1 /* $OpenBSD: zconf.h,v 1.4 2002/03/12 00:25:57 millert Exp $ */ 2 /* zconf.h -- configuration of the zlib compression library 3 * Copyright (C) 1995-2002 Jean-loup Gailly. 4 * For conditions of distribution and use, see copyright notice in zlib.h 5 */ 6 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 /* Old Borland C incorrectly complains about missing returns: */ 95 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) 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(ZLIB_DLL) 165 # if defined(_WINDOWS) || defined(WINDOWS) 166 # ifdef FAR 167 # undef FAR 168 # endif 169 # include <windows.h> 170 # define ZEXPORT WINAPI 171 # ifdef WIN32 172 # define ZEXPORTVA WINAPIV 173 # else 174 # define ZEXPORTVA FAR _cdecl _export 175 # endif 176 # endif 177 # if defined (__BORLANDC__) 178 # if (__BORLANDC__ >= 0x0500) && defined (WIN32) 179 # include <windows.h> 180 # define ZEXPORT __declspec(dllexport) WINAPI 181 # define ZEXPORTRVA __declspec(dllexport) WINAPIV 182 # else 183 # if defined (_Windows) && defined (__DLL__) 184 # define ZEXPORT _export 185 # define ZEXPORTVA _export 186 # endif 187 # endif 188 # endif 189 #endif 190 191 #if defined (__BEOS__) 192 # if defined (ZLIB_DLL) 193 # define ZEXTERN extern __declspec(dllexport) 194 # else 195 # define ZEXTERN extern __declspec(dllimport) 196 # endif 197 #endif 198 199 #ifndef ZEXPORT 200 # define ZEXPORT 201 #endif 202 #ifndef ZEXPORTVA 203 # define ZEXPORTVA 204 #endif 205 #ifndef ZEXTERN 206 # define ZEXTERN extern 207 #endif 208 209 #ifndef FAR 210 # define FAR 211 #endif 212 213 #if !defined(MACOS) && !defined(TARGET_OS_MAC) 214 typedef unsigned char Byte; /* 8 bits */ 215 #endif 216 typedef unsigned int uInt; /* 16 bits or more */ 217 typedef unsigned long uLong; /* 32 bits or more */ 218 219 #ifdef SMALL_MEDIUM 220 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ 221 # define Bytef Byte FAR 222 #else 223 typedef Byte FAR Bytef; 224 #endif 225 typedef char FAR charf; 226 typedef int FAR intf; 227 typedef uInt FAR uIntf; 228 typedef uLong FAR uLongf; 229 230 #ifdef STDC 231 typedef void FAR *voidpf; 232 typedef void *voidp; 233 #else 234 typedef Byte FAR *voidpf; 235 typedef Byte *voidp; 236 #endif 237 238 #ifdef HAVE_UNISTD_H 239 # include <sys/types.h> /* for off_t */ 240 # include <unistd.h> /* for SEEK_* and off_t */ 241 # define z_off_t off_t 242 #endif 243 #ifndef SEEK_SET 244 # define SEEK_SET 0 /* Seek from beginning of file. */ 245 # define SEEK_CUR 1 /* Seek from current position. */ 246 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ 247 #endif 248 #ifndef z_off_t 249 # define z_off_t long 250 #endif 251 252 /* MVS linker does not support external names larger than 8 bytes */ 253 #if defined(__MVS__) 254 # pragma map(deflateInit_,"DEIN") 255 # pragma map(deflateInit2_,"DEIN2") 256 # pragma map(deflateEnd,"DEEND") 257 # pragma map(inflateInit_,"ININ") 258 # pragma map(inflateInit2_,"ININ2") 259 # pragma map(inflateEnd,"INEND") 260 # pragma map(inflateSync,"INSY") 261 # pragma map(inflateSetDictionary,"INSEDI") 262 # pragma map(inflate_blocks,"INBL") 263 # pragma map(inflate_blocks_new,"INBLNE") 264 # pragma map(inflate_blocks_free,"INBLFR") 265 # pragma map(inflate_blocks_reset,"INBLRE") 266 # pragma map(inflate_codes_free,"INCOFR") 267 # pragma map(inflate_codes,"INCO") 268 # pragma map(inflate_fast,"INFA") 269 # pragma map(inflate_flush,"INFLU") 270 # pragma map(inflate_mask,"INMA") 271 # pragma map(inflate_set_dictionary,"INSEDI2") 272 # pragma map(inflate_copyright,"INCOPY") 273 # pragma map(inflate_trees_bits,"INTRBI") 274 # pragma map(inflate_trees_dynamic,"INTRDY") 275 # pragma map(inflate_trees_fixed,"INTRFI") 276 # pragma map(inflate_trees_free,"INTRFR") 277 #endif 278 279 #endif /* _ZCONF_H */ 280