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.. Macros/Configuration//BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS |10
BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
=====================================
.. _`BOOST_MPL_CFG_NO_PREPROCESSED`:
Synopsis
--------
.. parsed-literal::
// #define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
Description
-----------
``BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS`` is an boolean configuration macro
regulating library's internal use of preprocessed headers. When defined, it
instructs the MPL to discard the pre-generated headers found in
``boost/mpl/aux_/preprocessed`` directory and use `preprocessor
metaprogramming`__ techniques to generate the necessary versions of the
library components on the fly.
In this implementation of the library, the macro is not defined by default.
To change the default configuration, define
``BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS`` before including any library
header.
__ http://boost-consulting.com/tmpbook/preprocessor.html
See also
--------
|Macros|, |Configuration|
.. |preprocessed headers| replace:: `preprocessed headers`_
.. _`preprocessed headers`: `BOOST_MPL_CFG_NO_PREPROCESSED`_
.. copyright:: Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)