zlib/zconf.h

   1 /* zconf.h -- configuration of the zlib compression library
   2  * Copyright (C) 1995-2003 Jean-loup Gailly.
   3  * For conditions of distribution and use, see copyright notice in zlib.h
   4  */
   5
   6 /* @(#) $Id: zconf.h,v 1.1.1.2 2002/03/11 21:53:27 tromey Exp $ */
   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 deflatePrime  z_deflatePrime
  27 #  define deflateParams z_deflateParams
  28 #  define deflateBound  z_deflateBound
  29 #  define inflateInit2_ z_inflateInit2_
  30 #  define inflateSetDictionary z_inflateSetDictionary
  31 #  define inflateSync   z_inflateSync
  32 #  define inflateSyncPoint z_inflateSyncPoint
  33 #  define inflateCopy   z_inflateCopy
  34 #  define inflateReset  z_inflateReset
  35 #  define compress      z_compress
  36 #  define compress2     z_compress2
  37 #  define compressBound z_compressBound
  38 #  define uncompress    z_uncompress
  39 #  define adler32       z_adler32
  40 #  define crc32         z_crc32
  41 #  define get_crc_table z_get_crc_table
  42
  43 #  define Byte          z_Byte
  44 #  define uInt          z_uInt
  45 #  define uLong         z_uLong
  46 #  define Bytef         z_Bytef
  47 #  define charf         z_charf
  48 #  define intf          z_intf
  49 #  define uIntf         z_uIntf
  50 #  define uLongf        z_uLongf
  51 #  define voidpf        z_voidpf
  52 #  define voidp         z_voidp
  53 #endif
  54
  55 #if defined(__MSDOS__) && !defined(MSDOS)
  56 #  define MSDOS
  57 #endif
  58 #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
  59 #  define OS2
  60 #endif
  61 #if defined(_WINDOWS) && !defined(WINDOWS)
  62 #  define WINDOWS
  63 #endif
  64 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
  65 #  define WIN32
  66 #endif
  67 #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
  68 #  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
  69 #    ifndef SYS16BIT
  70 #      define SYS16BIT
  71 #    endif
  72 #  endif
  73 #endif
  74
  75 /*
  76  * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
  77  * than 64k bytes at a time (needed on systems with 16-bit int).
  78  */
  79 #ifdef SYS16BIT
  80 #  define MAXSEG_64K
  81 #endif
  82 #ifdef MSDOS
  83 #  define UNALIGNED_OK
  84 #endif
  85
  86 #ifdef __STDC_VERSION__
  87 #  ifndef STDC
  88 #    define STDC
  89 #  endif
  90 #  if __STDC_VERSION__ >= 199901L
  91 #    ifndef STDC99
  92 #      define STDC99
  93 #    endif
  94 #  endif
  95 #endif
  96 #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
  97 #  define STDC
  98 #endif
  99 #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
 100 #  define STDC
 101 #endif
 102 #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
 103 #  define STDC
 104 #endif
 105 #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
 106 #  define STDC
 107 #endif
 108
 109 #if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
 110 #  define STDC
 111 #endif
 112
 113 #ifndef STDC
 114 #  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
 115 #    define const       /* note: need a more gentle solution here */
 116 #  endif
 117 #endif
 118
 119 /* Some Mac compilers merge all .h files incorrectly: */
 120 #if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
 121 #  define NO_DUMMY_DECL
 122 #endif
 123
 124 /* Maximum value for memLevel in deflateInit2 */
 125 #ifndef MAX_MEM_LEVEL
 126 #  ifdef MAXSEG_64K
 127 #    define MAX_MEM_LEVEL 8
 128 #  else
 129 #    define MAX_MEM_LEVEL 9
 130 #  endif
 131 #endif
 132
 133 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
 134  * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
 135  * created by gzip. (Files created by minigzip can still be extracted by
 136  * gzip.)
 137  */
 138 #ifndef MAX_WBITS
 139 #  define MAX_WBITS   15 /* 32K LZ77 window */
 140 #endif
 141
 142 /* The memory requirements for deflate are (in bytes):
 143             (1 << (windowBits+2)) +  (1 << (memLevel+9))
 144  that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
 145  plus a few kilobytes for small objects. For example, if you want to reduce
 146  the default memory requirements from 256K to 128K, compile with
 147      make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
 148  Of course this will generally degrade compression (there's no free lunch).
 149
 150    The memory requirements for inflate are (in bytes) 1 << windowBits
 151  that is, 32K for windowBits=15 (default value) plus a few kilobytes
 152  for small objects.
 153 */
 154
 155                         /* Type declarations */
 156
 157 #ifndef OF /* function prototypes */
 158 #  ifdef STDC
 159 #    define OF(args)  args
 160 #  else
 161 #    define OF(args)  ()
 162 #  endif
 163 #endif
 164
 165 /* The following definitions for FAR are needed only for MSDOS mixed
 166  * model programming (small or medium model with some far allocations).
 167  * This was tested only with MSC; for other MSDOS compilers you may have
 168  * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
 169  * just define FAR to be empty.
 170  */
 171 #ifdef SYS16BIT
 172 #  if defined(M_I86SM) || defined(M_I86MM)
 173      /* MSC small or medium model */
 174 #    define SMALL_MEDIUM
 175 #    ifdef _MSC_VER
 176 #      define FAR _far
 177 #    else
 178 #      define FAR far
 179 #    endif
 180 #  endif
 181 #  if (defined(__SMALL__) || defined(__MEDIUM__))
 182      /* Turbo C small or medium model */
 183 #    define SMALL_MEDIUM
 184 #    ifdef __BORLANDC__
 185 #      define FAR _far
 186 #    else
 187 #      define FAR far
 188 #    endif
 189 #  endif
 190 #endif
 191
 192 #if defined(WINDOWS) || defined(WIN32)
 193    /* If building or using zlib as a DLL, define ZLIB_DLL.
