- * librrd (optional; headers and library; rrdtool 1.0 and 1.2 both work fine)
- If built without `librrd' the resulting binary will be `client only', i.e.
- will send its values via multicast and not create any RRD files itself.
- Alternatively you can chose to write CSV-files (Comma Separated Values)
- instead.
+ * librrd (optional)
+ Used by the `rrdtool' and `rrdcached' plugins. The latter requires RRDtool
+ client support which was added after version 1.3 of RRDtool. Versions 1.0,
+ 1.2 and 1.3 are known to work with the `rrdtool' plugin.
+ <http://oss.oetiker.ch/rrdtool/>
+
+ * librt, libsocket, libkstat, libdevinfo (optional)
+ Various standard Solaris libraries which provide system functions.
+ <http://developers.sun.com/solaris/>