Script nfclean.pl is installed in examples/ directory and can be used to clean
up files nfcapd created. For a detailed description read nfclean.pl.

HOWTO enable optional sflow and/or flow-tools support:
$ apt-get source nfdump

sflow: create sflow-tools and sflow-tools-dev debian packages. Install these packages enable configure argument in debian/rules and rebuild nfdump.

flow-tools: install flow-tools-dev and enable configure parameter in debian/rules and rebuild nfdump.

The package currently contains patches that are not in upstream release:
05_division-by-zero.patch