g_io_channel_seek() offset

[Owen Taylor <otaylor redhat com>]

What do people think about

GIOError  g_io_channel_seek     (GIOChannel    *channel,
-			         glong          offset, 
+			         gint64         offset, 
			         GSeekType      type);

Shouldn't break source compatibility, we now make int64 support
mandatory. (And we don't provide public API for creating
new IO channel types so, the corresponding vtable entries rqaen't
a problem.)

See:

 http://bugzilla.gnome.org/show_bug.cgi?id=71410

Regards,
                                        Owen