Merge topic 'update-kwsys' into release-3.21

115152ce10 KWSys: SystemTools: Ensure Windows Vista APIs are available before using them

Acked-by: Kitware Robot <[email protected]>
Acked-by: buildbot <[email protected]>
Merge-request: !6500

Source/kwsys/SystemTools.cxx

@@ -14,6 +14,10 @@
 #  endif
 #endif
 
+#if defined(_WIN32) && !defined(_WIN32_WINNT)
+#  define _WIN32_WINNT _WIN32_WINNT_VISTA
+#endif
+
 #include "kwsysPrivate.h"
 #include KWSYS_HEADER(RegularExpression.hxx)
 #include KWSYS_HEADER(SystemTools.hxx)