installation.sgml

PostgreSQL7.4.6 for Linux

         to select a non-default value is if you intend to run multiple
         <productname>PostgreSQL</> servers on the same machine.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-perl</option></term>
       <listitem>
        <para>
         Build the PL/Perl server-side language.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-python</option></term>
       <listitem>
        <para>
         Build the PL/Python server-side language.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-tcl</option></term>
       <listitem>
        <para>
         Build components that require Tcl/Tk, which are
         <application>libpgtcl</>, <application>pgtclsh</>,
         <application>pgtksh</application>,
         and <application>PL/Tcl</>.  But see below about
         <option>--without-tk</>.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--without-tk</option></term>
       <listitem>
        <para>
         If you specify <option>--with-tcl</> and this option, then
         the program that requires <productname>Tk</>
         (<application>pgtksh</>) will be
         excluded.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-tclconfig=<replaceable>DIRECTORY</replaceable></option></term>
       <term><option>--with-tkconfig=<replaceable>DIRECTORY</replaceable></option></term>
       <listitem>
        <para>
         Tcl/Tk installs the files <filename>tclConfig.sh</filename> and
         <filename>tkConfig.sh</filename>, which contain
         configuration information needed to build modules
         interfacing to Tcl or Tk. These files are normally found
         automatically at their well-known locations, but if you want to
         use a different version of Tcl or Tk you can specify the
         directory in which to find them.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-java</option></term>
       <listitem>
        <para>
         Build the <acronym>JDBC</acronym> driver and associated Java
         packages.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-krb4<optional>=<replaceable>DIRECTORY</></></option></term>
       <term><option>--with-krb5<optional>=<replaceable>DIRECTORY</></></option></term>
       <listitem>
        <para>
         Build with support for Kerberos authentication. You can use
         either Kerberos version 4 or 5, but not both. The
         <replaceable>DIRECTORY</> argument specifies the root
         directory of the Kerberos installation;
         <filename>/usr/athena</> is assumed as default. If the
         relevant header files and libraries are not under a common
         parent directory, then you must use the
         <option>--with-includes</> and <option>--with-libraries</>
         options in addition to this option. If, on the other hand,
         the required files are in a location that is searched by
         default (e.g., <filename>/usr/lib</>), then you can leave off
         the argument.
        </para>

        <para>
         <filename>configure</> will check for the required header
         files and libraries to make sure that your Kerberos
         installation is sufficient before proceeding.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-krb-srvnam=<replaceable>NAME</></option></term>
       <listitem>
        <para>
         The name of the Kerberos service principal.
         <literal>postgres</literal> is the default. There's probably no
         reason to change this.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <indexterm>
        <primary>OpenSSL</primary>
        <seealso>SSL</seealso>
       </indexterm>

       <term><option>--with-openssl<optional>=<replaceable>DIRECTORY</></></option></term>
       <listitem>
        <para>
         Build with support for <acronym>SSL</> (encrypted) connections. 
         This requires the <productname>OpenSSL</> package to be installed.
         The <replaceable>DIRECTORY</> argument specifies the
         root directory of the <productname>OpenSSL</> installation; the
         default is <filename>/usr/local/ssl</>.
        </para>

        <para>
         <filename>configure</> will check for the required header
         files and libraries to make sure that your <productname>OpenSSL</>
         installation is sufficient before proceeding.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-pam</option></term>
       <listitem>
        <para>
         Build with <acronym>PAM</><indexterm><primary>PAM</></>
         (Pluggable Authentication Modules) support.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--without-readline</option></term>
       <listitem>
        <para>
         Prevents the use of the <application>Readline</> library.  This disables
         command-line editing and history in
         <application>psql</application>, so it is not recommended.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--with-rendezvous</option></term>
       <listitem>
        <para>
         Build with Rendezvous support.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--disable-spinlocks</option></term>
       <listitem>
        <para>
         Allow the builds to succeed even if PostgreSQL has no CPU
         spinlock support for the platform.  The lack of spinlock
         support will result in poor performance; therefore, this
         option should only be used if the build aborts and informs
         you that the platform lacks spinlock support.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--enable-thread-safety</option></term>
       <listitem>
        <para>
         Make the client libraries thread-safe.  This allows
         concurrent threads in <application>libpq</application> and
         <application>ECPG</application> programs to safely control
         their private connection handles.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--without-zlib</option></term>
       <listitem>
        <para>
         Prevents the use of the <application>Zlib</> library.  This disables
         compression support in <application>pg_dump</application>.
         This option is only intended for those rare systems where this
         library is not available.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--enable-debug</option></term>
       <listitem>
        <para>
         Compiles all programs and libraries with debugging symbols.
         This means that you can run the programs through a debugger
         to analyze problems. This enlarges the size of the installed
         executables considerably, and on non-GCC compilers it usually
         also disables compiler optimization, causing slowdowns. However,
         having the symbols available is extremely helpful for dealing
         with any problems that may arise.  Currently, this option is
         recommended for production installations only if you use GCC.
         But you should always have it on if you are doing development work
         or running a beta version.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--enable-cassert</option></term>
       <listitem>
        <para>
         Enables <firstterm>assertion</> checks in the server, which test for
         many <quote>can't happen</> conditions.  This is invaluable for
         code development purposes, but the tests slow things down a little.
         Also, having the tests turned on won't necessarily enhance the
         stability of your server!  The assertion checks are not categorized
         for severity, and so what might be a relatively harmless bug will
         still lead to server restarts if it triggers an assertion
         failure.  Currently, this option is not recommended for
         production use, but you should have it on for development work
         or when running a beta version.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term><option>--enable-depend</option></term>
       <listitem>
        <para>
         Enables automatic dependency tracking.  With this option, the
         makefiles are set up so that all affected object files will
         be rebuilt when any header file is changed.  This is useful
         if you are doing development work, but is just wasted overhead
         if you intend only to compile once and install.  At present,
         this option will work only if you use GCC.
        </para>
       </listitem>
      </varlistentry>

