[Chrono][Darwin] Include header for gettimeofday
Followup on r291466 and include the proper header. This fixes:
https://build.chromium.org/p/chromium.fyi/builders/ClangToTMac/builds/12620/steps/gclient%20runhooks/logs/stdio
llvm-svn: 291517
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: d7849a6c837643005b104b1f0283ee677a16e97d
diff --git a/src/chrono.cpp b/src/chrono.cpp
index df5cabd..9b277a6 100644
--- a/src/chrono.cpp
+++ b/src/chrono.cpp
@@ -42,7 +42,7 @@
#include <winapifamily.h>
#endif
#else
-#if !defined(CLOCK_REALTIME)
+#if !defined(CLOCK_REALTIME) || !defined(_LIBCXX_USE_CLOCK_GETTIME)
#include <sys/time.h> // for gettimeofday and timeval
#endif // !defined(CLOCK_REALTIME)
#endif // defined(_LIBCPP_WIN32API)