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[libcxx] Fix compiling for macOS versions before 10.13 #126669

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[libcxx] Fix compiling for macOS versions before 10.13 #126669

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8 changes: 7 additions & 1 deletion libcxx/src/filesystem/time_utils.h
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,14 @@
# include <sys/time.h> // for ::utimes as used in __last_write_time
#endif

// MacOS version 10.13 introduces utimensat
#if defined(__APPLE__)
# if (defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101300)
# define _LIBCPP_USE_UTIMENSAT
# endif
// We can use the presence of UTIME_OMIT to detect platforms that provide utimensat.
#if defined(UTIME_OMIT)
#elif defined(UTIME_OMIT)
# define _LIBCPP_USE_UTIMENSAT
#endif

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