+ * libatasmart (optional)
+ Used by the `smart' plugin.
+ <http://git.0pointer.de/?p=libatasmart.git>
+
+ * libcap (optional)
+ The `turbostat' plugin can optionally build Linux Capabilities support,
+ which avoids full privileges requirement (aka. running as root) to read
+ values.
+ <http://sites.google.com/site/fullycapable/>
+