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/* GNU m4 -- A simple macro processor
Copyright (C) 2000-2001, 2003, 2006-2008, 2010, 2013 Free Software
Foundation, Inc.
This file is part of GNU M4.
GNU M4 is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU M4 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @configure_output@
*
* This file is installed, so cannot rely on the contents of config.h.
* It works best if included _before_ system headers.
**/
#ifndef M4_SYSTEM_H
#define M4_SYSTEM_H 1
#include <gnu/stdlib--.h>
#include <gnu/stdio--.h>
#include <gnu/unistd--.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
@INCLUDE_ERROR_H@
@INCLUDE_OBSTACK_H@
@INCLUDE_REGEX_H@
@INCLUDE_STDBOOL_H@
#include <gnu/xalloc.h>
#include <gnu/xprintf.h>
#include <gnu/xstrndup.h>
/* In addition to EXIT_SUCCESS and EXIT_FAILURE, m4 can fail with version
mismatch when trying to load a frozen file produced by a newer m4 than
the version doing the reload. */
#define EXIT_MISMATCH 63
/* This is okay in an installed file, because it will not change the
behaviour of the including program whether ENABLE_NLS is defined
or not. */
#ifndef _
# ifdef ENABLE_NLS
# include <libintl.h>
# define _(Text) gettext (Text)
# define N_(Text) gettext_noop (Text)
# else
# define _(Text) (Text)
# define N_(Text) (Text)
# endif
#endif
/* All header files should be inside BEGIN_C_DECLS ... END_C_DECLS, so
that the library can be linked into a C++ program. The multi-include
guard macros must be outside, as should any #includes -- for simplicity
everything else should go inside. */
#ifndef BEGIN_C_DECLS
# ifdef __cplusplus
# define BEGIN_C_DECLS extern "C" {
# define END_C_DECLS }
# else /* !__cplusplus */
# define BEGIN_C_DECLS /* empty */
# define END_C_DECLS /* empty */
# endif /* __cplusplus */
#endif /* !BEGIN_C_DECLS */
BEGIN_C_DECLS
/* Canonicalize UNIX recognition macros. */
#if defined unix || defined __unix || defined __unix__ \
|| defined _POSIX_VERSION || defined _POSIX2_VERSION \
|| defined __NetBSD__ || defined __OpenBSD__ \
|| defined __APPLE__ || defined __APPLE_CC__
# define UNIX 1
#endif
/* Canonicalize Windows recognition macros. */
#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
# define W32_NATIVE 1
#endif
/* Canonicalize OS/2 recognition macro. */
#ifdef __EMX__
# define OS2 1
# undef UNIX
#endif
/* M4_STMT_START/END are used to create macros which expand to a
a single compound statement in a portable way, but crucially in
a way sympathetic to the compiler to maximise optimization. */
#undef M4_STMT_START
#undef M4_STMT_END
#if defined __GNUC__ && !defined __STRICT_ANSI__ && !defined __cplusplus
# define M4_STMT_START (void)(
# define M4_STMT_END )
#else
# if defined sun || defined __sun__
# define M4_STMT_START if (1)
# define M4_STMT_END else (void)0
# else
# define M4_STMT_START do
# define M4_STMT_END while (0)
# endif
#endif
/* Take advantage of GNU C compiler source level optimization hints,
using portable macros. */
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 6)
# define M4_GNUC_ATTRIBUTE(args) __attribute__ (args)
#else
# define M4_GNUC_ATTRIBUTE(args)
#endif /* __GNUC__ */
#define M4_GNUC_PRINTF(fmt, arg) \
M4_GNUC_ATTRIBUTE ((__format__ (__printf__, fmt, arg)))
#define M4_GNUC_SCANF(fmt, arg) \
M4_GNUC_ATTRIBUTE ((__format__ (__scanf__, fmt, arg)))
#define M4_GNUC_NORETURN M4_GNUC_ATTRIBUTE ((__noreturn__))
#define M4_GNUC_CONST M4_GNUC_ATTRIBUTE ((__const__))
#define M4_GNUC_UNUSED M4_GNUC_ATTRIBUTE ((__unused__))
#define M4_GNUC_PURE M4_GNUC_ATTRIBUTE ((__pure__))
#if !defined __PRETTY_FUNCTION__
# define __PRETTY_FUNCTION__ "<unknown>"
#endif
/* Preprocessor token manipulation. */
/* The extra indirection to the _STR and _CONC macros is required so that
if the arguments to STR() (or CONC()) are themselves macros, they will
be expanded before being quoted. */
#ifndef STR
# define _STR(arg) #arg
# define STR(arg) _STR (arg)
#endif
#ifndef CONC
# define _CONC(a, b) a##b
# define CONC(a, b) _CONC (a, b)
#endif
END_C_DECLS
#endif /* !M4_SYSTEM_H */
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