--- old/hotspot/src/share/vm/utilities/globalDefinitions_visCPP.hpp	2015-12-16 21:11:23.733735356 +0100
+++ new/hotspot/src/share/vm/utilities/globalDefinitions_visCPP.hpp	2015-12-16 21:11:23.617735354 +0100
@@ -195,6 +195,7 @@
 #pragma warning( disable : 4996 ) // unsafe string functions. Same as define _CRT_SECURE_NO_WARNINGS/_CRT_SECURE_NO_DEPRICATE
 #endif
 
+#if _MSC_VER <= 1800
 inline int vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) {
   // If number of characters written == count, Windows doesn't write a
   // terminating NULL, so we do it ourselves.
@@ -202,6 +203,7 @@
   if (count > 0) buf[count-1] = '\0';
   return ret;
 }
+#endif
 
 // Portability macros
 #define PRAGMA_INTERFACE