php-doc-en/reference/pcre/configure.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<section xml:id="pcre.installation" xmlns="http://docbook.org/ns/docbook">
 &reftitle.install;
 <para>
  Beginning with PHP 4.2.0 these functions are enabled by default. You can
  disable the pcre functions with
  <option role="configure">--without-pcre-regex</option>. Use
  <option role="configure">--with-pcre-regex=DIR</option> to specify DIR
  where PCRE's include and library files are located, if not using bundled library.
  For older versions you have to configure and compile PHP 
  with <option role="configure">--with-pcre-regex[=DIR]</option> in order
  to use these functions.
 </para>
 &windows.builtin;
 <note>
  <para>
   As of PHP 5.3.0 this extension cannot be disabled and is therefore always
   present.
  </para>
  <para>
   It is still possible to build against an external PCRE library by using
   <option role="configure">--with-pcre-regex=DIR</option>
  </para>
 </note>
</section>

<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->