alloca() was not used anyway on OSX and BSD, due to smaller stack sizes,
and we can't assume a default stack size anyway

I expect the performance loss to be minimal, but worth the code
simplification anyway (i didn't benchmark)

aout_BufferAlloc() is moved into its own function in a .c file instead
of being a macro

Since there is now 2 types of allocations (HEAP and NONE), make
i_alloc_type a boolean (true = HEAP alloc, false = NO alloc)

make aout_BufferFree() a static inline function in the same process.
Prototype doesn't change since the provided buffer doesn't need to be
set to NULL (I checked all the callers)

Signed-off-by: Rémi Duraffort <ivoire@videolan.org>

python: fix undefined/badly defined method bindings (reported by Xitij Patel <xitij.patel@xitijpatel.com>)

contribs: fixed correct package selection for x86_64 on Darwin broken in [c1bc979e]

The enormous mac patch is discarded. But we couldn't stay with such an old version anyway.

Otherwise, the seek command would unpause the stream and that's not
what vlc is expecting.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

There is a bug in AStreamSeekStream that is causing all input modules
that support CAN_SEEK to be treated as CAN_FASTSEEK.  This in turn
causes far too many seeks in slower seeking sources which results in
performance problems when playing video.  The fix is a simple change of
CAN_SEEK to CAN_FASTSEEK.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>