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