Current Version: 1.2.2. See the file ChangeLog for the details of all changes. Major changes from 1.2 to 1.2.1 * Fix a compilation error on Sun with cc (worked with gcc). Major changes from 1.2 to 1.2.1 * Let zmore act as more if the data is not gzipped. * made gzexe more secure (don't rely on PATH). * By default, display output name only when the name was actually truncated. Major changes from 1.1.2 to 1.2 * Added the --list option to display the file characteristics. * Added the --no-name option: do not save or restore original filename Save the original name by default. * Allow gunzip --suffix "" to attempt decompression on any file regardless of its extension if an original name is present. * Add support for the SCO compress -H format. * gzip --fast now compresses faster (speed close to that of compress) with degraded compression ratio (but still better than compress). Default level changed to -6 (acts exactly as previous level -5) to be a better indication of its placement in the speed/ratio range. * Use smart name truncation: 123456789012.c -> 123456789.c.gz instead of 12345678901.gz * With --force, let zcat pass non gzip'ed data unchanged (zcat == cat) * Added the zgrep shell script. * Made sub.c useful for 16 bit sound, 24 bit images, etc.. * Supress warnings about suffix for gunzip -r, except with --verbose. * On MSDOS, use .gz extension when possible (files without extension) * Moved the sample programs to a subdirectory sample. * Added a "Special targets" section in INSTALL. Major changes from 1.1.1 to 1.1.2. * Fix serious bug for VMS (-gz not removed when decompressing). * Allow suffix other than .gz in znew. * Do not display compression ratio when decompressing stdin. * In zmore.in, work around brain damaged stty -g (Ultrix). * Display a correct compression ratio for .Z files. * Added .z to .gz renaming script in INTALL. * Allow setting CFLAGS in configure. Major changes from 1.1 to 1.1.1. * Fix serious bug in vms.c (affects Vax/VMS only). * Added --ascii option. * Add workaround in configure.in for Ultrix (quote eval argument) Major changes from 1.0.7 to 1.1. * Use .gz suffix by default, add --suffix option. * Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS). * Quit when reading garbage from stdin instead of reporting an error. * Added makefile for VAX/MMS and support for wildcards on VMS. * Added support for MSC under OS/2. * Added support for Prime/PRIMOS. * Display compression ratio also when decompressing (with --verbose). * Quit after --version (GNU standard) * Use --force to bypass isatty() check * Continue processing other files in case of recoverable error. * Added comparison of zip and gzip in the readme file. * Added small sample programs (ztouch, sub, add) * Use less memory when compiled with -DSMALL_MEM (for MSDOS). * Remove the "off by more than one minute" time stamp kludge Major changes from 1.0.6 to 1.0.7. * Allow zmore to read from standard input (like more). * Support the 68000 (Atari ST) in match.S. * Retry partial writes (required on Linux when gzip is suspended in a pipe). * Allow full pathnames and renamings in gzexe. * Don't let gzexe compress setuid executables or gzip itself. * Added vms/Makefile.gcc for gcc on the Vax. * Allow installation of binaries and shell scripts in different dirs. * Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more") * Allow installation of zcat as gzcat. * Several small changes for portability to old or weird systems. * Suppress help message and send compressed data to the terminal when gzip is invoked without parameters and without redirection. * Add compile option GNU_STANDARD to respect the GNU coding standards: with -DGNU_STANDARD, behave as gzip even if invoked under the name gunzip. (I don't like the last two changes, which were requested by the FSF.) Major changes from 1.0.5 to 1.0.6. * Let gzexe detect executables that are already gzexe'd. * Keep file attributes in znew and gzexe if cpmod is available. * Don't try restoring record format on VMS (1.0.5 did not work correctly) * Added asm version for 68000 in amiga/match.a. Use asm version for Atari TT and NeXT. * For OS/2, assume HPFS by default, add flag OS2FAT if necessary. * Fixed some bugs in zdiff and define zcmp as a link to zdiff. Major changes from 1.0.4 to 1.0.5. * For VMS, restore the file type for variable record format, otherwise extract in fixed length format (not perfect, but better than forcing all files to be in stream_LF format). * For VMS, use "-z" default suffix and accept a version number in file names. * For Unix, allow compression of files with name ending in 'z'. Use only .z, .