     </variablelist>
    </para>

    <para>
     If you prefer a C compiler different from the one
     <filename>configure</filename> picks then you can set the
     environment variable <envar>CC</> to the program of your choice.
     By default, <filename>configure</filename> will pick
     <filename>gcc</filename> unless this is inappropriate for the
     platform.  Similarly, you can override the default compiler flags
     with the <envar>CFLAGS</envar> variable.
    </para>

    <para>
     You can specify environment variables on the
     <filename>configure</filename> command line, for example:
<screen>
<userinput>./configure CC=/opt/bin/gcc CFLAGS='-O2 -pipe'</>
</screen>
    </para>
   </step>

  <step>
   <title>Build</title>

   <para>
    To start the build, type
<screen>
<userinput>gmake</userinput>
</screen>
    (Remember to use <acronym>GNU</> <application>make</>.) The build
    may take anywhere from 5 minutes to half an hour depending on your
    hardware. The last line displayed should be
<screen>
All of PostgreSQL is successfully made. Ready to install.
</screen>
   </para>
  </step>

  <step>
   <title>Regression Tests</title>

   <indexterm>
    <primary>regression test</primary>
   </indexterm>

   <para>
    If you want to test the newly built server before you install it,
    you can run the regression tests at this point. The regression
    tests are a test suite to verify that <productname>PostgreSQL</>
    runs on your machine in the way the developers expected it
    to. Type
<screen>
<userinput>gmake check</userinput>
</screen>
    (This won't work as root; do it as an unprivileged user.)
    <![%standalone-include[The file
    <filename>src/test/regress/README</> and the
    documentation contain]]>
    <![%standalone-ignore[<xref linkend="regress"> contains]]>
    detailed information about interpreting the test results. You can
    repeat this test at any later time by issuing the same command.
   </para>
  </step>

  <step id="install">
   <title>Installing The Files</title>

   <note>
    <para>
     If you are upgrading an existing system and are going to install
     the new files over the old ones, then you should have backed up
     your data and shut down the old server by now, as explained in
     <xref linkend="install-upgrading"> above.
    </para>
   </note>

   <para>
    To install <productname>PostgreSQL</> enter
<screen>
<userinput>gmake install</userinput>
</screen>
    This will install files into the directories that were specified
    in <xref linkend="configure">. Make sure that you have appropriate
    permissions to write into that area. Normally you need to do this
    step as root. Alternatively, you could create the target
    directories in advance and arrange for appropriate permissions to
    be granted.
   </para>

   <para>
    You can use <literal>gmake install-strip</literal> instead of
    <literal>gmake install</literal> to strip the executable files and
    libraries as they are installed.  This will save some space.  If
    you built with debugging support, stripping will effectively
    remove the debugging support, so it should only be done if
    debugging is no longer needed.  <literal>install-strip</literal>
    tries to do a reasonable job saving space, but it does not have
    perfect knowledge of how to strip every unneeded byte from an
    executable file, so if you want to save all the disk space you
    possibly can, you will have to do manual work.
   </para>

   <para>
    The standard installation provides only the header files needed for client
    application development.  If you plan to do any server-side program
    development (such as custom functions or data types written in C),
    then you may want to install the entire <productname>PostgreSQL</>
    include tree into your target include directory.  To do that, enter
<screen>
<userinput>gmake install-all-headers</userinput>
</screen>
    This adds a megabyte or two to the installation footprint, and is only