Configure Obj-C to fail with partial-availability
Configure Obj-C to fail with partial-availability

This is quite drastic but will avoid some silent failures on old OS X
versions, like 10.7

Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc