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wayland: don't init if XDG_RUNTIME_DIR missing

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wayland doesn't strictly follow the XDG_RUNTIME_DIR spec by falling back
to another directory in case the runtime dir is not properly set.

When this variable is unset, wayland will log an error to us, which we
treat as fatal, aborting the entire program.

Skip ourselves all the trouble and don't try to bring up the wayland
backend when we know it will fail in this way.

https://bugzilla.gnome.org/show_bug.cgi?id=738873
This commit is contained in:
Ryan Lortie 2014-10-20 17:16:22 -04:00
parent 45288ec40c
commit 6d7f5d4431
1 changed files with 7 additions and 0 deletions
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7
gdk/wayland/gdkdisplay-wayland.c
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@ -217,6 +217,13 @@ _gdk_wayland_display_open (const gchar *display_name)
GdkDisplay *display;
GdkWaylandDisplay *display_wayland;
/* If this variable is unset then wayland initialisation will surely
* fail, logging a fatal error in the process. Save ourselves from
* that.
*/
if (g_getenv ("XDG_RUNTIME_DIR") == NULL)
return NULL;
wl_log_set_handler_client(log_handler);
wl_display = wl_display_connect(display_name);