(define port-feature
  (if (version>=? (chicken-version) "4.6.0")
      "-Dhas-port-closed" ""))

(compile -s -O2 ,port-feature http-client.scm -j http-client)
(compile -s -O2 http-client.import.scm)

(install-extension
  'http-client
  '("http-client.so" "http-client.import.so")
  `((version "0.7.1")
    (documentation "http-client.html")))