[gimp] app: Don't create empty dock windows when switching off swm

[Martin Nordholts <martinn src gnome org>]

commit 875471d6bd6e426c924cca7bdbf797c98470448c
Author: Martin Nordholts <martinn src gnome org>
Date:   Fri Aug 5 01:48:43 2011 +0200

    app: Don't create empty dock windows when switching off swm

 app/gui/gimpuiconfigurer.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/app/gui/gimpuiconfigurer.c b/app/gui/gimpuiconfigurer.c
index abe503b..fcacd1a 100644
--- a/app/gui/gimpuiconfigurer.c
+++ b/app/gui/gimpuiconfigurer.c
@@ -335,6 +335,10 @@ gimp_ui_configurer_move_docks_to_window (GimpUIConfigurer  *ui_configurer,
   GtkWidget    *dock_window      = NULL;
   GtkAllocation original_size    = { 0, 0, 0, 0 };
 
+  /* Are there docks to move at all? */
+  if (! docks)
+    return;
+
   /* Remember the size so we can set the new dock window to the same
    * size
    */