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[x11] Use -1 as the default screen guard
Currently, the default screen guard value is 0, which is a valid screen number on X11, and it might not be the default. Patch suggested by: Owen W. Taylor <otaylor@redhat.com>
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@ -95,7 +95,7 @@ static Display *_foreign_dpy = NULL;
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/* options */
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/* options */
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static gchar *clutter_display_name = NULL;
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static gchar *clutter_display_name = NULL;
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static gint clutter_screen = 0;
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static gint clutter_screen = -1;
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static gboolean clutter_synchronise = FALSE;
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static gboolean clutter_synchronise = FALSE;
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/* X error trap */
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/* X error trap */
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@ -167,7 +167,7 @@ clutter_backend_x11_post_parse (ClutterBackend *backend,
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CLUTTER_NOTE (BACKEND, "Getting the X screen");
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CLUTTER_NOTE (BACKEND, "Getting the X screen");
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if (clutter_screen == 0)
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if (clutter_screen == -1)
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backend_x11->xscreen = DefaultScreenOfDisplay (backend_x11->xdpy);
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backend_x11->xscreen = DefaultScreenOfDisplay (backend_x11->xdpy);
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else
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else
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backend_x11->xscreen = ScreenOfDisplay (backend_x11->xdpy,
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backend_x11->xscreen = ScreenOfDisplay (backend_x11->xdpy,
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