src/zlib/zconf.h

   1 /* zconf.h -- configuration of the zlib compression library
   2  * Copyright (C) 1995-1998 Jean-loup Gailly.
   3  * For conditions of distribution and use, see copyright notice in zlib.h
   4  */
   5
   6 /* @(#) $Id$ */
   7
   8 #ifndef _ZCONF_H
   9 #define _ZCONF_H
  10
  11 /*
  12  * If you *really* need a unique prefix for all types and library functions,
  13  * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
  14  */
  15 #ifdef Z_PREFIX
  16 #  define deflateInit_  z_deflateInit_
  17 #  define deflate       z_deflate
  18 #  define deflateEnd    z_deflateEnd
  19 #  define inflateInit_  z_inflateInit_
  20 #  define inflate       z_inflate
  21 #  define inflateEnd    z_inflateEnd
  22 #  define deflateInit2_ z_deflateInit2_
  23 #  define deflateSetDictionary z_deflateSetDictionary
  24 #  define deflateCopy   z_deflateCopy
  25 #  define deflateReset  z_deflateReset
  26 #  define deflateParams z_deflateParams
  27 #  define inflateInit2_ z_inflateInit2_
  28 #  define inflateSetDictionary z_inflateSetDictionary
  29 #  define inflateSync   z_inflateSync
  30 #  define inflateSyncPoint z_inflateSyncPoint
  31 #  define inflateReset  z_inflateReset
  32 #  define compress      z_compress
  33 #  define compress2     z_compress2
  34 #  define uncompress    z_uncompress
  35 #  define adler32       z_adler32
  36 #  define crc32         z_crc32
  37 #  define get_crc_table z_get_crc_table
  38
  39 #  define Byte          z_Byte
  40 #  define uInt          z_uInt
  41 #  define uLong         z_uLong
  42 #  define Bytef         z_Bytef
  43 #  define charf         z_charf
  44 #  define intf          z_intf
  45 #  define uIntf         z_uIntf
  46 #  define uLongf        z_uLongf
  47 #  define voidpf        z_voidpf
  48 #  define voidp         z_voidp
  49 #endif
  50
  51 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
  52 #  define WIN32
  53 #endif
  54 #if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
  55 #  ifndef __32BIT__
  56 #    define __32BIT__
  57 #  endif
  58 #endif
  59 #if defined(__MSDOS__) && !defined(MSDOS)
  60 #  define MSDOS
  61 #endif
  62
  63 /*
  64  * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
  65  * than 64k bytes at a time (needed on systems with 16-bit int).
  66  */
  67 #if defined(MSDOS) && !defined(__32BIT__)
  68 #  define MAXSEG_64K
  69 #endif
  70 #ifdef MSDOS
  71 #  define UNALIGNED_OK
  72 #endif
  73
  74 #if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32))  && !defined(STDC)
  75 #  define STDC
  76 #endif
  77 #if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
  78 #  ifndef STDC
  79 #    define STDC
  80 #  endif
  81 #endif
  82
  83 #ifndef STDC
  84 #  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
  85 #    define const
  86 #  endif
  87 #endif
  88
  89 /* Some Mac compilers merge all .h files incorrectly: */
  90 #if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
  91 #  define NO_DUMMY_DECL
  92 #endif
  93
  94 /* Borland C incorrectly complains about missing returns: */
  95 #if defined(__BORLANDC__)
  96 #  define NEED_DUMMY_RETURN
  97 #endif
  98
  99
 100 /* Maximum value for memLevel in deflateInit2 */
 101 #ifndef MAX_MEM_LEVEL
 102 #  ifdef MAXSEG_64K
 103 #    define MAX_MEM_LEVEL 8
 104 #  else
 105 #    define MAX_MEM_LEVEL 9
 106 #  endif
 107 #endif
 108
 109 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
 110  * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
 111  * created by gzip. (Files created by minigzip can still be extracted by
 112  * gzip.)
 113  */
 114 #ifndef MAX_WBITS
 115 #  define MAX_WBITS   15 /* 32K LZ77 window */
 116 #endif
 117
 118 /* The memory requirements for deflate are (in bytes):
 119             (1 << (windowBits+2)) +  (1 << (memLevel+9))
 120  that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
 121  plus a few kilobytes for small objects. For example, if you want to reduce
 122  the default memory requirements from 256K to 128K, compile with
 123      make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
 124  Of course this will generally degrade compression (there's no free lunch).
 125
 126    The memory requirements for inflate are (in bytes) 1 << windowBits
 127  that is, 32K for windowBits=15 (default value) plus a few kilobytes
 128  for small objects.
 129 */
 130
 131                         /* Type declarations */
 132
 133 #ifndef OF /* function prototypes */
 134 #  ifdef STDC
 135 #    define OF(args)  args
 136 #  else
 137 #    define OF(args)  ()
 138 #  endif
 139 #endif
 140
 141 /* The following definitions for FAR are needed only for MSDOS mixed
 142  * model programming (small or medium model with some far allocations).
