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Remove Apple specific guard for utimensat. Use !defined(UTIME_OMIT) instead.

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As pointed out by @majnemer this is a better way to detect utimensat on all
platforms. The Apple specific guard is unneeded.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@273093 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier 2016-06-18 19:11:40 +00:00
parent d9bca8ab7d
commit 2730c251ae
1 changed files with 4 additions and 5 deletions
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9
src/experimental/filesystem/operations.cpp
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@ -19,7 +19,7 @@
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <fcntl.h> /* values for fchmodat */
#if defined(__APPLE__)
#if !defined(UTIME_OMIT)
#include <sys/time.h> // for ::utimes as used in __last_write_time
#endif
@ -507,10 +507,9 @@ void __last_write_time(const path& p, file_time_type new_time,
using namespace std::chrono;
std::error_code m_ec;
// We can use the presence of UTIME_OMIT to detect GLIBC versions that
// do not provide utimensat.
// FIXME: Use utimensat when it becomes available on OS X.
#if defined(__APPLE__) || !defined(UTIME_OMIT)
// We can use the presence of UTIME_OMIT to detect platforms that do not
// provide utimensat.
#if !defined(UTIME_OMIT)
// This implementation has a race condition between determining the
// last access time and attempting to set it to the same value using
// ::utimes