maxCodeLen in the doublemetaphone solr analyzer

[Brian Whitman]

I want to change the maxCodeLen param that is in Solr 1.3's doublemetaphone
plugin. Doc is here:
http://commons.apache.org/codec/apidocs/org/apache/commons/codec/language/DoubleMetaphone.html
Is this something I can do in solrconfig or do I need to change it and
recompile?