--- a/src/glib-1-fixes.patch	Mon Jul 15 08:31:51 2019 -0400
+++ b/src/glib-1-fixes.patch	Tue Jul 16 15:54:05 2019 -0400
@@ -641,3 +641,65 @@
  #ifdef G_OS_WIN32
        g_type_ensure (_g_winhttp_vfs_get_type ());
 #endif
+
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ernestas Kulik <ekulik@redhat.com>
+Date: Tue, 29 Jan 2019 09:50:46 +0100
+Subject: [PATCH 10/10] gdbus: Avoid printing null strings
+
+This mostly affects the 2.56 branch, but, given that GCC 9 is being
+stricter about passing null string pointers to printf-like functions, it
+might make sense to proactively fix such calls.
+
+gdbusauth.c: In function '_g_dbus_auth_run_server':
+gdbusauth.c:1302:11: error: '%s' directive argument is null
+[-Werror=format-overflow=]
+ 1302 |           debug_print ("SERVER: WaitingForBegin, read '%s'",
+ line);
+       |
+
+gdbusmessage.c: In function ‘g_dbus_message_to_blob’:
+gdbusmessage.c:2730:30: error: ‘%s’ directive argument is null [-Werror=format-overflow=]
+ 2730 |       tupled_signature_str = g_strdup_printf ("(%s)", signature_str);
+      |
+
+diff --git a/gio/gdbusauth.c b/gio/gdbusauth.c
+index 1111111..2222222 100644
+--- a/gio/gdbusauth.c
++++ b/gio/gdbusauth.c
+@@ -1295,9 +1295,9 @@ _g_dbus_auth_run_server (GDBusAuth              *auth,
+                                                     &line_length,
+                                                     cancellable,
+                                                     error);
+-          debug_print ("SERVER: WaitingForBegin, read '%s'", line);
+           if (line == NULL)
+             goto out;
++          debug_print ("SERVER: WaitingForBegin, read '%s'", line);
+           if (g_strcmp0 (line, "BEGIN") == 0)
+             {
+               /* YAY, done! */
+diff --git a/gio/gdbusmessage.c b/gio/gdbusmessage.c
+index 1111111..2222222 100644
+--- a/gio/gdbusmessage.c
++++ b/gio/gdbusmessage.c
+@@ -2695,7 +2695,6 @@ g_dbus_message_to_blob (GDBusMessage          *message,
+   if (message->body != NULL)
+     {
+       gchar *tupled_signature_str;
+-      tupled_signature_str = g_strdup_printf ("(%s)", signature_str);
+       if (signature == NULL)
+         {
+           g_set_error (error,
+@@ -2703,10 +2702,10 @@ g_dbus_message_to_blob (GDBusMessage          *message,
+                        G_IO_ERROR_INVALID_ARGUMENT,
+                        _("Message body has signature '%s' but there is no signature header"),
+                        signature_str);
+-          g_free (tupled_signature_str);
+           goto out;
+         }
+-      else if (g_strcmp0 (tupled_signature_str, g_variant_get_type_string (message->body)) != 0)
++      tupled_signature_str = g_strdup_printf ("(%s)", signature_str);
++      if (g_strcmp0 (tupled_signature_str, g_variant_get_type_string (message->body)) != 0)
+         {
+           g_set_error (error,
+                        G_IO_ERROR,