Index: projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.h
===================================================================
--- projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.h
+++ projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.h
@@ -27,6 +27,7 @@
   MACOS_VERSION_MOUNTAIN_LION,
   MACOS_VERSION_MAVERICKS,
   MACOS_VERSION_YOSEMITE,
+  MACOS_VERSION_UNKNOWN_NEWER
 };
 
 MacosVersion GetMacosVersion();
Index: projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
===================================================================
--- projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
+++ projects/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
@@ -298,6 +298,11 @@
         case '2': return MACOS_VERSION_MOUNTAIN_LION;
         case '3': return MACOS_VERSION_MAVERICKS;
         case '4': return MACOS_VERSION_YOSEMITE;
+        case '5':
+        case '6':
+        case '7':
+        case '8':
+        case '9': return MACOS_VERSION_UNKNOWN_NEWER;
         default: return MACOS_VERSION_UNKNOWN;
       }
     }