[totem] main: Add guards for XInitThreads() calls

[Bastien Nocera <hadess src gnome org>]

commit 26a564c99a4dd414ee4014e524e371188769a4e6
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Mar 29 04:10:14 2012 +0200

    main: Add guards for XInitThreads() calls

 src/backend/bvw-test.c |    7 ++++++-
 src/totem.c            |    7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/src/backend/bvw-test.c b/src/backend/bvw-test.c
index 0f6b3a5..d24ddfa 100644
--- a/src/backend/bvw-test.c
+++ b/src/backend/bvw-test.c
@@ -5,6 +5,7 @@
 #include <gdk/gdk.h>
 #include "bacon-video-widget.h"
 #ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
 #include <X11/Xlib.h>
 #endif
 
@@ -78,7 +79,11 @@ int main
 	GtkWidget *win, *bvw;
 
 #ifdef GDK_WINDOWING_X11
-	XInitThreads ();
+	GdkDisplay *display;
+
+	display = gdk_display_get_default ();
+	if (GDK_IS_X11_DISPLAY (display))
+		XInitThreads ();
 #endif
 
 	context = g_option_context_new ("- Play audio and video inside a web browser");
diff --git a/src/totem.c b/src/totem.c
index 2de9dd8..36c30c0 100644
--- a/src/totem.c
+++ b/src/totem.c
@@ -231,13 +231,18 @@ main (int argc, char **argv)
 {
 	Totem *totem;
 	GtkSettings *gtk_settings;
+#ifdef GDK_WINDOWING_X11
+	GdkDisplay *display;
+#endif
 
 	bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
 	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 	textdomain (GETTEXT_PACKAGE);
 
 #ifdef GDK_WINDOWING_X11
-	if (XInitThreads () == 0)
+	display = gdk_display_get_default ();
+	if (GDK_IS_X11_DISPLAY (display) &&
+	    XInitThreads () == 0)
 	{
 		gtk_init (&argc, &argv);
 		g_set_application_name (_("Totem Movie Player"));