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[Lzip-bug] Version 1.1 of clzip released

From: Antonio Diaz Diaz
Subject: [Lzip-bug] Version 1.1 of clzip released
Date: Fri, 14 Jan 2011 18:33:25 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905

I am pleased to announce the release of clzip 1.1.

Clzip is a lossless data compressor based on the LZMA algorithm, with very safe integrity checking and a user interface similar to the one of gzip or bzip2.

Clzip uses the lzip file format; the files produced by clzip are fully compatible with lzip-1.4 or newer. Clzip is in fact a C language version of lzip, intended for embedded devices or systems lacking a C++ compiler.

The homepage is at http://www.nongnu.org/lzip/clzip.html

The sources can be downloaded from

The md5sums are:
5d6dd51e4ef4dff3a092ded660005d1d  clzip-1.1.tar.gz
9a55b5b46efbe6b67c39fffcffd0bfea  clzip-1.1.tar.lz

This release is also GPG signed. You can download the signature by appending ".sig" to the URL.

Changes in version 1.1:

* Code has been converted to "C89 + long long". A C99 compiler is no more needed.

  * A warning about fchown's return value being ignored has been fixed.

  * "clzip -tvvvv" now shows file compression ratio.

* Match length limit set by options -1 to -8 has been reduced to extend range of use towards gzip. Lower numbers now compress less but faster. (-1 now takes 43% less time for only 20% larger compressed size).

* (Note that the bidimensional parameter space of LZMA can't be mapped to a linear scale optimal for all files. If your files are large, very repetitive, etc, you may need to use the --match-length and --dictionary-size options directly to achieve optimal performance).

  * Compression of option -9 has been slightly increased.

* Do not show the message "and `--stdout' was not specified" for file types that can't be read (directories, etc).

  * Some new examples have been added to the manual.

Please send bug reports and suggestions to address@hidden

If you are packaging clzip for a distribution, please, try to use the lzipped source tarball, as this can improve the support for the lzip format in packaging systems[1][2]. Thanks.
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556960
[2] http://bugs.gentoo.org/show_bug.cgi?id=249059

Antonio Diaz, clzip author and maintainer.

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