GnomeScreensaver::getTicks() returns uint64_t

modes/Spin.h

@@ -26,7 +26,7 @@ class Spin : public Mode
         LogoBox m_logobox;
         int m_num_monitors;
         monitor_info_t *m_monitor_info;
-        unsigned int m_last_ticks;
+        uint64_t m_last_ticks;
         void initMonitorInfo();
         void getRandomAxis(float (*axis)[3]);
         uint32_t getRandomSwitchTime();