</listitem>
      </varlistentry>

     </variablelist>

   </sect3>

   <sect3 id="configure-options-anti-features">
    <title>Anti-Features</title>

    <para>
     The options described in this section allow disabling
     certain <productname>PostgreSQL</productname> features that are built
     by default, but which might need to be turned off if the required
     software or system features are not available.  Using these options is
     not recommended unless really necessary.
    </para>

     <variablelist>

      <varlistentry id="configure-option-without-icu">
       <term><option>--without-icu</option></term>
       <listitem>
        <para>
         Build without support for the
         <productname>ICU</productname><indexterm><primary>ICU</primary></indexterm>
         library, disabling the use of ICU collation features (see <xref
         linkend="collation"/>).
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-without-readline">
       <term><option>--without-readline</option></term>
       <listitem>
        <para>
         Prevents use of the <application>Readline</application> library
         (and <application>libedit</application> as well).  This option disables
         command-line editing and history in
         <application>psql</application>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-with-libedit-preferred">
       <term><option>--with-libedit-preferred</option></term>
       <listitem>
        <para>
         Favors the use of the BSD-licensed <application>libedit</application> library
         rather than GPL-licensed <application>Readline</application>.  This option
         is significant only if you have both libraries installed; the
         default in that case is to use <application>Readline</application>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-without-zlib">
       <term><option>--without-zlib</option></term>
       <listitem>
        <para>
         <indexterm>
          <primary>zlib</primary>
         </indexterm>
         Prevents use of the <application>Zlib</application> library.
         This disables
         support for compressed archives in <application>pg_dump</application>
         and <application>pg_restore</application>.
        </para>
       </listitem>
      </varlistentry>

     </variablelist>

   </sect3>

   <sect3 id="configure-options-build-process">
    <title>Build Process Details</title>

     <variablelist>

      <varlistentry id="configure-option-with-includes">
       <term><option>--with-includes=<replaceable>DIRECTORIES</replaceable></option></term>
       <listitem>
        <para>
         <replaceable>DIRECTORIES</replaceable> is a colon-separated list of
         directories that will be added to the list the compiler
         searches for header files. If you have optional packages
         (such as GNU <application>Readline</application>) installed in a non-standard
         location,
         you have to use this option and probably also the corresponding
         <option>--with-libraries</option> option.
        </para>
        <para>
         Example: <literal>--with-includes=/opt/gnu/include:/usr/sup/include</literal>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-with-libraries">
       <term><option>--with-libraries=<replaceable>DIRECTORIES</replaceable></option></term>
       <listitem>
        <para>
         <replaceable>DIRECTORIES</replaceable> is a colon-separated list of
         directories to search for libraries. You will probably have
         to use this option (and the corresponding
         <option>--with-includes</option> option) if you have packages
         installed in non-standard locations.
        </para>
        <para>
         Example: <literal>--with-libraries=/opt/gnu/lib:/usr/sup/lib</literal>.
        </para>