 194     * This is not mandatory, but it offers a little performance increase.
 195     */
 196 #  ifdef ZLIB_DLL
 197 #    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
 198 #      ifdef ZLIB_INTERNAL
 199 #        define ZEXTERN extern __declspec(dllexport)
 200 #      else
 201 #        define ZEXTERN extern __declspec(dllimport)
 202 #      endif
 203 #    endif
 204 #  endif  /* ZLIB_DLL */
 205    /* If building or using zlib with the WINAPI/WINAPIV calling convention,
 206     * define ZLIB_WINAPI.
 207     * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
 208     */
 209 #  ifdef ZLIB_WINAPI
 210 #    ifdef FAR
 211 #      undef FAR
 212 #    endif
 213 #    include <windows.h>
 214      /* No need for _export, use ZLIB.DEF instead. */
 215      /* For complete Windows compatibility, use WINAPI, not __stdcall. */
 216 #    define ZEXPORT WINAPI
 217 #    ifdef WIN32
 218 #      define ZEXPORTVA WINAPIV
 219 #    else
 220 #      define ZEXPORTVA FAR CDECL
 221 #    endif
 222 #  endif
 223 #endif
 224
 225 #if defined (__BEOS__)
 226 #  ifdef ZLIB_DLL
 227 #    ifdef ZLIB_INTERNAL
 228 #      define ZEXPORT   __declspec(dllexport)
 229 #      define ZEXPORTVA __declspec(dllexport)
 230 #    else
 231 #      define ZEXPORT   __declspec(dllimport)
 232 #      define ZEXPORTVA __declspec(dllimport)
 233 #    endif
 234 #  endif
 235 #endif
 236
 237 #ifndef ZEXTERN
 238 #  define ZEXTERN extern
 239 #endif
 240 #ifndef ZEXPORT
 241 #  define ZEXPORT
 242 #endif
 243 #ifndef ZEXPORTVA
 244 #  define ZEXPORTVA
 245 #endif
 246
 247 #ifndef FAR
 248 #  define FAR
 249 #endif
 250
 251 #if !defined(__MACTYPES__)
 252 typedef unsigned char  Byte;  /* 8 bits */
 253 #endif
 254 typedef unsigned int   uInt;  /* 16 bits or more */
 255 typedef unsigned long  uLong; /* 32 bits or more */
 256
 257 #ifdef SMALL_MEDIUM
 258    /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
 259 #  define Bytef Byte FAR
 260 #else
 261    typedef Byte  FAR Bytef;
 262 #endif
 263 typedef char  FAR charf;
 264 typedef int   FAR intf;
 265 typedef uInt  FAR uIntf;
 266 typedef uLong FAR uLongf;
 267
 268 #ifdef STDC
 269    typedef void const *voidpc;
 270    typedef void FAR   *voidpf;
 271    typedef void       *voidp;
 272 #else
 273    typedef Byte const *voidpc;
 274    typedef Byte FAR   *voidpf;
 275    typedef Byte       *voidp;
 276 #endif
 277
 278 #if 0           /* HAVE_UNISTD_H -- this line is updated by ./configure */
 279 #  include <sys/types.h> /* for off_t */
 280 #  include <unistd.h>    /* for SEEK_* and off_t */
 281 #  ifdef VMS
 282 #    include <unixio.h>   /* for off_t */
 283 #  endif
 284 #  define z_off_t  off_t
 285 #endif
 286 #ifndef SEEK_SET
 287 #  define SEEK_SET        0       /* Seek from beginning of file.  */
 288 #  define SEEK_CUR        1       /* Seek from current position.  */
 289 #  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
 290 #endif
 291 #ifndef z_off_t
 292 #  define  z_off_t long
 293 #endif
 294
 295 #if defined(__OS400__)
 296 #define NO_vsnprintf
 297 #endif
 298
 299 #if defined(__MVS__)
 300 #  define NO_vsnprintf
 301 #  ifdef FAR
 302 #    undef FAR
 303 #  endif
 304 #endif
 305
 306 /* MVS linker does not support external names larger than 8 bytes */
 307 #if defined(__MVS__)
 308 #   pragma map(deflateInit_,"DEIN")
 309 #   pragma map(deflateInit2_,"DEIN2")
 310 #   pragma map(deflateEnd,"DEEND")
 311 #   pragma map(deflateBound,"DEBND")
 312 #   pragma map(inflateInit_,"ININ")
 313 #   pragma map(inflateInit2_,"ININ2")
 314 #   pragma map(inflateEnd,"INEND")
 315 #   pragma map(inflateSync,"INSY")
 316 #   pragma map(inflateSetDictionary,"INSEDI")
 317 #   pragma map(compressBound,"CMBND")
 318 #   pragma map(inflate_table,"INTABL")
 319 #   pragma map(inflate_fast,"INFA")
 320 #   pragma map(inflate_copyright,"INCOPY")
 321 #endif
 322
 323 /* Solaris 2.5.1 doesn't have vsnprintf */
 324 #if defined(__sun) && defined(__svr4__)
 325 #include <sys/feature_tests.h>
 326 #if _XOPEN_VERSION < 3
 327 #define NO_vsnprintf
 328 #endif
 329 #endif
 330
 331 /* Tru64 UNIX V4.0 neither */
 332 #if defined(__alpha) && defined(__osf__)
 333 #include <unistd.h>
 334 #if _XOPEN_VERSION < 500
 335 #define NO_vsnprintf
 336 #endif
 337 #endif
 338
 339 #endif /* ZCONF_H */