63 lines
3.1 KiB
Plaintext
63 lines
3.1 KiB
Plaintext
/*=============================================================================
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Copyright (c) 2001-2003 Joel de Guzman
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http://spirit.sourceforge.net/
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#if !defined(BOOST_SPIRIT_CONFIG_HPP)
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#define BOOST_SPIRIT_CONFIG_HPP
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#include <boost/config.hpp>
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///////////////////////////////////////////////////////////////////////////////
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//
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// Compiler check:
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//
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// Historically, Spirit supported a lot of compilers, including (to some
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// extent) poorly conforming compilers such as VC6. Spirit v1.6.x will be
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// the last release that will support older poorly conforming compilers.
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// Starting from Spirit v1.8.0, ill conforming compilers will not be
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// supported. If you are still using one of these older compilers, you can
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// still use Spirit v1.6.x.
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//
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// The reason why Spirit v1.6.x worked on old non-conforming compilers is
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// that the authors laboriously took the trouble of searching for
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// workarounds to make these compilers happy. The process takes a lot of
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// time and energy, especially when one encounters the dreaded ICE or
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// "Internal Compiler Error". Sometimes searching for a single workaround
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// takes days or even weeks. Sometimes, there are no known workarounds. This
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// stifles progress a lot. And, as the library gets more progressive and
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// takes on more advanced C++ techniques, the difficulty is escalated to
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// even new heights.
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//
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// Spirit v1.6.x will still be supported. Maintenance and bug fixes will
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// still be applied. There will still be active development for the back-
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// porting of new features introduced in Spirit v1.8.0 (and Spirit 1.9.0)
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// to lesser able compilers; hopefully, fueled by contributions from the
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// community. For instance, there is already a working AST tree back-port
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// for VC6 and VC7 by Peder Holt.
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//
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// If you got here somehow, your compiler is known to be poorly conforming
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// WRT ANSI/ISO C++ standard. Library implementers get a bad reputation when
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// someone attempts to compile the code on a non-conforming compiler. She'll
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// be confronted with tons of compiler errors when she tries to compile the
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// library. Such errors will somehow make less informed users conclude that
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// the code is poorly written. It's better for the user to see a message
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// "sorry, this code has not been ported to your compiler yet", than to see
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// pages and pages of compiler error messages.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#if (defined(BOOST_MSVC) && (BOOST_MSVC < 1310)) \
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|| (defined(__BORLANDC__) && (__BORLANDC__ <= 0x570)) \
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|| (defined(__GNUC__) && (__GNUC__ < 3)) \
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|| (defined(__GNUC__) && (__GNUC__ == 3) && (__GNUC_MINOR__ < 1))
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# error "Compiler not supported. See note in <boost/spirit/core/config.hpp>"
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#else
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// Pass... Compiler supported.
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#endif
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#endif
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