[gtk+] settings: Avoid a segfault when loading keyfile

[Benjamin Otte <otte src gnome org>]

commit 399dc74d74d4996da886e6fd1ecf0c8b3905eb05
Author: Benjamin Otte <otte redhat com>
Date:   Wed Mar 2 16:21:44 2011 +0100

    settings: Avoid a segfault when loading keyfile
    
    When the keyfile is loaded, no screen exists yet, so we need to vheck
    for that.

 gtk/gtksettings.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 44fe5c6..e254406 100644
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -2671,7 +2671,7 @@ settings_update_color_scheme (GtkSettings *settings)
                               data, (GDestroyNotify) color_scheme_data_free);
 
       g_value_init (&value, G_TYPE_STRING);
-      if (gdk_screen_get_setting (priv->screen, "gtk-color-scheme", &value))
+      if (priv->screen && gdk_screen_get_setting (priv->screen, "gtk-color-scheme", &value))
         {
           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
           g_value_unset (&value);