Adds that warning to configure.ac
Includes a tiny change of the GST_BOILERPLATE_FULL() macro:
The get_type() function is no longer declared before being defined.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
Original commit message from CVS:
Patch by: Rene Stadler <mail at renestadler de>
* gst/gsttagsetter.c: (gst_tag_setter_merge_tags):
Merging an empty list with another list in KEEP_ALL mode should
yield an empty list as result and not the second list (#512578).
* tests/check/gst/gsttagsetter.c:
Add unit test for tag merge modes and the aforementioned bug.