Index: VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/vboxvideo.c
===================================================================
--- VirtualBox-5.2.0.orig/src/VBox/Additions/x11/vboxvideo/vboxvideo.c
+++ VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/vboxvideo.c
@@ -1237,7 +1237,11 @@ static Bool VBOXScreenInit(ScreenPtr pSc
 #endif
 
     /* Register block and wake-up handlers for getting new screen size hints. */
+#if XORG_VERSION_CURRENT >= 11900000
+    RegisterBlockAndWakeupHandlers(vboxBlockHandler, (ServerWakeupHandlerProcPtr)NoopDDA, (pointer)pScrn);
+#else
     RegisterBlockAndWakeupHandlers(vboxBlockHandler, (WakeupHandlerProcPtr)NoopDDA, (pointer)pScrn);
+#endif
 
     /* software cursor */
     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
Index: VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/pointer.c
===================================================================
--- VirtualBox-5.2.0.orig/src/VBox/Additions/x11/vboxvideo/pointer.c
+++ VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/pointer.c
@@ -36,6 +36,10 @@
 #include "cursorstr.h"
 #include "servermd.h"
 
+#if XORG_VERSION_CURRENT >= 11900000
+#include <bits/sigset.h>
+typedef __sigset_t sigset_t;
+#endif
 #include "vboxvideo.h"
 
 #ifdef XORG_7X
Index: VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/edid.c
===================================================================
--- VirtualBox-5.2.0.orig/src/VBox/Additions/x11/vboxvideo/edid.c
+++ VirtualBox-5.2.0/src/VBox/Additions/x11/vboxvideo/edid.c
@@ -36,6 +36,10 @@
  *    Michael Thayer <michael.thayer@oracle.com>
  */
 
+#if XORG_VERSION_CURRENT >= 11900000
+#include <bits/sigset.h>
+typedef __sigset_t sigset_t;
+#endif
 #include "misc.h"
 #include "xf86DDC.h"
 #include "xf86Crtc.h"