zconf.h revision 145490 
1/* zconf.h -- configuration of the zlib compression library
2 * Copyright (C) 1995-2004 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
5
6/* @(#) $FreeBSD: head/lib/libz/zconf.h 145490 2005-04-24 22:04:34Z kientzle $ */
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 Byte                  z_Byte
47#  define uInt                  z_uInt
48#  define uLong                 z_uLong
49#  define Bytef                 z_Bytef
50#  define charf                 z_charf
51#  define intf                  z_intf
52#  define uIntf                 z_uIntf
53#  define uLongf                z_uLongf
54#  define voidpf                z_voidpf
55#  define voidp                 z_voidp
56#endif
57
58#if defined(__MSDOS__) && !defined(MSDOS)
59#  define MSDOS
60#endif
61#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
62#  define OS2
63#endif
64#if defined(_WINDOWS) && !defined(WINDOWS)
65#  define WINDOWS
66#endif
67#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
68#  define WIN32
69#endif
70#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
71#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
72#    ifndef SYS16BIT
73#      define SYS16BIT
74#    endif
75#  endif
76#endif
77
78/*
79 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
80 * than 64k bytes at a time (needed on systems with 16-bit int).
81 */
82#ifdef SYS16BIT
83#  define MAXSEG_64K
84#endif
85#ifdef MSDOS
86#  define UNALIGNED_OK
87#endif
88
89#ifdef __STDC_VERSION__
90#  ifndef STDC
91#    define STDC
92#  endif
93#  if __STDC_VERSION__ >= 199901L
94#    ifndef STDC99
95#      define STDC99
96#    endif
97#  endif
98#endif
99#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
100#  define STDC
101#endif
102#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
103#  define STDC
104#endif
105#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
106#  define STDC
107#endif
108#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
109#  define STDC
110#endif
111
112#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
113#  define STDC
114#endif
115
116#ifndef STDC
117#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
118#    define const       /* note: need a more gentle solution here */
119#  endif
120#endif
121
122/* Some Mac compilers merge all .h files incorrectly: */
123#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
124#  define NO_DUMMY_DECL
125#endif
126
127/* Maximum value for memLevel in deflateInit2 */
128#ifndef MAX_MEM_LEVEL
129#  ifdef MAXSEG_64K
130#    define MAX_MEM_LEVEL 8
131#  else
132#    define MAX_MEM_LEVEL 9
133#  endif
134#endif
135
136/* Maximum value for windowBits in deflateInit2 and inflateInit2.
137 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
138 * created by gzip. (Files created by minigzip can still be extracted by
139 * gzip.)
140 */
141#ifndef MAX_WBITS
142#  define MAX_WBITS   15 /* 32K LZ77 window */
143#endif
144
145/* The memory requirements for deflate are (in bytes):
146            (1 << (windowBits+2)) +  (1 << (memLevel+9))
147 that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
148 plus a few kilobytes for small objects. For example, if you want to reduce
149 the default memory requirements from 256K to 128K, compile with
150     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
151 Of course this will generally degrade compression (there's no free lunch).
152
153   The memory requirements for inflate are (in bytes) 1 << windowBits
154 that is, 32K for windowBits=15 (default value) plus a few kilobytes
155 for small objects.
156*/
157
158                        /* Type declarations */
159
160#ifndef OF /* function prototypes */
161#  ifdef STDC
162#    define OF(args)  args
163#  else
164#    define OF(args)  ()
165#  endif
166#endif
167
168/* The following definitions for FAR are needed only for MSDOS mixed
169 * model programming (small or medium model with some far allocations).
170 * This was tested only with MSC; for other MSDOS compilers you may have
171 * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
172 * just define FAR to be empty.
173 */
174#ifdef SYS16BIT
175#  if defined(M_I86SM) || defined(M_I86MM)
176     /* MSC small or medium model */
177#    define SMALL_MEDIUM
178#    ifdef _MSC_VER
179#      define FAR _far
180#    else
181#      define FAR far
182#    endif
183#  endif
184#  if (defined(__SMALL__) || defined(__MEDIUM__))
185     /* Turbo C small or medium model */
186#    define SMALL_MEDIUM
187#    ifdef __BORLANDC__
188#      define FAR _far
189#    else
190#      define FAR far
191#    endif
192#  endif
193#endif
194
195#if defined(WINDOWS) || defined(WIN32)
196   /* If building or using zlib as a DLL, define ZLIB_DLL.
197    * This is not mandatory, but it offers a little performance increase.
