@@ -364,7 +364,7 @@ function get_packages() {

 # GetOSVersion

 GetOSVersion() {

     # Figure out which vendor we are

-    if [[ -n "`which sw_vers 2>/dev/null`" ]]; then

+    if [[ -x "`which sw_vers 2>/dev/null`" ]]; then

         # OS/X

         os_VENDOR=`sw_vers -productName`

         os_RELEASE=`sw_vers -productVersion`