Fix includes right throughout the Xserver tree:

change "foo.h" to <X11/foo.h> for core headers, e.g. X.h, Xpoll.h;
change "foo.h", "extensions/foo.h" and "X11/foo.h" to
    <X11/extensions/foo.h> for extension headers, e.g. Xv.h;
change "foo.[ch]" to <X11/Xtrans/foo.[ch]> for Xtrans files.

hw/xfree86/common/xf86Cursor.c

@@ -29,8 +29,8 @@
 /* $XConsortium: xf86Cursor.c /main/10 1996/10/19 17:58:23 kaleb $ */
 
 #define NEED_EVENTS
-#include "X.h"
-#include "Xmd.h"
+#include <X11/X.h>
+#include <X11/Xmd.h>
 #include "input.h"
 #include "cursor.h"
 #include "mipointer.h"
@@ -44,7 +44,7 @@
 #include "xf86_OSproc.h"
 
 #ifdef XINPUT
-#include "XIproto.h"
+#include <X11/extensions/XIproto.h>
 #include "xf86Xinput.h"
 #endif