New submission from Isuru Fernando <isu...@gmail.com>:
In macOS Big Sur, if the executable was compiled with
MACOSX_DEPLOYMENT_TARGET=10.15
or below, then SYSTEM_VERSION_COMPAT=1 is the default which means that Big Sur
reports itself as 10.16 which in turn means that __builtin_available(macOS 11.0)
will not be triggered.
This can be observed by using the python 3.9.1 universal2 installer and using
it on
x86_64 Big Sur or with Rossetta 2 on arm64 Big Sur. (Not an issue with native
arm64
as that part is compiled with MACOSX_DEPLOYMENT_TARGET=11.0)
Original issue is that the following returned None.
SYSTEM_VERSION_COMPAT=1 arch -x86_64 /usr/local/bin/python3 -c "from
ctypes.util import find_library; print(find_library('AppKit'))"
----------
messages: 385845
nosy: isuruf, ned.deily, ronaldoussoren
priority: normal
pull_requests: 23185
severity: normal
status: open
title: _dyld_shared_cache_contains_path needs SYSTEM_VERSION_COMPAT=0
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue43052>
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