Installation output for spiffy-uri-match [fail]

/home/mario/local/chicken-4.8.0.3/bin/chicken-install -r  -prefix /home/mario/salmonella/4.8.0.3/4/repo -test spiffy-uri-match
retrieving ...
connecting to host "chicken.kitten-technologies.co.uk", port 80 ...
requesting "/henrietta.cgi?name=spiffy-uri-match&mode=default&tests=yes" ...
reading response ...
HTTP/1.1 200 OK
Date: Thu, 28 Feb 2013 11:52:19 GMT
Server: Apache/2.2.19 (Unix) mod_ssl/2.2.19 OpenSSL/0.9.9-dev DAV/2 SVN/1.6.17 PHP/5.2.17 mod_fastcgi/2.4.6
Connection: close
Transfer-Encoding: chunked
Content-Type: text/plain
reading chunks .
reading files ...


Error: extension or version not found