diff -ru cpucounters.cpp cpucounters.cpp
--- cpucounters.cpp	2013-11-04 05:43:31.000000000 -0700
+++ cpucounters.cpp	2014-03-07 05:47:24.000000000 -0700
@@ -681,7 +681,7 @@
     else
         apic_ids_per_core = 1;
 
-    for (i = 0; i < num_cores; i++)
+    for (int i = 0; i < num_cores; i++)
     {
         char cpuctl_name[64];
         int apic_id;