198    */
199#  ifdef ZLIB_DLL
200#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
201#      ifdef ZLIB_INTERNAL
202#        define ZEXTERN extern __declspec(dllexport)
203#      else
204#        define ZEXTERN extern __declspec(dllimport)
205#      endif
206#    endif
207#  endif  /* ZLIB_DLL */
208   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
209    * define ZLIB_WINAPI.
210    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
211    */
212#  ifdef ZLIB_WINAPI
213#    ifdef FAR
214#      undef FAR
215#    endif
216#    include <windows.h>
217     /* No need for _export, use ZLIB.DEF instead. */
218     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
219#    define ZEXPORT WINAPI
220#    ifdef WIN32
221#      define ZEXPORTVA WINAPIV
222#    else
223#      define ZEXPORTVA FAR CDECL
224#    endif
225#  endif
226#endif
227
228#if defined (__BEOS__)
229#  ifdef ZLIB_DLL
230#    ifdef ZLIB_INTERNAL
231#      define ZEXPORT   __declspec(dllexport)
232#      define ZEXPORTVA __declspec(dllexport)
233#    else
234#      define ZEXPORT   __declspec(dllimport)
235#      define ZEXPORTVA __declspec(dllimport)
236#    endif
237#  endif
238#endif
239
240#ifndef ZEXTERN
241#  define ZEXTERN extern
242#endif
243#ifndef ZEXPORT
244#  define ZEXPORT
245#endif
246#ifndef ZEXPORTVA
247#  define ZEXPORTVA
248#endif
249
250#ifndef FAR
251#  define FAR
252#endif
253
254#if !defined(__MACTYPES__)
255typedef unsigned char  Byte;  /* 8 bits */
256#endif
257typedef unsigned int   uInt;  /* 16 bits or more */
258typedef unsigned long  uLong; /* 32 bits or more */
259
260#ifdef SMALL_MEDIUM
261   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
262#  define Bytef Byte FAR
263#else
264   typedef Byte  FAR Bytef;
265#endif
266typedef char  FAR charf;
267typedef int   FAR intf;
268typedef uInt  FAR uIntf;
269typedef uLong FAR uLongf;
270
271#ifdef STDC
272   typedef void const *voidpc;
273   typedef void FAR   *voidpf;
274   typedef void       *voidp;
275#else
276   typedef Byte const *voidpc;
277   typedef Byte FAR   *voidpf;
278   typedef Byte       *voidp;
279#endif
280
281#if 0           /* HAVE_UNISTD_H -- this line is updated by ./configure */
282#  include <sys/types.h> /* for off_t */
283#  include <unistd.h>    /* for SEEK_* and off_t */
284#  ifdef VMS
285#    include <unixio.h>   /* for off_t */
286#  endif
287#  define z_off_t off_t
288#endif
289#ifndef SEEK_SET
290#  define SEEK_SET        0       /* Seek from beginning of file.  */
291#  define SEEK_CUR        1       /* Seek from current position.  */
292#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
293#endif
294
295/*
296 * This is hard-configured for FreeBSD, since zlib doesn't actually support
297 * using the system off_t for offsets unless off_t is no longer than long.
298 * To minimize the diff, we just "undef z_off_t" rather than modifying
299 * the following lines.
300 */
301#undef z_off_t
302
303#ifndef z_off_t
304#  define z_off_t long
305#endif
306
307#if defined(__OS400__)
308#  define NO_vsnprintf
309#endif
310
311#if defined(__MVS__)
312#  define NO_vsnprintf
313#  ifdef FAR
314#    undef FAR
315#  endif
316#endif
317
318/* MVS linker does not support external names larger than 8 bytes */
319#if defined(__MVS__)
320#   pragma map(deflateInit_,"DEIN")
321#   pragma map(deflateInit2_,"DEIN2")
322#   pragma map(deflateEnd,"DEEND")
323#   pragma map(deflateBound,"DEBND")
324#   pragma map(inflateInit_,"ININ")
325#   pragma map(inflateInit2_,"ININ2")
326#   pragma map(inflateEnd,"INEND")
327#   pragma map(inflateSync,"INSY")
328#   pragma map(inflateSetDictionary,"INSEDI")
329#   pragma map(compressBound,"CMBND")
330#   pragma map(inflate_table,"INTABL")
331#   pragma map(inflate_fast,"INFA")
332#   pragma map(inflate_copyright,"INCOPY")
333#endif
334
335#endif /* ZCONF_H */
336