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/* 
 * Copyright (c) 1991, 1993 
 *	The Regents of the University of California.  All rights reserved. 
 * 
 * By using this file, you agree to the terms and conditions set 
 * forth in the LICENSE file which can be found at the top level of 
 * the sendmail distribution. 
 * 
 *	$Id: cdefs.h,v 1.1 2000/10/29 06:35:12 roesch Exp $ 
 *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95 
 */ 
 
#ifndef _CDEFS_H_ 
# define	_CDEFS_H_ 
 
# if defined(__cplusplus) 
#  define	__BEGIN_DECLS	extern "C" { 
#  define	__END_DECLS	}; 
# else /* defined(__cplusplus) */ 
#  define	__BEGIN_DECLS 
#  define	__END_DECLS 
# endif /* defined(__cplusplus) */ 
 
/* 
 * The __CONCAT macro is used to concatenate parts of symbol names, e.g. 
 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. 
 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces 
 * in between its arguments.  __CONCAT can also concatenate double-quoted 
 * strings produced by the __STRING macro, but this only works with ANSI C. 
 */ 
# if defined(__STDC__) || defined(__cplusplus) 
#  define	__P(protos)	protos		/* full-blown ANSI C */ 
#  ifndef __CONCAT 
#   define	__CONCAT(x,y)	x ## y 
#  endif /* ! __CONCAT */ 
#  define	__STRING(x)	#x 
 
#  ifndef __const 
#   define	__const		const		/* define reserved names to standard */ 
#  endif /* ! __const */ 
#  define	__signed	signed 
#  define	__volatile	volatile 
#  if defined(__cplusplus) 
#   define	__inline	inline		/* convert to C++ keyword */ 
#  else /* defined(__cplusplus) */ 
#   ifndef __GNUC__ 
#    define	__inline			/* delete GCC keyword */ 
#   endif /* ! __GNUC__ */ 
#  endif /* defined(__cplusplus) */ 
 
# else /* defined(__STDC__) || defined(__cplusplus) */ 
#  define	__P(protos)	()		/* traditional C preprocessor */ 
#  ifndef __CONCAT 
#   define	__CONCAT(x,y)	x/**/y 
#  endif /* ! __CONCAT */ 
#  define	__STRING(x)	"x" 
 
#  ifndef __GNUC__ 
#   define	__const				/* delete pseudo-ANSI C keywords */ 
#   define	__inline 
#   define	__signed 
#   define	__volatile 
/* 
 * In non-ANSI C environments, new programs will want ANSI-only C keywords 
 * deleted from the program and old programs will want them left alone. 
 * When using a compiler other than gcc, programs using the ANSI C keywords 
 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. 
 * When using "gcc -traditional", we assume that this is the intent; if 
 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. 
 */ 
#   ifndef NO_ANSI_KEYWORDS 
#    define	const				/* delete ANSI C keywords */ 
#    define	inline 
#    define	signed 
#    define	volatile 
#   endif /* ! NO_ANSI_KEYWORDS */ 
#  endif /* ! __GNUC__ */ 
# endif /* defined(__STDC__) || defined(__cplusplus) */ 
 
/* 
 * GCC1 and some versions of GCC2 declare dead (non-returning) and 
 * pure (no side effects) functions using "volatile" and "const"; 
 * unfortunately, these then cause warnings under "-ansi -pedantic". 
 * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of 
 * these work for GNU C++ (modulo a slight glitch in the C++ grammar 
 * in the distribution version of 2.5.5). 
 */ 
# if !defined(__GNUC__) || __GNUC__ < 2 || \ 
	(__GNUC__ == 2 && __GNUC_MINOR__ < 5) 
#  define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */ 
#  if defined(__GNUC__) && !defined(__STRICT_ANSI__) 
#   define	__dead		__volatile 
#   define	__pure		__const 
#  endif /* defined(__GNUC__) && !defined(__STRICT_ANSI__) */ 
# endif /* !defined(__GNUC__) || __GNUC__ < 2 || \ */ 
 
/* Delete pseudo-keywords wherever they are not available or needed. */ 
# ifndef __dead 
#  define	__dead 
#  define	__pure 
# endif /* ! __dead */ 
 
#endif /* ! _CDEFS_H_ */