c++config revision 117397
197403Sobrien// Predefined symbols and macros -*- C++ -*- 297403Sobrien 3117397Skan// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 4117397Skan// Free Software Foundation, Inc. 597403Sobrien// 697403Sobrien// This file is part of the GNU ISO C++ Library. This library is free 797403Sobrien// software; you can redistribute it and/or modify it under the 897403Sobrien// terms of the GNU General Public License as published by the 997403Sobrien// Free Software Foundation; either version 2, or (at your option) 1097403Sobrien// any later version. 1197403Sobrien 1297403Sobrien// This library is distributed in the hope that it will be useful, 1397403Sobrien// but WITHOUT ANY WARRANTY; without even the implied warranty of 1497403Sobrien// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1597403Sobrien// GNU General Public License for more details. 1697403Sobrien 1797403Sobrien// You should have received a copy of the GNU General Public License along 1897403Sobrien// with this library; see the file COPYING. If not, write to the Free 1997403Sobrien// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 2097403Sobrien// USA. 2197403Sobrien 2297403Sobrien// As a special exception, you may use this file as part of a free software 2397403Sobrien// library without restriction. Specifically, if other files instantiate 2497403Sobrien// templates or use macros or inline functions from this file, or you compile 2597403Sobrien// this file and link it with other files to produce an executable, this 2697403Sobrien// file does not by itself cause the resulting executable to be covered by 2797403Sobrien// the GNU General Public License. This exception does not however 2897403Sobrien// invalidate any other reasons why the executable file might be covered by 2997403Sobrien// the GNU General Public License. 3097403Sobrien 3197403Sobrien#ifndef _CPP_CPPCONFIG 3297403Sobrien#define _CPP_CPPCONFIG 1 3397403Sobrien 3497403Sobrien// Pick up any OS-specific definitions. 3597403Sobrien#include <bits/os_defines.h> 3697403Sobrien 3797403Sobrien// The current version of the C++ library in compressed ISO date format. 38117397Skan#define __GLIBCPP__ 20030711 3997403Sobrien 40117397Skan// This is necessary until GCC supports separate template compilation. 4197403Sobrien#define _GLIBCPP_NO_TEMPLATE_EXPORT 1 4297403Sobrien 4397403Sobrien// This is a hack around not having either pre-compiled headers or 4497403Sobrien// export compilation. If defined, the io, string, and valarray 4597403Sobrien// headers will include all the necessary bits. If not defined, the 4697403Sobrien// implementation optimizes the headers for the most commonly-used 4797403Sobrien// types. For the io library, this means that larger, out-of-line 4897403Sobrien// member functions are only declared, and definitions are not parsed 4997403Sobrien// by the compiler, but instead instantiated into the library binary. 5097403Sobrien#define _GLIBCPP_FULLY_COMPLIANT_HEADERS 1 5197403Sobrien 52117397Skan// Allow use of the GNU syntax extension, "extern template." This 53117397Skan// extension is fully documented in the g++ manual, but in a nutshell, 54117397Skan// it inhibits all implicit instantiations and is used throughout the 55117397Skan// library to avoid multiple weak definitions for required types that 56117397Skan// are already explicitly instantiated in the library binary. This 57117397Skan// substantially reduces the binary size of resulting executables. 58117397Skan#ifndef _GLIBCPP_EXTERN_TEMPLATE 59117397Skan#define _GLIBCPP_EXTERN_TEMPLATE 1 60117397Skan#endif 61117397Skan 6297403Sobrien// To enable older, ARM-style iostreams and other anachronisms use this. 6397403Sobrien//#define _GLIBCPP_DEPRECATED 1 6497403Sobrien 6597403Sobrien// Use corrected code from the committee library group's issues list. 6697403Sobrien#define _GLIBCPP_RESOLVE_LIB_DEFECTS 1 6797403Sobrien 68107606Sobrien// Hopefully temporary workaround to autoconf/m4 issue with quoting '@'. 69107606Sobrien#define _GLIBCPP_AT_AT "@@" 70107606Sobrien 7197403Sobrien// In those parts of the standard C++ library that use a mutex instead 7297403Sobrien// of a spin-lock, we now unconditionally use GCC's gthr.h mutex 7397403Sobrien// abstraction layer. All support to directly map to various 7497403Sobrien// threading models has been removed. Note: gthr.h may well map to 7597403Sobrien// gthr-single.h which is a correct way to express no threads support 7697403Sobrien// in gcc. Support for the undocumented _NOTHREADS has been removed. 7797403Sobrien 7897403Sobrien// Default to the typically high-speed, pool-based allocator (as 7997403Sobrien// libstdc++-v2) instead of the malloc-based allocator (libstdc++-v3 8097403Sobrien// snapshots). See libstdc++-v3/docs/html/17_intro/howto.html for 8197403Sobrien// details on why you don't want to override this setting. Ensure 8297403Sobrien// that threads are properly configured on your platform before 8397403Sobrien// assigning blame to the STL container-memory allocator. After doing 8497403Sobrien// so, please report any possible issues to libstdc++@gcc.gnu.org . 85102782Skan// Do not define __USE_MALLOC on the command line. Enforce it here: 86102782Skan#ifdef __USE_MALLOC 87110614Skan#error __USE_MALLOC should never be defined. Read the release notes. 88102782Skan#endif 8997403Sobrien 90117397Skan// Create a boolean flag to be used to determine if --fast-math is set. 91117397Skan#ifdef __FAST_MATH__ 92117397Skan#define _GLIBCPP_FAST_MATH 1 93117397Skan#else 94117397Skan#define _GLIBCPP_FAST_MATH 0 95117397Skan#endif 96117397Skan 9797403Sobrien// The remainder of the prewritten config is mostly automatic; all the 9897403Sobrien// user hooks are listed above. 9997403Sobrien 10097403Sobrien// End of prewritten config; the discovered settings follow. 101