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1 /* zconf.h -- configuration of the zlib compression library
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2 * Copyright (C) 1995-1998 Jean-loup Gailly.
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3 * For conditions of distribution and use, see copyright notice in zlib.h
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4 */
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5
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6 /* @(#) $Id$ */
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7
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8 #ifndef _ZCONF_H
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9 #define _ZCONF_H
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10
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11 /*
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12 * If you *really* need a unique prefix for all types and library functions,
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13 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
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14 */
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15 #ifdef Z_PREFIX
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16 # define deflateInit_ z_deflateInit_
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17 # define deflate z_deflate
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18 # define deflateEnd z_deflateEnd
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19 # define inflateInit_ z_inflateInit_
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20 # define inflate z_inflate
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21 # define inflateEnd z_inflateEnd
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22 # define deflateInit2_ z_deflateInit2_
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23 # define deflateSetDictionary z_deflateSetDictionary
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24 # define deflateCopy z_deflateCopy
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25 # define deflateReset z_deflateReset
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26 # define deflateParams z_deflateParams
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27 # define inflateInit2_ z_inflateInit2_
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28 # define inflateSetDictionary z_inflateSetDictionary
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29 # define inflateSync z_inflateSync
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30 # define inflateSyncPoint z_inflateSyncPoint
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31 # define inflateReset z_inflateReset
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32 # define compress z_compress
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33 # define compress2 z_compress2
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34 # define uncompress z_uncompress
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35 # define adler32 z_adler32
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36 # define crc32 z_crc32
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37 # define get_crc_table z_get_crc_table
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38
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39 # define Byte z_Byte
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40 # define uInt z_uInt
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41 # define uLong z_uLong
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42 # define Bytef z_Bytef
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43 # define charf z_charf
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44 # define intf z_intf
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45 # define uIntf z_uIntf
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46 # define uLongf z_uLongf
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47 # define voidpf z_voidpf
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48 # define voidp z_voidp
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49 #endif
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50
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51 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
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52 # define WIN32
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53 #endif
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54 #if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
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55 # ifndef __32BIT__
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56 # define __32BIT__
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57 # endif
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58 #endif
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59 #if defined(__MSDOS__) && !defined(MSDOS)
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60 # define MSDOS
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61 #endif
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62
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63 /*
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64 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
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65 * than 64k bytes at a time (needed on systems with 16-bit int).
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66 */
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67 #if defined(MSDOS) && !defined(__32BIT__)
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68 # define MAXSEG_64K
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69 #endif
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70 #ifdef MSDOS
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71 # define UNALIGNED_OK
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72 #endif
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73
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74 #if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC)
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75 # define STDC
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76 #endif
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77 #if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
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78 # ifndef STDC
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79 # define STDC
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80 # endif
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81 #endif
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82
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83 #ifndef STDC
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84 # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
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85 # define const
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86 # endif
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87 #endif
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88
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89 /* Some Mac compilers merge all .h files incorrectly: */
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90 #if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
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91 # define NO_DUMMY_DECL
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92 #endif
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93
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94 /* Old Borland C incorrectly complains about missing returns: */
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95 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
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96 # define NEED_DUMMY_RETURN
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97 #endif
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98
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99
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100 /* Maximum value for memLevel in deflateInit2 */
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101 #ifndef MAX_MEM_LEVEL
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102 # ifdef MAXSEG_64K
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103 # define MAX_MEM_LEVEL 8
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104 # else
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105 # define MAX_MEM_LEVEL 9
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106 # endif
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107 #endif
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108
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109 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
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110 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
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111 * created by gzip. (Files created by minigzip can still be extracted by
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112 * gzip.)
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113 */
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114 #ifndef MAX_WBITS
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115 # define MAX_WBITS 15 /* 32K LZ77 window */
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116 #endif
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117
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118 /* The memory requirements for deflate are (in bytes):
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119 (1 << (windowBits+2)) + (1 << (memLevel+9))
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120 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
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121 plus a few kilobytes for small objects. For example, if you want to reduce
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122 the default memory requirements from 256K to 128K, compile with
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123 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
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124 Of course this will generally degrade compression (there's no free lunch).
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125
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126 The memory requirements for inflate are (in bytes) 1 << windowBits
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127 that is, 32K for windowBits=15 (default value) plus a few kilobytes
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128 for small objects.
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129 */
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130
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131 /* Type declarations */
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132
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133 #ifndef OF /* function prototypes */
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134 # ifdef STDC
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135 # define OF(args) args
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136 # else
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137 # define OF(args) ()
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138 # endif
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139 #endif
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140
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141 /* The following definitions for FAR are needed only for MSDOS mixed
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142 * model programming (small or medium model with some far allocations).
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143 * This was tested only with MSC; for other MSDOS compilers you may have
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144 * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
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145 * just define FAR to be empty.
