1 /* zconf.h -- configuration of the zlib compression library
2 * Copyright (C) 1995-1998 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
6 /* @(#) $Id: zconf.h,v 1.1.1.1 2005/04/11 02:51:05 jack Exp $ */
11 #if defined(__GNUC__) || defined(__386__) || defined(i386)
17 #if defined(__STDC__) || defined(__cplusplus)
23 /* The memory requirements for deflate are (in bytes):
24 (1 << (windowBits+2)) + (1 << (memLevel+9))
25 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
26 plus a few kilobytes for small objects. For example, if you want to reduce
27 the default memory requirements from 256K to 128K, compile with
28 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
29 Of course this will generally degrade compression (there's no free lunch).
31 The memory requirements for inflate are (in bytes) 1 << windowBits
32 that is, 32K for windowBits=15 (default value) plus a few kilobytes
36 /* Maximum value for memLevel in deflateInit2 */
38 # define MAX_MEM_LEVEL 9
41 /* Maximum value for windowBits in deflateInit2 and inflateInit2.
42 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
43 * created by gzip. (Files created by minigzip can still be extracted by
47 # define MAX_WBITS 15 /* 32K LZ77 window */
50 /* Type declarations */
52 #ifndef OF /* function prototypes */
54 # define OF(args) args
67 # define ZEXTERN extern
73 typedef unsigned char Byte; /* 8 bits */
74 typedef unsigned int uInt; /* 16 bits or more */
75 typedef unsigned long uLong; /* 32 bits or more */
77 typedef Byte FAR Bytef;
78 typedef char FAR charf;
80 typedef uInt FAR uIntf;
81 typedef uLong FAR uLongf;
83 typedef void FAR *voidpf;
86 #include <linux/types.h> /* for off_t */
87 #include <linux/unistd.h> /* for SEEK_* and off_t */