[gtk+] Mention of -rdynamic in GtkBuilder lookup error

[Ryan Lortie <ryanl src gnome org>]

commit 3bb059b6e869b8d4c8d5dda2b16fbc95347e0313
Author: Ryan Lortie <desrt desrt ca>
Date:   Sat Jul 27 18:15:17 2013 -0400

    Mention of -rdynamic in GtkBuilder lookup error
    
    We toss a g_warning() if we can't find the user's signal handler.  A good chunk
    of the time this will be because they didn't use -rdynamic.  Add a note about
    that.

 gtk/gtkbuilder.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkbuilder.c b/gtk/gtkbuilder.c
index 1006619..5e3af21 100644
--- a/gtk/gtkbuilder.c
+++ b/gtk/gtkbuilder.c
@@ -1579,7 +1579,7 @@ gtk_builder_connect_signals_default (GtkBuilder    *builder,
   
       if (!g_module_symbol (args->module, handler_name, (gpointer)&func))
        {
-         g_warning ("Could not find signal handler '%s'", handler_name);
+         g_warning ("Could not find signal handler '%s'.  Did you compile with -rdynamic?", handler_name);
          return;
        }
     }