URL:
<https://savannah.gnu.org/support/?111067>
Summary: Darwin OS versions & API version
Group: Autoconf
Submitter: sevan
Submitted: Sun 19 May 2024 01:20:57 PM UTC
Priority: 5 - Unprioritized
Severity: 1 - Wish
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Operating System: Mac OS
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Follow-up Comments:
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Date: Sun 19 May 2024 01:20:57 PM UTC By: Sevan Janiyan <sevan>
Apple includes AvailabilityMacros.h for targeting OS versions with
MAC_OS_X_VERSION_MIN_REQUIRED & MAC_OS_X_VERSION_MAX_ALLOWED macros. This
header has been a part of Darwin since 6.x (OS X 10.2) and a more recent
Availability.h for API availabilty based on targeted OS version (which OS
version an API was introduced & deprecated), since Darwin 9 (OS X 10.5).
A common idiom is to do an ifdef dance for __APPLE__ && __MACH__ before
including these headers. Could autoconf probe for them by default and provide
a symbol since they are a standard part of the OS and have been around for
some time. It would make it easier for autoconf users & folks who package for
Darwin to patch software.
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