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146 */
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147 #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
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148 /* MSC small or medium model */
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149 # define SMALL_MEDIUM
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150 # ifdef _MSC_VER
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151 # define FAR _far
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152 # else
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153 # define FAR far
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154 # endif
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155 #endif
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156 #if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
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157 # ifndef __32BIT__
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158 # define SMALL_MEDIUM
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159 # define FAR _far
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160 # endif
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161 #endif
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162
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163 /* Compile with -DZLIB_DLL for Windows DLL support */
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164 #if defined(ZLIB_DLL)
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165 # if defined(_WINDOWS) || defined(WINDOWS)
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166 # ifdef FAR
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167 # undef FAR
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168 # endif
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169 # include <windows.h>
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170 # define ZEXPORT WINAPI
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171 # ifdef WIN32
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172 # define ZEXPORTVA WINAPIV
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173 # else
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174 # define ZEXPORTVA FAR _cdecl _export
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175 # endif
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176 # endif
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177 # if defined (__BORLANDC__)
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178 # if (__BORLANDC__ >= 0x0500) && defined (WIN32)
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179 # include <windows.h>
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180 # define ZEXPORT __declspec(dllexport) WINAPI
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181 # define ZEXPORTRVA __declspec(dllexport) WINAPIV
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182 # else
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183 # if defined (_Windows) && defined (__DLL__)
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184 # define ZEXPORT _export
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185 # define ZEXPORTVA _export
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186 # endif
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187 # endif
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188 # endif
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189 #endif
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190
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191 #if defined (__BEOS__)
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192 # if defined (ZLIB_DLL)
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193 # define ZEXTERN extern __declspec(dllexport)
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194 # else
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195 # define ZEXTERN extern __declspec(dllimport)
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196 # endif
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197 #endif
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198
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199 #ifndef ZEXPORT
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200 # define ZEXPORT
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201 #endif
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202 #ifndef ZEXPORTVA
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203 # define ZEXPORTVA
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204 #endif
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205 #ifndef ZEXTERN
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206 # define ZEXTERN extern
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207 #endif
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208
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209 #ifndef FAR
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210 # define FAR
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211 #endif
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212
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213 #if !defined(MACOS) && !defined(TARGET_OS_MAC)
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214 typedef unsigned char Byte; /* 8 bits */
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215 #endif
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216 typedef unsigned int uInt; /* 16 bits or more */
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217 typedef unsigned long uLong; /* 32 bits or more */
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218
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219 #ifdef SMALL_MEDIUM
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220 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
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221 # define Bytef Byte FAR
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222 #else
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223 typedef Byte FAR Bytef;
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224 #endif
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225 typedef char FAR charf;
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226 typedef int FAR intf;
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227 typedef uInt FAR uIntf;
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228 typedef uLong FAR uLongf;
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229
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230 #ifdef STDC
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231 typedef void FAR *voidpf;
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232 typedef void *voidp;
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233 #else
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234 typedef Byte FAR *voidpf;
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235 typedef Byte *voidp;
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236 #endif
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237
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238 #ifdef HAVE_UNISTD_H
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239 # include <sys/types.h> /* for off_t */
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240 # include <unistd.h> /* for SEEK_* and off_t */
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241 # define z_off_t off_t
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242 #endif
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243 #ifndef SEEK_SET
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244 # define SEEK_SET 0 /* Seek from beginning of file. */
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245 # define SEEK_CUR 1 /* Seek from current position. */
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246 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
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247 #endif
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248 #ifndef z_off_t
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249 # define z_off_t long
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250 #endif
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251
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252 /* MVS linker does not support external names larger than 8 bytes */
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253 #if defined(__MVS__)
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254 # pragma map(deflateInit_,"DEIN")
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255 # pragma map(deflateInit2_,"DEIN2")
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256 # pragma map(deflateEnd,"DEEND")
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257 # pragma map(inflateInit_,"ININ")
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258 # pragma map(inflateInit2_,"ININ2")
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259 # pragma map(inflateEnd,"INEND")
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260 # pragma map(inflateSync,"INSY")
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261 # pragma map(inflateSetDictionary,"INSEDI")
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262 # pragma map(inflate_blocks,"INBL")
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263 # pragma map(inflate_blocks_new,"INBLNE")
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264 # pragma map(inflate_blocks_free,"INBLFR")
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265 # pragma map(inflate_blocks_reset,"INBLRE")
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266 # pragma map(inflate_codes_free,"INCOFR")
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267 # pragma map(inflate_codes,"INCO")
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268 # pragma map(inflate_fast,"INFA")
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269 # pragma map(inflate_flush,"INFLU")
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270 # pragma map(inflate_mask,"INMA")
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271 # pragma map(inflate_set_dictionary,"INSEDI2")
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272 # pragma map(inflate_copyright,"INCOPY")
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273 # pragma map(inflate_trees_bits,"INTRBI")
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274 # pragma map(inflate_trees_dynamic,"INTRDY")
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275 # pragma map(inflate_trees_fixed,"INTRFI")
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276 # pragma map(inflate_trees_free,"INTRFR")
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277 #endif
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278
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279 #endif /* _ZCONF_H */
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