<!-- $Header -->

<refentry id="app-pg_config">
 <refmeta>
  <refentrytitle id="app-pg_config-title">pg_config</>
  <refmiscinfo>Application</>
 </refmeta>

 <refnamediv>
  <refname>pg_config</>
  <refpurpose>Provides information about the installed version of <productname>PostgreSQL</></>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
pg_config --bindir | --includedir | --libdir | --configure | --version
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</>
  <para>
   The <application>pg_config</> stores and provides configuration parameters
   of the currently installed version of <productname>PostgreSQL</>. It is
   intended, for example, to be used by software packages that want to interface
   to <productname>PostgreSQL</> in order to find the respective header files
   and libraries.
  </para>

  <para>
   To use <application>pg_config</>, supply one or more of the following options:
   <variablelist>
    <varlistentry>
     <term>--bindir</>
     <listitem>
      <para>
       Print the location of user executables. Use this, for example, to find
       the <application>psql</> program. This is normally also the location
       where the <filename>pg_config</> program resides.       
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term>--includedir</>
     <listitem>
      <para>
       Print the location of C and C++ header files.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term>--libdir</>
     <listitem>
      <para>
       Print the location of object code libraries.
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term>--configure</>
     <listitem>
      <para>
       Print the options that were given to the <filename>configure</>
       script when <productname>PostgreSQL</> was configured for building.
       This can be used to reproduce the identical configuration, or
       to find out with what options a binary package was built. (Note
       however that binary packages often contain vendor-specific custom
       patches.)
      </para>
     </listitem>
    </varlistentry>

    <varlistentry>
     <term>--version</>
     <listitem>
      <para>
       Print the version of <productname>PostgreSQL</> and exit.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>

   If more than one option (except for <option>--version</>) is given, the
   information is printed in that order, one item per line.
  </para>
 </refsect1>
</refentry>
