--- a/GKlib/gk_arch.h	Wed Dec 21 18:34:18 2016
+++ b/GKlib/gk_arch.h	Wed Dec 21 18:30:49 2016
@@ -58,7 +58,7 @@
 #define PTRDIFF_MAX  INT64_MAX
 #endif
 
-#ifdef __MSC__
+#if defined(__MSC__) && (_MSC_VER < 1900)
 /* MSC does not have rint() function */
 #define rint(x) ((int)((x)+0.5))  
 
