state of the examples:

appreader
controller
  okay
cutter
events
helloworld
helloworld2
manual
metadata
mixer
pingpong
plugins
pwg
queue
queue2
queue3
queue4
retag
typefind
xml

----

appreader
  gst_bin_iterate

cutter
  gst_bin_iterate

events
  gst_bin_iterate
  gst_event_new_seek
  gst_event_new_flush

helloworld
  GstAutoplug

manual
  dynamic
    gst_registry_pool_feature_filter

mixer
  gst_bin_iterate
  gst_scheduler_show
  gst_element_add_ghost_pad

pingpong
  gst_bin_iterate
  gst_element_add_ghost_pad
  gst_element_default_deep_notify

plugins
  lots of errors

pwg
  lots of errors

retag
  gst_tag_setter_
  gst_bin_iterate

thread
  obsolete, uses gst_thread_new