Added workaround for old xcode compiler bug #3716
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…und for old xcode bugs
vitaut
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Nov 15, 2023
vitaut
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Nov 15, 2023
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Thank you |
happymonkey1
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Apr 7, 2024
* Added macros to disable std::filesystem and std::variant as a workaround for old xcode bugs * Change macro to positive logic
This was referenced May 30, 2025
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Looks like xcode12 is no longer supported by Homebrew. @kuguma is this workaround still needed? |
Yes. but I think it would be a good idea to sort this out in a new version of fmtlib. |
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Older xcode (at least xcode12) had a bug that defined macros for
__cpp_lib_filesystemand__cpp_lib_varianteven if the target did not support it.When building for a target lower than macOS 10.15 with c++17, fmtlib compilation failed. (https://developer.apple.com/xcode/cpp/#c++17)
As a workaround, I would like to add a flag to disable std::filesystem and std::variant.
This problem seems to have been fixed in the latest xcode15, but I don't think version checking is practical.
Similar issues in other projects: ToruNiina/toml11#150