contrib/exec-nagios.px: Use the environment variables for defaults.

[collectd.git] / README

diff --git a/README b/README
index ade430c..17b62d8 100644 (file)
--- a/README
+++ b/README
@@ -650,6 +650,10 @@ Prerequisites
     Parse JSON data. This is needed for the `curl_json' plugin.
     <http://github.com/lloyd/yajl>
 
+  * libvarnish (optional)
+     Fetches statistics from a Varnish instance. This is needed for the Varnish plugin
+     <http://varnish-cache.org>
+
 Configuring / Compiling / Installing
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