xref: /xnu-10002.41.9/libkern/libkern/zconf.h (revision 699cd48037512bf4380799317ca44ca453c82f57)
1 /*
2  * Copyright (c) 2008 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /* zconf.h -- configuration of the zlib compression library
29  * Copyright (C) 1995-2005 Jean-loup Gailly.
30  * For conditions of distribution and use, see copyright notice in zlib.h
31  */
32 
33 /* @(#) $Id$ */
34 
35 #ifndef ZCONF_H
36 #define ZCONF_H
37 
38 /*
39  * If you *really* need a unique prefix for all types and library functions,
40  * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
41  */
42 #ifdef Z_PREFIX
43 #  define deflateInit_          z_deflateInit_
44 #  define deflate               z_deflate
45 #  define deflateEnd            z_deflateEnd
46 #  define inflateInit_          z_inflateInit_
47 #  define inflate               z_inflate
48 #  define inflateEnd            z_inflateEnd
49 #  define deflateInit2_         z_deflateInit2_
50 #  define deflateSetDictionary  z_deflateSetDictionary
51 #  define deflateCopy           z_deflateCopy
52 #  define deflateReset          z_deflateReset
53 #  define deflateParams         z_deflateParams
54 #  define deflateBound          z_deflateBound
55 #  define deflatePrime          z_deflatePrime
56 #  define inflateInit2_         z_inflateInit2_
57 #  define inflateSetDictionary  z_inflateSetDictionary
58 #  define inflateSync           z_inflateSync
59 #  define inflateSyncPoint      z_inflateSyncPoint
60 #  define inflateCopy           z_inflateCopy
61 #  define inflateReset          z_inflateReset
62 #  define inflateBack           z_inflateBack
63 #  define inflateBackEnd        z_inflateBackEnd
64 #  define compress              z_compress
65 #  define compress2             z_compress2
66 #  define compressBound         z_compressBound
67 #  define uncompress            z_uncompress
68 #  define adler32               z_adler32
69 #  define crc32                 z_crc32
70 #  define get_crc_table         z_get_crc_table
71 #  define zError                z_zError
72 
73 #  define alloc_func            z_alloc_func
74 #  define free_func             z_free_func
75 #  define in_func               z_in_func
76 #  define out_func              z_out_func
77 #  define Byte                  z_Byte
78 #  define uInt                  z_uInt
79 #  define uLong                 z_uLong
80 #  define Bytef                 z_Bytef
81 #  define charf                 z_charf
82 #  define intf                  z_intf
83 #  define uIntf                 z_uIntf
84 #  define uLongf                z_uLongf
85 #  define voidpf                z_voidpf
86 #  define voidp                 z_voidp
87 #endif
88 
89 #if defined(__MSDOS__) && !defined(MSDOS)
90 #  define MSDOS
91 #endif
92 #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
93 #  define OS2
94 #endif
95 #if defined(_WINDOWS) && !defined(WINDOWS)
96 #  define WINDOWS
97 #endif
98 #if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
99 #  ifndef WIN32
100 #    define WIN32
101 #  endif
102 #endif
103 #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
104 #  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
105 #    ifndef SYS16BIT
106 #      define SYS16BIT
107 #    endif
108 #  endif
109 #endif
110 
111 /*
112  * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
113  * than 64k bytes at a time (needed on systems with 16-bit int).
114  */
115 #ifdef SYS16BIT
116 #  define MAXSEG_64K
117 #endif
118 #ifdef MSDOS
119 #  define UNALIGNED_OK
120 #endif
121 
122 #ifdef __STDC_VERSION__
123 #  ifndef STDC
124 #    define STDC
125 #  endif
126 #  if __STDC_VERSION__ >= 199901L
127 #    ifndef STDC99
128 #      define STDC99
129 #    endif
130 #  endif
131 #endif
132 #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
133 #  define STDC
134 #endif
135 #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
136 #  define STDC
137 #endif
138 #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
139 #  define STDC
140 #endif
141 #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
142 #  define STDC
143 #endif
144 
145 #if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
146 #  define STDC
147 #endif
148 
149 #ifndef STDC
150 #  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
151 #    define const       /* note: need a more gentle solution here */
152 #  endif
153 #endif
154 
155 /* Some Mac compilers merge all .h files incorrectly: */
156 #if defined(__MWERKS__) || defined(applec) || defined(THINK_C) || defined(__SC__)
157 #  define NO_DUMMY_DECL
158 #endif
159 
160 /* Maximum value for memLevel in deflateInit2 */
161 #ifndef MAX_MEM_LEVEL
162 #  ifdef MAXSEG_64K
163 #    define MAX_MEM_LEVEL 8
164 #  else
165 #    define MAX_MEM_LEVEL 9
166 #  endif
167 #endif
168 
169 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
170  * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
171  * created by gzip. (Files created by minigzip can still be extracted by
172  * gzip.)
173  */
174 #ifndef MAX_WBITS
175 #  define MAX_WBITS   15 /* 32K LZ77 window */
176 #endif
177 
178 /* The memory requirements for deflate are (in bytes):
179  *           (1 << (windowBits+2)) +  (1 << (memLevel+9))
180  *  that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
181  *  plus a few kilobytes for small objects. For example, if you want to reduce
182  *  the default memory requirements from 256K to 128K, compile with
183  *    make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
184  *  Of course this will generally degrade compression (there's no free lunch).
185  *
186  *  The memory requirements for inflate are (in bytes) 1 << windowBits
187  *  that is, 32K for windowBits=15 (default value) plus a few kilobytes
188  *  for small objects.
