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