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zconf.h
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1 /* zconf.h -- configuration of the zlib compression library
2  * Copyright (C) 1995-2005 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 deflateBound z_deflateBound
28 # define deflatePrime z_deflatePrime
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 inflateBack z_inflateBack
36 # define inflateBackEnd z_inflateBackEnd
37 # define compress z_compress
38 # define compress2 z_compress2
39 # define compressBound z_compressBound
40 # define uncompress z_uncompress
41 # define adler32 z_adler32
42 # define crc32 z_crc32
43 # define get_crc_table z_get_crc_table
44 # define zError z_zError
45 
46 # define alloc_func z_alloc_func
47 # define free_func z_free_func
48 # define in_func z_in_func
49 # define out_func z_out_func
50 # define Byte z_Byte
51 # define uInt z_uInt
52 # define uLong z_uLong
53 # define Bytef z_Bytef
54 # define charf z_charf
55 # define intf z_intf
56 # define uIntf z_uIntf
57 # define uLongf z_uLongf
58 # define voidpf z_voidpf
59 # define voidp z_voidp
60 #endif
61 
62 #if defined(__MSDOS__) && !defined(MSDOS)
63 # define MSDOS
64 #endif
65 #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
66 # define OS2
67 #endif
68 #if defined(_WINDOWS) && !defined(WINDOWS)
69 # define WINDOWS
70 #endif
71 #if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
72 # ifndef WIN32
73 # define WIN32
74 # endif
75 #endif
76 #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
77 # if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
78 # ifndef SYS16BIT
79 # define SYS16BIT
80 # endif
81 # endif
82 #endif
83 
84 /*
85  * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
86  * than 64k bytes at a time (needed on systems with 16-bit int).
87  */
88 #ifdef SYS16BIT
89 # define MAXSEG_64K
90 #endif
91 #ifdef MSDOS
92 # define UNALIGNED_OK
93 #endif
94 
95 #ifdef __STDC_VERSION__
96 # ifndef STDC
97 # define STDC
98 # endif
99 # if __STDC_VERSION__ >= 199901L
100 # ifndef STDC99
101 # define STDC99
102 # endif
103 # endif
104 #endif
105 #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
106 # define STDC
107 #endif
108 #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
109 # define STDC
110 #endif
111 #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
112 # define STDC
113 #endif
114 #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
115 # define STDC
116 #endif
117 
118 #if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */
119 # define STDC
120 #endif
121 
122 #ifndef STDC
123 # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
124 # define const /* note: need a more gentle solution here */
125 # endif
126 #endif
127 
128 /* Some Mac compilers merge all .h files incorrectly: */
129 #if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
130 # define NO_DUMMY_DECL
131 #endif
132 
133 /* Maximum value for memLevel in deflateInit2 */
134 #ifndef MAX_MEM_LEVEL
135 # ifdef MAXSEG_64K
136 # define MAX_MEM_LEVEL 8
137 # else
138 # define MAX_MEM_LEVEL 9
139 # endif
140 #endif
141 
142 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
143  * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
144  * created by gzip. (Files created by minigzip can still be extracted by
145  * gzip.)
146  */
147 #ifndef MAX_WBITS
148 # define MAX_WBITS 15 /* 32K LZ77 window */
149 #endif
150 
151 /* The memory requirements for deflate are (in bytes):
152  (1 << (windowBits+2)) + (1 << (memLevel+9))
153  that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
154  plus a few kilobytes for small objects. For example, if you want to reduce
155  the default memory requirements from 256K to 128K, compile with
156  make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
157  Of course this will generally degrade compression (there's no free lunch).
158 
159  The memory requirements for inflate are (in bytes) 1 << windowBits
160  that is, 32K for windowBits=15 (default value) plus a few kilobytes
161  for small objects.
162 */
163 
164  /* Type declarations */
165 
166 #ifndef OF /* function prototypes */
167 # ifdef STDC
168 # define OF(args) args
169 # else
170 # define OF(args) ()
171 # endif
172 #endif
173 
174 /* The following definitions for FAR are needed only for MSDOS mixed
175  * model programming (small or medium model with some far allocations).
176  * This was tested only with MSC; for other MSDOS compilers you may have
177  * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
178  * just define FAR to be empty.
179  */
180 #ifdef SYS16BIT
181 # if defined(M_I86SM) || defined(M_I86MM)
182  /* MSC small or medium model */
183 # define SMALL_MEDIUM
184 # ifdef _MSC_VER
185 # define FAR _far
186 # else
187 # define FAR far
188 # endif
189 # endif
190 # if (defined(__SMALL__) || defined(__MEDIUM__))
191  /* Turbo C small or medium model */
192 # define SMALL_MEDIUM
193 # ifdef __BORLANDC__
194 # define FAR _far
195 # else
196 # define FAR far
197 # endif
198 # endif
199 #endif
200 
201 #if defined(WINDOWS) || defined(WIN32)
202  /* If building or using zlib as a DLL, define ZLIB_DLL.
