--- ax_count_cpus.m4	2012-01-04 08:58:35.435082000 -0700
+++ ax_count_cpus.m4.fix	2012-01-04 12:05:06.669901000 -0700
@@ -31,8 +31,10 @@
     CPU_COUNT="0"
 
     #On MacOS
-    if test -x /usr/sbin/sysctl -a `/sbin/sysctl -a 2>/dev/null| grep -c hw.cpu`; then
-        CPU_COUNT=`/usr/sbin/sysctl -n hw.ncpu`
+    if test -x /usr/sbin/sysctl; then
+        if test `/usr/sbin/sysctl -a 2>/dev/null| grep -c hw.cpu`; then
+            CPU_COUNT=`/usr/sbin/sysctl -n hw.ncpu`
+        fi
     fi
 
     #On Linux