 143  * This was tested only with MSC; for other MSDOS compilers you may have
 144  * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
 145  * just define FAR to be empty.
 146  */
 147 #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
 148    /* MSC small or medium model */
 149 #  define SMALL_MEDIUM
 150 #  ifdef _MSC_VER
 151 #    define FAR __far
 152 #  else
 153 #    define FAR far
 154 #  endif
 155 #endif
 156 #if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
 157 #  ifndef __32BIT__
 158 #    define SMALL_MEDIUM
 159 #    define FAR __far
 160 #  endif
 161 #endif
 162
 163 /* Compile with -DZLIB_DLL for Windows DLL support */
 164 #if (defined(_WINDOWS) || defined(WINDOWS)) && defined(ZLIB_DLL)
 165 #  ifdef FAR
 166 #    undef FAR
 167 #  endif
 168 #  include <windows.h>
 169 #  define ZEXPORT  WINAPI
 170 #  ifdef WIN32
 171 #    define ZEXPORTVA  WINAPIV
 172 #  else
 173 #    define ZEXPORTVA  FAR _cdecl _export
 174 #  endif
 175 #else
 176 #   if defined (__BORLANDC__) && defined (_Windows) && defined (__DLL__)
 177 #       define ZEXPORT _export
 178 #       define ZEXPORTVA _export
 179 #   else
 180 #       define ZEXPORT
 181 #       define ZEXPORTVA
 182 #   endif
 183 #endif
 184
 185 #ifndef FAR
 186 #   define FAR
 187 #endif
 188
 189 typedef unsigned char  Byte;  /* 8 bits */
 190 typedef unsigned int   uInt;  /* 16 bits or more */
 191 typedef unsigned long  uLong; /* 32 bits or more */
 192
 193 #if defined(__BORLANDC__) && defined(SMALL_MEDIUM)
 194    /* Borland C/C++ ignores FAR inside typedef */
 195 #  define Bytef Byte FAR
 196 #else
 197    typedef Byte  FAR Bytef;
 198 #endif
 199 typedef char  FAR charf;
 200 typedef int   FAR intf;
 201 typedef uInt  FAR uIntf;
 202 typedef uLong FAR uLongf;
 203
 204 #ifdef STDC
 205    typedef void FAR *voidpf;
 206    typedef void     *voidp;
 207 #else
 208    typedef Byte FAR *voidpf;
 209    typedef Byte     *voidp;
 210 #endif
 211
 212 #ifdef HAVE_UNISTD_H
 213 #  include <sys/types.h> /* for off_t */
 214 #  include <unistd.h>    /* for SEEK_* and off_t */
 215 #  define z_off_t  off_t
 216 #endif
 217 #ifndef SEEK_SET
 218 #  define SEEK_SET        0       /* Seek from beginning of file.  */
 219 #  define SEEK_CUR        1       /* Seek from current position.  */
 220 #endif
 221 #ifndef z_off_t
 222 #  define  z_off_t long
 223 #endif
 224
 225 /* MVS linker does not support external names larger than 8 bytes */
 226 #if defined(__MVS__)
 227 #   pragma map(deflateInit_,"DEIN")
 228 #   pragma map(deflateInit2_,"DEIN2")
 229 #   pragma map(deflateEnd,"DEEND")
 230 #   pragma map(inflateInit_,"ININ")
 231 #   pragma map(inflateInit2_,"ININ2")
 232 #   pragma map(inflateEnd,"INEND")
 233 #   pragma map(inflateSync,"INSY")
 234 #   pragma map(inflateSetDictionary,"INSEDI")
 235 #   pragma map(inflate_blocks,"INBL")
 236 #   pragma map(inflate_blocks_new,"INBLNE")
 237 #   pragma map(inflate_blocks_free,"INBLFR")
 238 #   pragma map(inflate_blocks_reset,"INBLRE")
 239 #   pragma map(inflate_codes_free,"INCOFR")
 240 #   pragma map(inflate_codes,"INCO")
 241 #   pragma map(inflate_fast,"INFA")
 242 #   pragma map(inflate_flush,"INFLU")
 243 #   pragma map(inflate_mask,"INMA")
 244 #   pragma map(inflate_set_dictionary,"INSEDI2")
 245 #   pragma map(inflate_copyright,"INCOPY")
 246 #   pragma map(inflate_trees_bits,"INTRBI")
 247 #   pragma map(inflate_trees_dynamic,"INTRDY")
 248 #   pragma map(inflate_trees_fixed,"INTRFI")
 249 #   pragma map(inflate_trees_free,"INTRFR")
 250 #endif
 251
 252 #endif /* _ZCONF_H */