macOS versions older than 12.0 are no longer supported.

docs/about/build-platforms.rst says:
> Support for the previous major version will be dropped 2 years after
> the new major version is released or when the vendor itself drops
> support, whichever comes first.

macOS 12.0 was released 2021:
https://www.apple.com/newsroom/2021/10/macos-monterey-is-now-available/

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 block/file-posix.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/block/file-posix.c b/block/file-posix.c
index be25e35ff6ef..29c7aaade8a8 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3929,11 +3929,6 @@ BlockDriver bdrv_file = {
 static kern_return_t GetBSDPath(io_iterator_t mediaIterator, char *bsdPath,
                                 CFIndex maxPathSize, int flags);
 
-#if !defined(MAC_OS_VERSION_12_0) \
-    || (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_VERSION_12_0)
-#define IOMainPort IOMasterPort
-#endif
-
 static char *FindEjectableOpticalMedia(io_iterator_t *mediaIterator)
 {
     kern_return_t kernResult = KERN_FAILURE;

-- 
2.45.2

On 29/6/24 08:24, Akihiko Odaki wrote:
> macOS versions older than 12.0 are no longer supported.
> 
> docs/about/build-platforms.rst says:
>> Support for the previous major version will be dropped 2 years after
>> the new major version is released or when the vendor itself drops
>> support, whichever comes first.
> 
> macOS 12.0 was released 2021:
> https://www.apple.com/newsroom/2021/10/macos-monterey-is-now-available/
> 
> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> ---
>   block/file-posix.c | 5 -----
>   1 file changed, 5 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>