Darwin: Future-proof -mmacosx-version-min
f18cbc1ee1
(2021-12-18) updated various parts of gcc to not impose a Darwin or macOS version maximum of the current known release. Different parts of gcc accept, variously, Darwin version numbers matching darwin2*, and macOS major version numbers up to 99. The current released version is Darwin 21 and macOS 12, with Darwin 22 and macOS 13 expected for public release later this year. With one major OS release per year, this strategy is expected to provide another 8 years of headroom. However,f18cbc1ee1
missed config/darwin-c.c (now .cc), which continued to impose a maximum of macOS 12 on the -mmacosx-version-min compiler driver argument. This was last updated from 11 to 12 in11b9675774
(2021-10-27), but kicking the can down the road one year at a time is not a viable strategy, and is not in line with the more recent technique fromf18cbc1ee1
. Prior to556ab51259
(2020-11-06), config/darwin-c.c did not impose a maximum that needed annual maintenance, as at that point, all macOS releases had used a major version of 10. The stricter approach imposed since then was valuable for a time until the particulars of the new versioning scheme were established and understood, but now that they are, it's prudent to restore a more permissive approach. gcc/ChangeLog: * config/darwin-c.cc: Make -mmacosx-version-min more future-proof. Signed-off-by: Mark Mentovai <mark@mentovai.com> (cherry picked from commit6725f186cb
)
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@ -691,7 +691,8 @@ macosx_version_as_macro (void)
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if (!version_array)
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goto fail;
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if (version_array[MAJOR] < 10 || version_array[MAJOR] > 12)
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/* System tools accept up to 99 as a major version. */
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if (version_array[MAJOR] < 10 || version_array[MAJOR] > 99)
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goto fail;
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if (version_array[MAJOR] == 10 && version_array[MINOR] < 10)
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