zconf.h revision f463818dd9146e11105c0572fb119e757eb47768 
1/* zconf.h -- configuration of the zlib compression library
2 * Copyright (C) 1995-2002 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
5
6/* @(#) $Id: zconf.h,v 1.4 2007/06/01 06:56:17 wl Exp $ */
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 and LCC incorrectly complains about missing returns: */
95#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
96#  define NEED_DUMMY_RETURN
97#endif
98
99#if defined(__LCC__)
100#  define  NEED_DUMMY_RETURN
101#endif
102
103/* Maximum value for memLevel in deflateInit2 */
104#ifndef MAX_MEM_LEVEL
105#  ifdef MAXSEG_64K
106#    define MAX_MEM_LEVEL 8
107#  else
108#    define MAX_MEM_LEVEL 9
109#  endif
110#endif
111
112/* Maximum value for windowBits in deflateInit2 and inflateInit2.
113 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
114 * created by gzip. (Files created by minigzip can still be extracted by
115 * gzip.)
116 */
117#ifndef MAX_WBITS
118#  define MAX_WBITS   15 /* 32K LZ77 window */
119#endif
120
121/* The memory requirements for deflate are (in bytes):
122            (1 << (windowBits+2)) +  (1 << (memLevel+9))
123 that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
124 plus a few kilobytes for small objects. For example, if you want to reduce
125 the default memory requirements from 256K to 128K, compile with
126     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
127 Of course this will generally degrade compression (there's no free lunch).
128
129   The memory requirements for inflate are (in bytes) 1 << windowBits
130 that is, 32K for windowBits=15 (default value) plus a few kilobytes
131 for small objects.
132*/
133
134                        /* Type declarations */
135
136#ifndef OF /* function prototypes */
137#  ifdef STDC
138#    define OF(args)  args
139#  else
140#    define OF(args)  ()
141#  endif
142#endif
143
144/* The following definitions for FAR are needed only for MSDOS mixed
145 * model programming (small or medium model with some far allocations).
146 * This was tested only with MSC; for other MSDOS compilers you may have
147 * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
148 * just define FAR to be empty.
149 */
150#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
151   /* MSC small or medium model */
152#  define SMALL_MEDIUM
153#  ifdef _MSC_VER
154#    define FAR _far
155#  else
156#    define FAR far
157#  endif
158#endif
159#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
160#  ifndef __32BIT__
161#    define SMALL_MEDIUM
162#    define FAR _far
163#  endif
164#endif
165
166/* Compile with -DZLIB_DLL for Windows DLL support */
167#if defined(ZLIB_DLL)
168#  if defined(_WINDOWS) || defined(WINDOWS)
169#    ifdef FAR
170#      undef FAR
171#    endif
172#    include <windows.h>
173#    define ZEXPORT(x)  x WINAPI
174#    ifdef WIN32
175#      define ZEXPORTVA(x)  x WINAPIV
176#    else
177#      define ZEXPORTVA(x)  x FAR _cdecl _export
178#    endif
179#  endif
180#  if defined (__BORLANDC__)
181#    if (__BORLANDC__ >= 0x0500) && defined (WIN32)
182#      include <windows.h>
183#      define ZEXPORT(x) x __declspec(dllexport) WINAPI
184#      define ZEXPORTRVA(x)  x __declspec(dllexport) WINAPIV
185#    else
186#      if defined (_Windows) && defined (__DLL__)
187#        define ZEXPORT(x) x _export
188#        define ZEXPORTVA(x) x _export
189#      endif
190#    endif
191#  endif
192#endif
193
194
195#ifndef ZEXPORT
196#  define ZEXPORT(x)   static x
197#endif
198#ifndef ZEXPORTVA
199#  define ZEXPORTVA(x)   static x
200#endif
201#ifndef ZEXTERN
202#  define ZEXTERN(x) static x
203#endif
204#ifndef ZEXTERNDEF
205#  define ZEXTERNDEF(x)  static x
206#endif
207
208#ifndef FAR
209#   define FAR
210#endif
211
212#if !defined(MACOS) && !defined(TARGET_OS_MAC)
213typedef unsigned char  Byte;  /* 8 bits */
214#endif
215typedef unsigned int   uInt;  /* 16 bits or more */
216typedef unsigned long  uLong; /* 32 bits or more */
217
218#ifdef SMALL_MEDIUM
219   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
220#  define Bytef Byte FAR
221#else
222   typedef Byte  FAR Bytef;
223#endif
224typedef char  FAR charf;
225typedef int   FAR intf;
226typedef uInt  FAR uIntf;
227typedef uLong FAR uLongf;
228
229#ifdef STDC
230   typedef void FAR *voidpf;
231   typedef void     *voidp;
232#else
233   typedef Byte FAR *voidpf;
234   typedef Byte     *voidp;
235#endif
236
237#ifdef HAVE_UNISTD_H
238#  include <sys/types.h> /* for off_t */
239#  include <unistd.h>    /* for SEEK_* and off_t */
240#  define z_off_t  off_t
241#endif
242#ifndef SEEK_SET
243#  define SEEK_SET        0       /* Seek from beginning of file.  */
244#  define SEEK_CUR        1       /* Seek from current position.  */
245#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
246#endif
247#ifndef z_off_t
248#  define  z_off_t long
249#endif
250
251/* MVS linker does not support external names larger than 8 bytes */
252#if defined(__MVS__)
253#   pragma map(deflateInit_,"DEIN")
254#   pragma map(deflateInit2_,"DEIN2")
255#   pragma map(deflateEnd,"DEEND")
256#   pragma map(inflateInit_,"ININ")
257#   pragma map(inflateInit2_,"ININ2")
258#   pragma map(inflateEnd,"INEND")
259#   pragma map(inflateSync,"INSY")
260#   pragma map(inflateSetDictionary,"INSEDI")
261#   pragma map(inflate_blocks,"INBL")
262#   pragma map(inflate_blocks_new,"INBLNE")
263#   pragma map(inflate_blocks_free,"INBLFR")
264#   pragma map(inflate_blocks_reset,"INBLRE")
265#   pragma map(inflate_codes_free,"INCOFR")
266#   pragma map(inflate_codes,"INCO")
267#   pragma map(inflate_fast,"INFA")
268#   pragma map(inflate_flush,"INFLU")
269#   pragma map(inflate_mask,"INMA")
270#   pragma map(inflate_set_dictionary,"INSEDI2")
271#   pragma map(inflate_copyright,"INCOPY")
272#   pragma map(inflate_trees_bits,"INTRBI")
273#   pragma map(inflate_trees_dynamic,"INTRDY")
274#   pragma map(inflate_trees_fixed,"INTRFI")
275#   pragma map(inflate_trees_free,"INTRFR")
276#endif
277
278#endif /* _ZCONF_H */
279