work for virtualbox qt5

hardware/virtualization/virtualbox/files/008-root-window.patch

@@ -0,0 +1,19 @@
+--- a/src/VBox/Additions/x11/vboxvideo/vboxvideo.h	2015-03-04 00:38:45.381480285 +0100
++++ b/src/VBox/Additions/x11/vboxvideo/vboxvideo.h	2015-03-04 00:40:57.536942966 +0100
+@@ -130,15 +130,7 @@
+ #define VBOX_MAX_DRAWABLES    256          /* At random. */
+ 
+ #define VBOXPTR(p) ((VBOXPtr)((p)->driverPrivate))
+-
+-/** Helper to work round different ways of getting the root window in different
+- * server versions. */
+-#if defined(XORG_VERSION_CURRENT) && XORG_VERSION_CURRENT < 70000000 \
+-    && XORG_VERSION_CURRENT >= 10900000
+-# define ROOT_WINDOW(pScrn) screenInfo.screens[(pScrn)->scrnIndex]->root
+-#else
+-# define ROOT_WINDOW(pScrn) WindowTable[(pScrn)->scrnIndex]
+-#endif
++#define ROOT_WINDOW(pScrn) screenInfo.screens[(pScrn)->scrnIndex]->root
+ 
+ /** Structure containing all virtual monitor-specific information. */
+ struct VBoxScreen