*-z, .tgz, .taz as valid gzip extensions. In the last two cases, extract to .tar by default. * On some versions of MSDOS, files with a 3 character extension could not be compressed. * Garbage collect files in /tmp created by gzexe. * Fix the 'OS code' byte in the gzip header. * For the Amiga, add the missing utime.h and add support for gcc. Major changes from 1.0.3 to 1.0.4. * Added optimized asm version for 68020. * Add support for DJGPP. * Add support for the Atari ST. * Added zforce to rename gzip'ed files with truncated names. * Do not install with name uncompress (some systems rely on the absence of any check in the old uncompress). * Added missing function (fcfree) in msdos/tailor.c * Let gunzip handle .tgz files, and let gzip skip them. * Added -d option (decompress) for gzexe and try preserving file permissions. * Suppress all warnings with -q. * Use GZIP_OPT for VMS to avoid conflict with program name. * ... and many other small changes (see ChangeLog) Major changes from 1.0.2 to 1.0.3 * Added -K option for znew to keep old .Z files if smaller * Added -q option (quiet) to cancel -v in GZIP env variable. * Made gzexe safer on systems with filename limitation to 14 chars. * Fixed bugs in handling of GZIP env variable and incorrect free with Turbo C. Major changes from 1.0.1 to 1.0.2 * Added env variable GZIP for default options. Example: for sh: GZIP="-8 -v"; export GZIP for csh: setenv GZIP "-8 -v" * Added support for the Amiga. * znew now keeps the old .Z if it is smaller than the .z file. This can happen for some large and very redundant files. * Do not complain about trailing garbage for record oriented IO (Vax/VMS). This implies however that multi-part gzip files are not supported on such systems. * Added gzexe to compress rarely used executables. * Reduce memory usage (required for MSDOS and useful on all systems). * Preserve time stamp in znew -P (pipe option) if touch -r works. Major changes from 1.0 to 1.0.1 * fix trivial errors in the Borland makefile (msdos/Makefile.bor) Major changes from 0.8.2 to 1.0 * gzip now runs on Vax/VMS * gzip will not not overwrite files without -f when using /bin/sh in background. * Support the test option -t for compressed (.Z) files. Allow some data recovery for bad .Z files. * Added makefiles for MSDOS (Only tested for MSC, not Borland). * still more changes to configure for several systems Major changes from 0.8.1 to 0.8.2: * yet more changes to configure for Linux and other systems * Allow zcat on a file with multiple links. Major changes from 0.8 to 0.8.1: * znew has now a pipe option -P to reduce the disk space requirements, but this option does not preserve timestamps. * Fixed some #if directives for compilation with TurboC. Major changes from 0.7 to 0.8: * gzip can now extract .z files created by 'pack'. * configure should no longer believe that every machine is a 386 * Fix the entry for /etc/magic in INSTALL. * Add patch for GNU tar 1.11.1 and a pointer to crypt++.el * Uncompress files with multiple links only with -f. * Fix for uncompress of .Z files on 16-bit machines * Create a correct output name for file names of exactly N-1 chars when the system has a limit of N chars. Major changes from 0.6 to 0.7: * Use "make check" instead of "make test". * Keep time stamp and pass options to gzip in znew. * Do not create .z.z files with gzip -r. * Allow again gunzip .zip files (was working in 0.5) * Allow again compilation with TurboC 2.0 (was working in 0.4) Major changes form 0.5 to 0.6: * gunzip reported an error when extracting certain .z files. The .z files produced by gzip 0.5 are correct and can be read by gunzip 0.6. * gunzip now supports multiple compressed members within a single .z file. * Fix the check for i386 in configure. * Added "make test" to check for compiler bugs. (gcc -finline-functions is broken at least on the NeXT.) * Use environment variable PAGER in zmore if it is defined. * Accept gzcat in addition to zcat for people having /usr/bin before /usr/local/bin in their path.