source: trunk/src/gcc/zlib/zconf.h@ 2171

/* zconf.h -- configuration of the zlib compression library
 * Copyright (C) 1995-2002 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h 
 */

/* @(#) $Id: zconf.h,v 1.1.1.2 2002/03/11 21:53:27 tromey Exp $ */

#ifndef _ZCONF_H
#define _ZCONF_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 inflateSyncPoint z_inflateSyncPoint
#  define inflateReset  z_inflateReset
#  define compress      z_compress
#  define compress2     z_compress2
#  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

#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
#  define WIN32
#endif
#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
#  ifndef __32BIT__
#    define __32BIT__
#  endif
#endif
#if defined(__MSDOS__) && !defined(MSDOS)
#  define MSDOS
#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
#ifdef MSDOS
#  define UNALIGNED_OK
#endif

#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32))  && !defined(STDC)
#  define STDC
#endif
#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
#  ifndef STDC
#    define STDC
#  endif
#endif

#ifndef STDC
#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
#    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

/* Old Borland C incorrectly complains about missing returns: */
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
#  define NEED_DUMMY_RETURN
#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.
 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
 * created by gzip. (Files created by minigzip can still be extracted by
 * gzip.)
 */
#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.
*/

                        /* Type declarations */

#ifndef OF /* function prototypes */
#  ifdef STDC
#    define OF(args)  args
#  else
#    define OF(args)  ()
#  endif
#endif

/* The following definitions for FAR are needed only for MSDOS mixed
 * model programming (small or medium model with some far allocations).
 * This was tested only with MSC; for other MSDOS compilers you may have
 * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
 * just define FAR to be empty.
 */
#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
   /* MSC small or medium model */