105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/* Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#ifndef _SYS_CDEFS_H
|
|
|
|
#define _SYS_CDEFS_H 1
|
|
#include <features.h>
|
|
|
|
/* Some user header file might have defined this before. */
|
|
#undef __P
|
|
|
|
#ifdef __GNUC__
|
|
|
|
#define __P(args) args /* GCC can always grok prototypes. */
|
|
#define __DOTS , ...
|
|
|
|
#else /* Not GCC. */
|
|
|
|
#define __inline /* No inline functions. */
|
|
|
|
#if (defined (__STDC__) && __STDC__) || defined (__cplusplus)
|
|
|
|
#define __P(args) args
|
|
#define __const const
|
|
#define __signed signed
|
|
#define __volatile volatile
|
|
#define __DOTS , ...
|
|
|
|
#else /* Not ANSI C or C++. */
|
|
|
|
#define __P(args) () /* No prototypes. */
|
|
#define __const /* No ANSI C keywords. */
|
|
#define __signed
|
|
#define __volatile
|
|
#define __DOTS
|
|
|
|
#endif /* ANSI C or C++. */
|
|
|
|
#endif /* GCC. */
|
|
|
|
/* For these things, GCC behaves the ANSI way normally,
|
|
and the non-ANSI way under -traditional. */
|
|
|
|
#if defined (__STDC__) && __STDC__
|
|
|
|
#define __CONCAT(x,y) x ## y
|
|
#define __STRING(x) #x
|
|
|
|
/* This is not a typedef so `const __ptr_t' does the right thing. */
|
|
#define __ptr_t void *
|
|
typedef long double __long_double_t;
|
|
|
|
#else
|
|
|
|
#define __CONCAT(x,y) x/**/y
|
|
#define __STRING(x) "x"
|
|
|
|
#define __ptr_t char *
|
|
typedef double __long_double_t;
|
|
|
|
#endif
|
|
|
|
/* The BSD header files use the ANSI keywords unmodified. (This means that
|
|
old programs may lose if they use the new keywords as identifiers.) We
|
|
define them to their __ versions, which are taken care of above. */
|
|
|
|
#ifdef __USE_BSD
|
|
#define const __const
|
|
#define signed __signed
|
|
#define volatile __volatile
|
|
#endif
|
|
|
|
/* C++ needs to know that types and declarations are C, not C++. */
|
|
#ifdef __cplusplus
|
|
#define __BEGIN_DECLS extern "C" {
|
|
#define __END_DECLS }
|
|
#else
|
|
#define __BEGIN_DECLS
|
|
#define __END_DECLS
|
|
#endif
|
|
|
|
/* GCC2 has various useful declarations that can be made with the
|
|
`__attribute__' syntax. All of the ways we use this do fine if
|
|
they are omitted for compilers that don't understand it. */
|
|
#if !defined (__GNUC__) || __GNUC__ < 2
|
|
#define __attribute__(xyz) /* Ignore. */
|
|
#endif
|
|
|
|
#endif /* sys/cdefs.h */
|