NetBSD/lib/libz/zconf.h

/*	$NetBSD: zconf.h,v 1.4 1997/05/13 22:57:09 gwr Exp $	*/

/* zconf.h -- configuration of the zlib compression library
 * Copyright (C) 1995-1996 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h 
 */

/* from: Id: zconf.h,v 1.20 1996/07/02 15:09:28 me Exp */

#ifndef _ZCONF_H
#define _ZCONF_H

/*
 * Warning:  This file pollutes the user's namespace with:
 * 	Byte Bytef EXPORT FAR OF STDC
 *  charf intf uInt uIntf uLong uLonf
 * Programs using this library appear to expect those...
 */

#include <sys/types.h>

/*
 * If you *really* need a unique prefix for all types and library functions,
 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
 */
#ifdef Z_PREFIX
#  define deflateInit_	z_deflateInit_
#  define deflate	z_deflate
#  define deflateEnd	z_deflateEnd
#  define inflateInit_ 	z_inflateInit_
#  define inflate	z_inflate
#  define inflateEnd	z_inflateEnd
#  define deflateInit2_	z_deflateInit2_
#  define deflateSetDictionary z_deflateSetDictionary
#  define deflateCopy	z_deflateCopy
#  define deflateReset	z_deflateReset
#  define deflateParams	z_deflateParams
#  define inflateInit2_	z_inflateInit2_
#  define inflateSetDictionary z_inflateSetDictionary
#  define inflateSync	z_inflateSync
#  define inflateReset	z_inflateReset
#  define compress	z_compress
#  define uncompress	z_uncompress
#  define adler32	z_adler32
#  define crc32		z_crc32
#  define get_crc_table z_get_crc_table

#  define Byte		z_Byte
#  define uInt		z_uInt
#  define uLong		z_uLong
#  define Bytef	        z_Bytef
#  define charf		z_charf
#  define intf		z_intf
#  define uIntf		z_uIntf
#  define uLongf	z_uLongf
#  define voidpf	z_voidpf
#  define voidp		z_voidp
#endif

#ifndef __32BIT__
/* Don't be alarmed; this just means we have at least 32-bits */
#  define __32BIT__
#endif

/*
 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
 * than 64k bytes at a time (needed on systems with 16-bit int).
 */
#if defined(MSDOS) && !defined(__32BIT__)
#  define MAXSEG_64K
#endif

#if 0
/* XXX: Are there machines where we should define this?  m68k? */
#  define UNALIGNED_OK
#endif

#if (defined(__STDC__) || defined(__cplusplus)) && !defined(STDC)
/* XXX: Look out - this is used in zutil.h and elsewhere... */
#  define STDC
#endif

#ifndef STDC
#  ifndef const
#    define const
#  endif
#endif

/* Some Mac compilers merge all .h files incorrectly: */
#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
#  define NO_DUMMY_DECL
#endif

/* Maximum value for memLevel in deflateInit2 */
#ifndef MAX_MEM_LEVEL
#  ifdef MAXSEG_64K
#    define MAX_MEM_LEVEL 8
#  else
#    define MAX_MEM_LEVEL 9
#  endif
#endif

/* Maximum value for windowBits in deflateInit2 and inflateInit2 */
#ifndef MAX_WBITS
#  define MAX_WBITS   15 /* 32K LZ77 window */
#endif

/* The memory requirements for deflate are (in bytes):
            1 << (windowBits+2)   +  1 << (memLevel+9)
 that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
 plus a few kilobytes for small objects. For example, if you want to reduce
 the default memory requirements from 256K to 128K, compile with
     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
 Of course this will generally degrade compression (there's no free lunch).

   The memory requirements for inflate are (in bytes) 1 << windowBits
 that is, 32K for windowBits=15 (default value) plus a few kilobytes
 for small objects.
*/

/* Warts... */
#define EXPORT
#define FAR
#define OF(args)  __P(args)

/* Type declarations */

typedef unsigned char  Byte;  /* 8 bits */
typedef unsigned int   uInt;  /* 16 bits or more */
typedef unsigned long  uLong; /* 32 bits or more */

typedef Byte  FAR Bytef;
typedef char  FAR charf;
typedef int   FAR intf;
typedef uInt  FAR uIntf;
typedef uLong FAR uLongf;

#ifdef STDC
   typedef void FAR *voidpf;
   typedef void     *voidp;
#else
   typedef Byte FAR *voidpf;
   typedef Byte     *voidp;
#endif


#endif /* _ZCONF_H */