Index: /trunk/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c	(revision 53403)
+++ /trunk/src/VBox/Runtime/r0drv/solaris/timer-r0drv-solaris.c	(revision 53404)
@@ -221,5 +221,5 @@
 
     pTimer->pOmniTimer->au64Ticks[pCpu->cpu_id] = 0;
-    pCyclicHandler->cyh_func  = rtTimerSolCallbackWrapper;
+    pCyclicHandler->cyh_func  = (cyc_func_t)rtTimerSolCallbackWrapper;
     pCyclicHandler->cyh_arg   = pTimer;
     pCyclicHandler->cyh_level = CY_LOCK_LEVEL;
@@ -368,5 +368,5 @@
 
         pTimer->pSingleTimer = pSingleTimer;
-        pSingleTimer->hHandler.cyh_func  = rtTimerSolCallbackWrapper;
+        pSingleTimer->hHandler.cyh_func  = (cyc_func_t)rtTimerSolCallbackWrapper;
         pSingleTimer->hHandler.cyh_arg   = pTimer;
         pSingleTimer->hHandler.cyh_level = CY_LOCK_LEVEL;