commit 2567ea846eb167ef0d92c0470aa71bd0877ff45f
author Martin Storsjö <martin@martin.st> Wed Jun 16 15:22:28 2021 +0300
committer Copybara-Service <copybara-worker@google.com> Thu Jun 17 03:05:58 2021 -0700
tree 1b5c3a12d50c481f47aa4227a075c8399dfaf66a
parent 02fbd4e3272940ed0c74539f75abbaf5cf1b84f2

[libcxx] Fix a case of -Wundef warnings regarding _POSIX_TIMERS

Differential Revision: https://reviews.llvm.org/D104372

NOKEYCHECK=True
GitOrigin-RevId: d7550e5d105f998ea34bd6c51c03d37a8c546025

src/chrono.cpp

diff --git a/src/chrono.cpp b/src/chrono.cpp
index 096fce3..13b3759 100644
--- a/src/chrono.cpp
+++ b/src/chrono.cpp
@@ -31,7 +31,7 @@
 # include <sys/time.h> // for gettimeofday and timeval
 #endif
 
-#if !defined(__APPLE__) && _POSIX_TIMERS > 0
+#if !defined(__APPLE__) && defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
 # define _LIBCPP_USE_CLOCK_GETTIME
 #endif