This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

This package provides a complete GCC tool chain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binaries, plus debugging symbols in the debug output), and Binutils. GCC is the GNU Compiler Collection.

libtar is a C library for manipulating POSIX tar files. It handles adding and extracting files to/from a tar archive.

Tarlz is a massively parallel (multi-threaded) combined implementation of the tar archiver and the lzip compressor. Tarlz creates, lists, and extracts archives in a simplified and safer variant of the POSIX pax format compressed with lzip, keeping the alignment between tar members and lzip members. The resulting multimember tar.lz archive is fully backward compatible with standard tar tools like GNU tar, which treat it like any other tar.lz archive. Tarlz can append files to the end of such compressed archives.

SfArk extractor converts SoundFonts in the compressed legacy sfArk file format to the uncompressed sf2 format.

minizip-ng is a zip manipulation library written in C, forked from the zip manipulation library found in the zlib distribution.

This package provides the reference implementation of Brotli, a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

The specification of the Brotli Compressed Data Format is defined in RFC 7932.

Lzip is a lossless data compressor with a user interface similar to the one of gzip or bzip2. Lzip decompresses almost as fast as gzip and compresses more than bzip2, which makes it well-suited for software distribution and data archiving. Lzip is a clean implementation of the LZMA algorithm.

Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger.

Libdeflate is a library for fast, whole-buffer DEFLATE-based compression and decompression. The supported formats are:

1. DEFLATE (raw)

2. zlib (a.k.a. DEFLATE with a zlib wrapper)

3. gzip (a.k.a. DEFLATE with a gzip wrapper)

LZFSE is a Lempel-Ziv style data compression algorithm using Finite State Entropy coding. It targets similar compression rates at higher compression and decompression speed compared to Deflate using Zlib.

7-zip is a command-line file compressor that supports a number of archive formats and features self-extracting archives.

ZPAQ is a command-line archiver for realistic situations with many duplicate and already compressed files. It backs up only those files modified since the last update. All previous versions remain untouched and can be independently recovered. Identical files are only stored once (known as de-duplication). Archives can also be encrypted.

ZPAQ is intended to back up user data, not entire operating systems. It ignores owner and group IDs, ACLs, extended attributes, or special file types like devices, sockets, or named pipes. It does not follow or restore symbolic links or junctions, and always follows hard links.

Miniz is a lossless data compression library that implements the zlib (RFC 1950) and Deflate (RFC 1951) compressed data format specification standards. It supports the most commonly used functions exported by the zlib library.

lrzip is a compression utility that uses long-range redundancy reduction to improve the subsequent compression ratio of larger files. It can then further compress the result with the ZPAQ or LZMA algorithms for maximum compression, or LZO for maximum speed. This choice between size or speed allows for either better compression than even LZMA can provide, or a higher speed than gzip while compressing as well as bzip2.

Clzip is a compressor and decompressor for files in the lzip compression format (.lz), written as a single small C tool with no dependencies. This makes it well-suited to embedded and other systems without a C++ compiler, or for use in other applications like package managers. Clzip is intended to be fully compatible with the regular lzip package.

Zutils is a collection of utilities able to process any combination of compressed and uncompressed files transparently. If any given file, including standard input, is compressed, its decompressed content is used instead.

zcat, zcmp, zdiff, and zgrep are improved replacements for the shell scripts provided by GNU gzip. ztest tests the integrity of supported compressed files. zupdate recompresses files with lzip, similar to gzip's znew.

Supported compression formats are bzip2, gzip, lzip, and xz. Zutils uses external compressors: the compressor to be used for each format is configurable at run time, and must be installed separately.

ECM is a utility that converts ECM files, i.e., CD data files with their error correction data losslessly rearranged for better compression, to their original, binary CD format.

(N)compress provides the original compress and uncompress programs that used to be the de facto UNIX standard for compressing and uncompressing files. These programs implement a fast, simple Lempel-Ziv (LZW) file compression algorithm.

Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression. ZopfliCompress supports the deflate, gzip and zlib output formats. This library can only compress, not decompress; existing zlib or deflate libraries can decompress the data.

Lzop is a file compressor which is very similar to gzip. Lzop uses the LZO data compression library for compression services, and its main advantages over gzip are much higher compression and decompression speed (at the cost of some compression ratio).

Plzip is a massively parallel (multi-threaded) lossless data compressor and decompressor that uses the lzip file format (.lz). Files produced by plzip are fully compatible with lzip and can be rescued with lziprecover. On multiprocessor machines, plzip can compress and decompress large files much faster than lzip, at the cost of a slightly reduced compression ratio (0.4% to 2%). The number of usable threads is limited by file size: on files of only a few MiB, plzip is no faster than lzip. Files that were compressed with regular lzip will also not be decompressed faster by plzip, unless the -b option was used: lzip usually produces single-member files which can't be decompressed in parallel.

Squashfs is a highly compressed read-only file system for Linux. It compresses files, inodes, and directories with one of several compressors. All blocks are packed to minimize the data overhead, and block sizes of between 4K and 1M are supported. It is intended to be used for archival use, for live media, and for embedded systems where low overhead is needed.

The squashfs-tools-ng package offers alternative tooling to create and extract such file systems. It is not based on the older squashfs-tools package and its tools have different names:

1. gensquashfs produces SquashFS images from a directory or gen_init_cpio-like file listings and can generate SELinux labels.

2. rdsquashfs inspects and unpacks SquashFS images.

3. sqfs2tar and tar2sqfs convert between SquashFS and tarballs.

4. sqfsdiff compares the contents of two SquashFS images.

These commands are largely command-line wrappers around the included libsquashfs library that intends to make SquashFS available to other applications as an embeddable, extensible archive format.

Both the library and tools operate deterministically: same input will produce byte-for-byte identical output.