hoogle 4.2.43-2 (amd64 binary) in ubuntu xenial

 Hoogle is a Haskell API search engine, which allows you to
 search many standard Haskell libraries by either function name,
 or by approximate type signature.
 .
 This package contains the hoogle command and cgi settings.
 If you have a webserver installed, you can access the hoogle web interface at
 http://localhost/cgi-bin/hoogle.