From aa9f3a82b2c4f0fa1016908c58a375eba185f2d9 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 20 Sep 2017 09:56:59 -0400
Subject: [PATCH] macOS: Account for deployment target when checking for
utimensat
The SDK for macOS 10.13 adds `utimensat`, but the symbol is not
available at runtime on older macOS versions. Check the deployment
target before using the symbol.
Issue: cmake/cmake#17101
---
kwsysPlatformTestsCXX.cxx | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/kwsysPlatformTestsCXX.cxx b/kwsysPlatformTestsCXX.cxx
index 01c69514..e67d4366 100644
--- a/kwsysPlatformTestsCXX.cxx
+++ b/kwsysPlatformTestsCXX.cxx
@@ -265,6 +265,12 @@ int main()
#ifdef TEST_KWSYS_CXX_HAS_UTIMENSAT
#include <fcntl.h>
#include <sys/stat.h>
+#if defined(__APPLE__)
+#include <AvailabilityMacros.h>
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101300
+#error "utimensat not available on macOS < 10.13"
+#endif
+#endif
int main()
{
struct timespec times[2] = { { 0, UTIME_OMIT }, { 0, UTIME_NOW } };
--
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