[gtk] Don't load print backends more than once

[Matthias Clasen <matthiasc src gnome org>]

commit cfe648eb11a1f6710e106da5525d92dcf4f17c43
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 27 12:59:36 2019 +0000

    Don't load print backends more than once
    
    The modules don't depend on the default display
    at all, and loading them more than once makes
    the displayclose test fail here, locally.

 gtk/gtkmain.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 2006c0d862..d4d79f650e 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -642,11 +642,6 @@ static void
 default_display_notify_cb (GdkDisplayManager *dm)
 {
   debug_flags[0].display = gdk_display_get_default ();
-#ifdef G_OS_UNIX
-  gtk_print_backends_init ();
-#endif
-  gtk_im_modules_init ();
-  gtk_media_file_extension_init ();
   _gtk_accessibility_init ();
 }
 
@@ -673,6 +668,12 @@ do_post_parse_initialization (void)
 
   gtk_initialized = TRUE;
 
+#ifdef G_OS_UNIX
+  gtk_print_backends_init ();
+#endif
+  gtk_im_modules_init ();
+  gtk_media_file_extension_init ();
+
   display_manager = gdk_display_manager_get ();
   if (gdk_display_manager_get_default_display (display_manager) != NULL)
     default_display_notify_cb (display_manager);