189  */
190 
191 /* Type declarations */
192 
193 #ifndef OF /* function prototypes */
194 #  ifdef STDC
195 #    define OF(args)  args
196 #  else
197 #    define OF(args)  ()
198 #  endif
199 #endif
200 
201 /* The following definitions for FAR are needed only for MSDOS mixed
202  * model programming (small or medium model with some far allocations).
203  * This was tested only with MSC; for other MSDOS compilers you may have
204  * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
205  * just define FAR to be empty.
206  */
207 #ifdef SYS16BIT
208 #  if defined(M_I86SM) || defined(M_I86MM)
209 /* MSC small or medium model */
210 #    define SMALL_MEDIUM
211 #    ifdef _MSC_VER
212 #      define FAR _far
213 #    else
214 #      define FAR far
215 #    endif
216 #  endif
217 #  if (defined(__SMALL__) || defined(__MEDIUM__))
218 /* Turbo C small or medium model */
219 #    define SMALL_MEDIUM
220 #    ifdef __BORLANDC__
221 #      define FAR _far
222 #    else
223 #      define FAR far
224 #    endif
225 #  endif
226 #endif
227 
228 #if defined(WINDOWS) || defined(WIN32)
229 /* If building or using zlib as a DLL, define ZLIB_DLL.
230  * This is not mandatory, but it offers a little performance increase.
231  */
232 #  ifdef ZLIB_DLL
233 #    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
234 #      ifdef ZLIB_INTERNAL
235 #        define ZEXTERN extern __declspec(dllexport)
236 #      else
237 #        define ZEXTERN extern __declspec(dllimport)
238 #      endif
239 #    endif
240 #  endif  /* ZLIB_DLL */
241 /* If building or using zlib with the WINAPI/WINAPIV calling convention,
242  * define ZLIB_WINAPI.
243  * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
244  */
245 #  ifdef ZLIB_WINAPI
246 #    ifdef FAR
247 #      undef FAR
248 #    endif
249 #    include <windows.h>
250 /* No need for _export, use ZLIB.DEF instead. */
251 /* For complete Windows compatibility, use WINAPI, not __stdcall. */
252 #    define ZEXPORT WINAPI
253 #    ifdef WIN32
254 #      define ZEXPORTVA WINAPIV
255 #    else
256 #      define ZEXPORTVA FAR CDECL
257 #    endif
258 #  endif
259 #endif
260 
261 #if defined (__BEOS__)
262 #  ifdef ZLIB_DLL
263 #    ifdef ZLIB_INTERNAL
264 #      define ZEXPORT   __declspec(dllexport)
265 #      define ZEXPORTVA __declspec(dllexport)
266 #    else
267 #      define ZEXPORT   __declspec(dllimport)
268 #      define ZEXPORTVA __declspec(dllimport)
269 #    endif
270 #  endif
271 #endif
272 
273 #ifndef ZEXTERN
274 #  define ZEXTERN extern
275 #endif
276 #ifndef ZEXPORT
277 #  define ZEXPORT
278 #endif
279 #ifndef ZEXPORTVA
280 #  define ZEXPORTVA
281 #endif
282 
283 #ifndef FAR
284 #  define FAR
285 #endif
286 
287 #if !defined(__MACTYPES__)
288 typedef unsigned char  Byte;  /* 8 bits */
289 #endif
290 typedef unsigned int   uInt;  /* 16 bits or more */
291 typedef unsigned long  uLong; /* 32 bits or more */
292 
293 #ifdef SMALL_MEDIUM
294 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
295 #  define Bytef Byte FAR
296 #else
297 typedef Byte  FAR Bytef;
298 #endif
299 typedef char  FAR charf;
300 typedef int   FAR intf;
301 typedef uInt  FAR uIntf;
302 typedef uLong FAR uLongf;
303 
304 #ifdef STDC
305 typedef void const *voidpc;
306 typedef void FAR   *voidpf;
307 typedef void       *voidp;
308 #else
309 typedef Byte const *voidpc;
310 typedef Byte FAR   *voidpf;
311 typedef Byte       *voidp;
312 #endif
313 
314 #if 0           /* HAVE_UNISTD_H -- this line is updated by ./configure */
315 #  include <sys/types.h> /* for off_t */
316 #  include <unistd.h>    /* for SEEK_* and off_t */
317 #  ifdef VMS
318 #    include <unixio.h>   /* for off_t */
319 #  endif
320 #  define z_off_t off_t
321 #endif
322 #ifndef SEEK_SET
323 #  define SEEK_SET        0       /* Seek from beginning of file.  */
324 #  define SEEK_CUR        1       /* Seek from current position.  */
325 #  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
326 #endif
327 #ifndef z_off_t
328 #  define z_off_t long
329 #endif
330 
331 #if defined(__OS400__)
332 #  define NO_vsnprintf
333 #endif
334 
335 #if defined(__MVS__)
336 #  define NO_vsnprintf
337 #  ifdef FAR
338 #    undef FAR
339 #  endif
340 #endif
341 
342 /* MVS linker does not support external names larger than 8 bytes */
343 #if defined(__MVS__)
344 #   pragma map(deflateInit_,"DEIN")
345 #   pragma map(deflateInit2_,"DEIN2")
346 #   pragma map(deflateEnd,"DEEND")
347 #   pragma map(deflateBound,"DEBND")
348 #   pragma map(inflateInit_,"ININ")
349 #   pragma map(inflateInit2_,"ININ2")
350 #   pragma map(inflateEnd,"INEND")
351 #   pragma map(inflateSync,"INSY")
352 #   pragma map(inflateSetDictionary,"INSEDI")
353 #   pragma map(compressBound,"CMBND")
354 #   pragma map(inflate_table,"INTABL")
355 #   pragma map(inflate_fast,"INFA")
356 #   pragma map(inflate_copyright,"INCOPY")
357 #endif
358 
359 #endif /* ZCONF_H */
360