Gzip filter: handling of empty flush buffers. Empty flush buffers are legitimate and may happen e.g. due to $r->flush() calls in embedded perl. If there are no data buffered in zlib, deflate() will return Z_BUF_ERROR (i.e. no progress possible) without adding anything to output. Don't treat Z_BUF_ERROR as fatal and correctly send empty flush buffer if we have no data in output at all. See this thread for details: http://mailman.nginx.org/pipermail/nginx/2010-November/023693.html

geo2nginx.pl 		by Andrei Nigmatulin

	The perl script to convert CSV geoip database ( free download
	at http://www.maxmind.com/app/geoip_country ) to format, suitable
	for use by the ngx_http_geo_module.


unicode2nginx		by Maxim Dounin

	The perl script to convert unicode mappings ( available
	at http://www.unicode.org/Public/MAPPINGS/ ) to the nginx
	configuration file format.
	Two generated full maps for windows-1251 and koi8-r.