnection::sessionBus().connect(QLatin1String(MMQT_DBUS_SERVICE), | ^~~~~~~ /var/pisi/modemmanager-qt-6.12.0-75/work/modemmanager-qt-6.12.0/src/modemdevice.cpp: In member function ‘void ModemManager::ModemDevicePrivate::init()’: /var/pisi/modemmanager-qt-6.12.0-75/work/modemmanager-qt-6.12.0/src/modemdevice.cpp:64:10: warning: variable ‘success’ set but not used [-Wunused-but-set-variable] 64 | bool success = QDBusConnection::systemBus().connect(QLatin1String(MMQT_DBUS_SERVICE), | ^~~~~~~