tself according to the findings of the
    main PostgreSQL <code class="literal">configure</code> script.  The options that
    affect it are <code class="literal">--with-zlib</code> and
    <code class="literal">--with-ssl=openssl</code>.
   </p><p>
    When compiled with zlib, PGP encryption functions are able to
    compress data before encrypting.
   </p><p>
    <code class="filename">pgcrypto</code> requires <span class="productname">OpenSSL</span>.
    Otherwise, it will not be built or installed.
   