anchor.diff:      libsoup
       libxml2
       libxslt
  -    mysql
  +    mariadb-connector-c
       ncurses
       openldap
       openssl
  
positive.code: , libsoup
  , libxml2
  , libxslt
  , mysql
  , ncurses
  , openldap
  , openssl
  
negative.code:     "--disable-goocanvas"
      (wtFlag "graphviz" (graphviz != null) null)
      (wtFlag "bdb" (db != null) null)
      (wtFlag "mysql" (mariadb-connector-c != null) null)
      (wtFlag "postgres" (postgresql != null) null)
      "--without-oracle"
      # TODO: java support
  