Index: xlock/vroot.h
===================================================================
--- xlock/vroot.h.orig	2007-10-28 02:49:36.000000000 +0100
+++ xlock/vroot.h	2010-12-14 12:19:00.878842537 +0100
@@ -108,7 +108,7 @@ VirtualRootWindowOfScreen(Screen * s)
 					 __SWM_VROOT, 0, 1, False, XA_WINDOW,
 						&actual_type, &actual_format,
 							&nitems, &bytesafter,
-							(unsigned char **) &newRoot) == Success && newRoot) {
+							&newRoot) == Success && newRoot) {
 						root = *newRoot;
 						break;
 					}