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authorEric Fiselier <eric@efcs.ca>2016-06-18 17:37:04 +0000
committerEric Fiselier <eric@efcs.ca>2016-06-18 17:37:04 +0000
commitd9ed9c462b62fdf374e809a14ce1ada2b7653c06 (patch)
tree4ccd154311d625e4b25782a23d03f336acecf8e1 /libcxx/src/experimental/filesystem/operations.cpp
parentb2016787637860b16832c67ec5f448d3084f17a0 (diff)
downloadbcm5719-llvm-d9ed9c462b62fdf374e809a14ce1ada2b7653c06.tar.gz
bcm5719-llvm-d9ed9c462b62fdf374e809a14ce1ada2b7653c06.zip
Use utimes instead of utimensat when !defined(UTIME_OMIT). Fixes build for older GLIBC versions
llvm-svn: 273088
Diffstat (limited to 'libcxx/src/experimental/filesystem/operations.cpp')
-rw-r--r--libcxx/src/experimental/filesystem/operations.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/libcxx/src/experimental/filesystem/operations.cpp b/libcxx/src/experimental/filesystem/operations.cpp
index f92b0f7bac1..ebaadf4044e 100644
--- a/libcxx/src/experimental/filesystem/operations.cpp
+++ b/libcxx/src/experimental/filesystem/operations.cpp
@@ -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
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