distclean</command> before reconfiguring and
   rebuilding.  Without this, your changes in configuration choices
   might not propagate everywhere they need to.
  </para>
  </sect2>

  <sect2 id="configure-options">
   <title><filename>configure</filename> Options</title>

   <indexterm zone="configure-options">
    <primary>configure options</primary>
   </indexterm>

   <para>
    <command>configure</command>'s command line options are explained below.
    This list is not exhaustive (use <literal>./configure --help</literal>
    to get one that is).  The options not covered here are meant for
    advanced use-cases such as cross-compilation, and are documented in
    the standard Autoconf documentation.
   </para>

   <sect3 id="configure-options-locations">
    <title>Installation Locations</title>

     <para>
      These options control where <literal>make install</literal> will put
      the files.  The <option>--prefix</option> option is sufficient for
      most cases.  If you have special needs, you can customize the
      installation subdirectories with the other options described in this
      section.  Beware however that changing the relative locations of the
      different subdirectories may render the installation non-relocatable,
      meaning you won't be able to move it after installation.
      (The <literal>man</literal> and <literal>doc</literal> locations are
      not affected by this restriction.)  For relocatable installs, you
      might want to use the <literal>--disable-rpath</literal> option
      described later.
     </para>

     <variablelist>
      <varlistentry id="configure-option-prefix">
       <term><option>--prefix=<replaceable>PREFIX</replaceable></option></term>
       <listitem>
        <para>
         Install all files under the directory <replaceable>PREFIX</replaceable>
         instead of <filename>/usr/local/pgsql</filename>. The actual
         files will be installed into various subdirectories; no files
         will ever be installed directly into the
         <replaceable>PREFIX</replaceable> directory.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-exec-prefix">
       <term><option>--exec-prefix=<replaceable>EXEC-PREFIX</replaceable></option></term>
       <listitem>
        <para>
         You can install architecture-dependent files under a
         different prefix, <replaceable>EXEC-PREFIX</replaceable>, than what
         <replaceable>PREFIX</replaceable> was set to. This can be useful to
         share architecture-independent files between hosts. If you
         omit this, then <replaceable>EXEC-PREFIX</replaceable> is set equal to
         <replaceable>PREFIX</replaceable> and both architecture-dependent and
         independent files will be installed under the same tree,
         which is probably what you want.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-bindir">
       <term><option>--bindir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         Specifies the directory for executable programs. The default
         is <filename><replaceable>EXEC-PREFIX</replaceable>/bin</filename>, which
         normally means <filename>/usr/local/pgsql/bin</filename>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-sysconfdir">
       <term><option>--sysconfdir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         Sets the directory for various configuration files,
         <filename><replaceable>PREFIX</replaceable>/etc</filename> by default.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="configure-option-libdir">
       <term><option>--libdir=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         Sets the location to install libraries and dynamically loadable