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diff --git a/untracked/gio/giomm/dbusconnection.cc b/untracked/gio/giomm/dbusconnection.cc
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index 9ddeeb4..9701106 100644
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--- a/untracked/gio/giomm/dbusconnection.cc
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+++ b/untracked/gio/giomm/dbusconnection.cc
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@@ -494,7 +494,7 @@ Connection::send_message_with_reply(const Glib::RefPtr<Message>& message, int ti
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   const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable)
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 {
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   auto slot_copy = new SlotAsyncReady(slot);
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   g_dbus_connection_send_message_with_reply(gobj(), Glib::unwrap(message),
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     static_cast<GDBusSendMessageFlags>(message->get_flags()), timeout_msec, &out_serial,
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     Glib::unwrap(cancellable), &SignalProxy_async_callback, slot_copy);
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@@ -506,7 +506,7 @@ Connection::send_message_with_reply(
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   const Glib::RefPtr<Message>& message, int timeout_msec, const SlotAsyncReady& slot)
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 {
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   auto slot_copy = new SlotAsyncReady(slot);
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   g_dbus_connection_send_message_with_reply(gobj(), Glib::unwrap(message),
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     static_cast<GDBusSendMessageFlags>(message->get_flags()), timeout_msec, &out_serial, nullptr,
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     &SignalProxy_async_callback, slot_copy);
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@@ -517,7 +517,7 @@ Glib::RefPtr<Message>
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 Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message,
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   const Glib::RefPtr<Cancellable>& cancellable, gint timeout_msec)
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 {
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   GError* gerror = nullptr;
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   GDBusMessage* result = g_dbus_connection_send_message_with_reply_sync(gobj(),
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@@ -533,7 +533,7 @@ Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message,
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 Glib::RefPtr<Message>
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 Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message, gint timeout_msec)
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 {
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   GError* gerror = nullptr;
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   GDBusMessage* result = g_dbus_connection_send_message_with_reply_sync(gobj(),
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diff --git a/gio/src/dbusconnection.ccg b/gio/src/dbusconnection.ccg
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index e28e7b4..3d9860a 100644
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--- a/gio/src/dbusconnection.ccg
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+++ b/gio/src/dbusconnection.ccg
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@@ -477,7 +477,7 @@ Connection::send_message_with_reply(const Glib::RefPtr<Message>& message, int ti
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   const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable)
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 {
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   auto slot_copy = new SlotAsyncReady(slot);
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   g_dbus_connection_send_message_with_reply(gobj(), Glib::unwrap(message),
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     static_cast<GDBusSendMessageFlags>(message->get_flags()), timeout_msec, &out_serial,
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     Glib::unwrap(cancellable), &SignalProxy_async_callback, slot_copy);
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@@ -489,7 +489,7 @@ Connection::send_message_with_reply(
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   const Glib::RefPtr<Message>& message, int timeout_msec, const SlotAsyncReady& slot)
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 {
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   auto slot_copy = new SlotAsyncReady(slot);
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   g_dbus_connection_send_message_with_reply(gobj(), Glib::unwrap(message),
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     static_cast<GDBusSendMessageFlags>(message->get_flags()), timeout_msec, &out_serial, nullptr,
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     &SignalProxy_async_callback, slot_copy);
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@@ -500,7 +500,7 @@ Glib::RefPtr<Message>
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 Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message,
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   const Glib::RefPtr<Cancellable>& cancellable, gint timeout_msec)
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 {
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   GError* gerror = nullptr;
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   GDBusMessage* result = g_dbus_connection_send_message_with_reply_sync(gobj(),
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@@ -516,7 +516,7 @@ Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message,
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 Glib::RefPtr<Message>
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 Connection::send_message_with_reply_sync(const Glib::RefPtr<Message>& message, gint timeout_msec)
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 {
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-  volatile guint32 out_serial = 0;
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+  guint32 out_serial = 0;
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   GError* gerror = nullptr;
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   GDBusMessage* result = g_dbus_connection_send_message_with_reply_sync(gobj(),