opaque types in C

 Anyone looking at blfs-dev will have noticed I've been having fun
with xine-ui [ Open -> File, via the right mouse button, not working
in 0.99.7 ].  I'll be talking to upstream, but I'm still at a loss
to understand what has happened.

 There is status attached to xine streams.  This is manipuliated by
the xine engine in xine-lib.  For users such as xine-ui it is an
incomplete data type and therefore I can't print its value in
xine-ui files (although I can test it against the known values).

 So, nothing in xine-ui can change this opaque data, right ?

 What is baffling me is that the first change where the status is
altered only moves logo files to a different source directory.

 But after instrumenting the code to find out where it was failing,
I find that all tested versions from that changeset to the current hg
version only work in 'Open -> File' if I change a test from
'== XINE_STATUS_STOP' to '== XINE_STATUS_PLAY' (and doing this
doesn't seem to affect how they work when a file is passed to xine,
or if the MRL browser is used to select a file).

 But this seems impossible.  Anyone recall anything that ever looked
at all like this problem ?  I think I'm heading for breakfast at
Milliways ¹

 To be clear, xine-lib is the same version for all of this, 0.99.6
works fine, as do all tested versions before that first problematic
changeset.

ĸen

¹ : if you don't understand the phrase, see
http://www.urbandictionary.com/define.php?term=Milliways&defid=820286
-- 
das eine Mal als Tragödie, das andere Mal als Farce
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