id="configure-option-mandir">
       <term><option>--mandir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         The man pages that come with <productname>PostgreSQL</productname> will be installed under
         this directory, in their respective
         <filename>man<replaceable>x</replaceable></filename> subdirectories.
         The default is <filename><replaceable>DATAROOTDIR</replaceable>/man</filename>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-docdir">
       <term><option>--docdir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         Sets the root directory for installing documentation files,
         except <quote>man</quote> pages.  This only sets the default for
         the following options.  The default value for this option is
         <filename><replaceable>DATAROOTDIR</replaceable>/doc/postgresql</filename>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-htmldir">
       <term><option>--htmldir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         The HTML-formatted documentation for
         <productname>PostgreSQL</productname> will be installed under
         this directory.  The default is
         <filename><replaceable>DATAROOTDIR</replaceable></filename>.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>

     <note>
      <para>
       Care has been taken to make it possible to install
       <productname>PostgreSQL</productname> into shared installation locations
       (such as <filename>/usr/local/include</filename>) without
       interfering with the namespace of the rest of the system. First,
       the string <quote><literal>/postgresql</literal></quote> is
       automatically appended to <varname>datadir</varname>,
       <varname>sysconfdir</varname>, and <varname>docdir</varname>,
       unless the fully expanded directory name already contains the
       string <quote><literal>postgres</literal></quote> or
       <quote><literal>pgsql</literal></quote>. For example, if you choose
       <filename>/usr/local</filename> as prefix, the documentation will
       be installed in <filename>/usr/local/doc/postgresql</filename>,
       but if the prefix is <filename>/opt/postgres</filename>, then it
       will be in <filename>/opt/postgres/doc</filename>. The public C
       header files of the client interfaces are installed into
       <varname>includedir</varname> and are namespace-clean. The
       internal header files and the server header files are installed
       into private directories under <varname>includedir</varname>. See
       the documentation of each interface for information about how to
       access its header files. Finally, a private subdirectory will
       also be created, if appropriate, under <varname>libdir</varname>
       for dynamically loadable modules.
      </para>
     </note>

   </sect3>

   <sect3 id="configure-options-features">
    <title><productname>PostgreSQL</productname> Features</title>

    <para>
     The options described in this section enable building of
     various <productname>PostgreSQL</productname> features that are not
     built by default.  Most of these are non-default only because they
     require additional software, as described in
     <xref linkend="install-requirements"/>.
    </para>

     <variablelist>

      <varlistentry id="configure-option-enable-nls">
       <term><option>--enable-nls<optional>=<replaceable>LANGUAGES</replaceable></optional></option></term>
       <listitem>
        <para>
         Enables Native Language Support (<acronym>NLS</acronym>),
         that is, the ability to display a program's messages in a
         language other than English.
         <replaceable>LANGUAGES</replaceable> is an optional space-separated
         list of codes of the