[gtk+] wayland: Improve the error reporting in the Cairo GL surface code path

[Rob Bradford <rbradford src gnome org>]

commit 1aa2a7f8212cb7679c68e0f07544670a1103a3e2
Author: Rob Bradford <rob linux intel com>
Date:   Thu Apr 19 17:25:56 2012 +0100

    wayland: Improve the error reporting in the Cairo GL surface code path

 gdk/wayland/gdkwindow-wayland.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index bedca4b..3448bbc 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -394,6 +394,7 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
 {
   GdkWaylandCairoSurfaceData *data;
   cairo_surface_t *surface;
+  cairo_status_t status;
 
   data = g_new (GdkWaylandCairoSurfaceData, 1);
   data->display = display;
@@ -418,8 +419,13 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
   cairo_surface_set_user_data (surface, &gdk_wayland_cairo_key,
 			       data, gdk_wayland_cairo_surface_destroy);
 
-  if (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
-    fprintf (stderr, "create gl surface failed\n");
+  status = cairo_surface_status (surface);
+  if (status != CAIRO_STATUS_SUCCESS)
+    {
+      g_critical (G_STRLOC ": Unable to create Cairo GL surface: %s",
+                  cairo_status_to_string (status));
+
+    }
 
   if (!data->buffer)
     data->buffer =