Stop losing extra audio tracks after the first one

```--
  CC       os2/specific.lo
os2/specific.c: In function 'IPCHelperThread':
os2/specific.c:57:5: error: implicit declaration of function 'pl_Get' [-Werror=implicit-function-declaration]
os2/specific.c:57:30: warning: initialization makes pointer from integer without a cast [enabled by default]
cc1: some warnings being treated as errors
```

--
Signed-off-by: Francois Cartegnie <fcvlcdev@free.fr>

```--
  CC       addons/vorepository.lo
addons/vorepository.c: In function 'Close':
addons/vorepository.c:490:9: error: implicit declaration of function 'unlink' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
```

--
Signed-off-by: Francois Cartegnie <fcvlcdev@free.fr>

All our private context end in sys_t
Do the same for elementary stream specific context inside sout modules

Signed-off-by: Ilkka Ollakka <ileoo@videolan.org>

Fixes #5864
Signed-off-by: Ilkka Ollakka <ileoo@videolan.org>

That inexplicably got merged even though it was rejected upon review.
This simplification follows afe774e0.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Really unlikely
cid #1174897
cid #1174898
cid #1174899

cid #1174899

win32 can't rename a still open fd

fixes Win32 installs

macosx/addon manager: revert xib file to the Interface Builder 3.2 format to fix compilation on jones

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Partially reverts commit 79295631.