Index: /trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp
===================================================================
--- /trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp	(revision 64289)
+++ /trunk/src/VBox/HostDrivers/Support/SUPDrvGip.cpp	(revision 64290)
@@ -1870,5 +1870,9 @@
      * Allocate a contiguous set of pages with a default kernel mapping.
      */
+#ifdef RT_OS_WINDOWS
     cbGipCpuGroups = supdrvOSGipGetGroupTableSize(pDevExt);
+#else
+    cbGipCpuGroups = 0;
+#endif
     cbGip = RT_UOFFSETOF(SUPGLOBALINFOPAGE, aCPUs[cCpus]) + cbGipCpuGroups;
     rc = RTR0MemObjAllocCont(&pDevExt->GipMemObj, cbGip, false /*fExecutable*/);