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Use utimes instead of utimensat when !defined(UTIME_OMIT). Fixes build for older GLIBC versions

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@273088 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-06-18 17:37:04 +00:00
parent 880e38b206
commit 7840a8ca84
1 changed files with 3 additions and 1 deletions
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4
src/experimental/filesystem/operations.cpp
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@@ -507,8 +507,10 @@ void __last_write_time(const path& p, file_time_type new_time,
using namespace std::chrono;
std::error_code m_ec;
#if defined(__APPLE__)
// 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)
// This implementation has a race condition between determining the
// last access time and attempting to set it to the same value using
// ::utimes