--- /usr/portage/distfiles/cvs-src/qemu/vl.c	2004-06-21 07:26:53.000000000 +0200
+++ vl.c	2004-06-21 13:23:02.009842912 +0200
@@ -38,6 +38,8 @@
 #include <sys/mman.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
+#include <X11/Xlib.h>
+#include <X11/Xlibint.h>
 #ifdef _BSD
 #include <sys/stat.h>
 #include <libutil.h>
@@ -2654,6 +2656,15 @@
     if (nographic) {
         dumb_display_init(ds);
     } else {
+        Display *dpy;
+	dpy = XOpenDisplay(NULL);
+	if (!dpy) {
+            fprintf (stderr, "%s:  unable to open display \"%s\".\n",
+            argv[0], XDisplayName(NULL));
+            exit (1);
+        } else {
+            XCloseDisplay(dpy);
+        }
 #ifdef CONFIG_SDL
         sdl_display_init(ds);
 #else