203  * This is not mandatory, but it offers a little performance increase.
204  */
205 # ifdef ZLIB_DLL
206 # if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
207 # ifdef ZLIB_INTERNAL
208 # define ZEXTERN extern __declspec(dllexport)
209 # else
210 # define ZEXTERN extern __declspec(dllimport)
211 # endif
212 # endif
213 # endif /* ZLIB_DLL */
214  /* If building or using zlib with the WINAPI/WINAPIV calling convention,
215  * define ZLIB_WINAPI.
216  * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
217  */
218 # ifdef ZLIB_WINAPI
219 # ifdef FAR
220 # undef FAR
221 # endif
222 # include <windows.h>
223  /* No need for _export, use ZLIB.DEF instead. */
224  /* For complete Windows compatibility, use WINAPI, not __stdcall. */
225 # define ZEXPORT WINAPI
226 # ifdef WIN32
227 # define ZEXPORTVA WINAPIV
228 # else
229 # define ZEXPORTVA FAR CDECL
230 # endif
231 # endif
232 #endif
233 
234 #if defined (__BEOS__)
235 # ifdef ZLIB_DLL
236 # ifdef ZLIB_INTERNAL
237 # define ZEXPORT __declspec(dllexport)
238 # define ZEXPORTVA __declspec(dllexport)
239 # else
240 # define ZEXPORT __declspec(dllimport)
241 # define ZEXPORTVA __declspec(dllimport)
242 # endif
243 # endif
244 #endif
245 
246 #ifndef ZEXTERN
247 # define ZEXTERN extern
248 #endif
249 #ifndef ZEXPORT
250 # define ZEXPORT
251 #endif
252 #ifndef ZEXPORTVA
253 # define ZEXPORTVA
254 #endif
255 
256 #ifndef FAR
257 # define FAR
258 #endif
259 
260 #if !defined(__MACTYPES__)
261 typedef unsigned char Byte; /* 8 bits */
262 #endif
263 typedef unsigned int uInt; /* 16 bits or more */
264 typedef unsigned long uLong; /* 32 bits or more */
265 
266 #ifdef SMALL_MEDIUM
267  /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
268 # define Bytef Byte FAR
269 #else
270  typedef Byte FAR Bytef;
271 #endif
272 typedef char FAR charf;
273 typedef int FAR intf;
274 typedef uInt FAR uIntf;
275 typedef uLong FAR uLongf;
276 
277 #ifdef STDC
278  typedef void const *voidpc;
279  typedef void FAR *voidpf;
280  typedef void *voidp;
281 #else
282  typedef Byte const *voidpc;
283  typedef Byte FAR *voidpf;
284  typedef Byte *voidp;
285 #endif
286 
287 #if defined(HAVE_UNISTD_H)
288 # include <sys/types.h> /* for off_t */
289 # include <unistd.h> /* for SEEK_* and off_t */
290 # ifdef VMS
291 # include <unixio.h> /* for off_t */
292 # endif
293 # define z_off_t off_t
294 #endif
295 #ifndef SEEK_SET
296 # define SEEK_SET 0 /* Seek from beginning of file. */
297 # define SEEK_CUR 1 /* Seek from current position. */
298 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
299 #endif
300 #ifndef z_off_t
301 # define z_off_t long
302 #endif
303 
304 #if defined(__OS400__)
305 # define NO_vsnprintf
306 #endif
307 
308 #if defined(__MVS__)
309 # define NO_vsnprintf
310 # ifdef FAR
311 # undef FAR
312 # endif
313 #endif
314 
315 /* MVS linker does not support external names larger than 8 bytes */
316 #if defined(__MVS__)
317 # pragma map(deflateInit_,"DEIN")
318 # pragma map(deflateInit2_,"DEIN2")
319 # pragma map(deflateEnd,"DEEND")
320 # pragma map(deflateBound,"DEBND")
321 # pragma map(inflateInit_,"ININ")
322 # pragma map(inflateInit2_,"ININ2")
323 # pragma map(inflateEnd,"INEND")
324 # pragma map(inflateSync,"INSY")
325 # pragma map(inflateSetDictionary,"INSEDI")
326 # pragma map(compressBound,"CMBND")
327 # pragma map(inflate_table,"INTABL")
328 # pragma map(inflate_fast,"INFA")
329 # pragma map(inflate_copyright,"INCOPY")
330 #endif
331 
332 #endif /* ZCONF_H */