Index: cmake/modules/DetectX86CPUArchitecture.c
===================================================================
--- cmake/modules/DetectX86CPUArchitecture.c
+++ cmake/modules/DetectX86CPUArchitecture.c
@@ -91,6 +91,9 @@
       case 14:
         printf("core");
         break;
+      default:
+        printf("unknown");
+        return 1;
       }
       break;
     case 7: