+ * liboping (optional, if not found a version shipped with this distribution
+ can be used)
+ Used by the `ping' plugin to send and receive ICMP packets.
+
+ * libpcap (optional)
+ Used to capture packets by the `dns' plugin.
+
+ * 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 it's values via multicast and not create any RRD files itself.
+ Alternatively you can chose to write CSV-files (Comma Seperated Values)
+ instead.
+
+ * libsensors (optional)
+ To read from `lm_sensors'.