1 ------------------------------------------------------------------ 2 This file is part of bzip2/libbzip2, a program and library for 3 lossless, block-sorting data compression. 4 5 bzip2/libbzip2 version 1.0.6 of 6 September 2010 6 Copyright (C) 1996-2010 Julian Seward <jseward (a] bzip.org> 7 8 Please read the WARNING, DISCLAIMER and PATENTS sections in the 9 README file. 10 11 This program is released under the terms of the license contained 12 in the file LICENSE. 13 ------------------------------------------------------------------ 14 15 bzip2-1.0.6 should compile without problems on the vast majority of 16 platforms. Using the supplied Makefile, I've built and tested it 17 myself for x86-linux and amd64-linux. With makefile.msc, Visual C++ 18 6.0 and nmake, you can build a native Win32 version too. Large file 19 support seems to work correctly on at least on amd64-linux. 20 21 When I say "large file" I mean a file of size 2,147,483,648 (2^31) 22 bytes or above. Many older OSs can't handle files above this size, 23 but many newer ones can. Large files are pretty huge -- most files 24 you'll encounter are not Large Files. 25 26 Early versions of bzip2 (0.1, 0.9.0, 0.9.5) compiled on a wide variety 27 of platforms without difficulty, and I hope this version will continue 28 in that tradition. However, in order to support large files, I've had 29 to include the define -D_FILE_OFFSET_BITS=64 in the Makefile. This 30 can cause problems. 31 32 The technique of adding -D_FILE_OFFSET_BITS=64 to get large file 33 support is, as far as I know, the Recommended Way to get correct large 34 file support. For more details, see the Large File Support 35 Specification, published by the Large File Summit, at 36 37 http://ftp.sas.com/standards/large.file 38 39 As a general comment, if you get compilation errors which you think 40 are related to large file support, try removing the above define from 41 the Makefile, ie, delete the line 42 43 BIGFILES=-D_FILE_OFFSET_BITS=64 44 45 from the Makefile, and do 'make clean ; make'. This will give you a 46 version of bzip2 without large file support, which, for most 47 applications, is probably not a problem. 48 49 Alternatively, try some of the platform-specific hints listed below. 50 51 You can use the spewG.c program to generate huge files to test bzip2's 52 large file support, if you are feeling paranoid. Be aware though that 53 any compilation problems which affect bzip2 will also affect spewG.c, 54 alas. 55 56 AIX: I have reports that for large file support, you need to specify 57 -D_LARGE_FILES rather than -D_FILE_OFFSET_BITS=64. I have not tested 58 this myself. 59
