Merge topic 'update-kwsys'

ff0ddff7 Merge branch 'upstream-KWSys' into update-kwsys
d49b95b8 KWSys 2017-09-21 (ff912e4d)

Acked-by: Kitware Robot <[email protected]>
Merge-request: !1297

Source/kwsys/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 } };