On 2026-08-04 17:01, Stephen Hutchinson via ffmpeg-devel wrote:
The #ifdef in question:
# if defined(__MAC_OS_X_VERSION_MAX_ALLOWED) &&
__MAC_OS_X_VERSION_MAX_ALLOWED >= 120000
# define AVF_IO_MAIN_PORT_DEFAULT kIOMainPortDefault
# else
# define AVF_IO_MAIN_PORT_DEFAULT kIOMasterPortDefault
# endif
I'm not sure setting _MAX_ALLOWED to anything here is the correct check
(as that reads to me that it unconditionally enables kIOMainPortDefault
as the alias and never drops to the #else condition), versus using
_MIN_ALLOWED or a different API check entirely.
Or it is supposed to work correctly due to weird naming conventions in
the SDK, but depends on -mmacosx-version-min= being set in the
CFLAGS/LDFLAGS instead of/in addition to using the
MACOSX_DEPLOYMENT_TARGET environment variable.
I think the author of the commit would have to answer this.
Afaik here is no difference between setting the MACOSX_DEPLOYMENT_TARGET env var
or using the -mmacosx-version-min=X argument.
Cheers,
K. C.
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