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Mail Archives: djgpp-announce/2013/08/24/19:24:20

Message-Id: <201308242323.r7ONNt0P023682@delorie.com>
Date: Sat, 24 Aug 2013 21:33:28 +0200
From: Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
To: djgpp-announce AT delorie DOT com
Subject: ANNOUNCE: DJGPP port of GNU gzip 1.6 uploaded.
Reply-To: djgpp AT delorie DOT com

This is a port of GNU gzip 1.6 to MSDOS/DJGPP.


   gzip (GNU zip) is a compression utility designed to be a replacement for
   'compress'.  Its main advantages over compress are much better compression
   and freedom from patented algorithms.


   DJGPP specific changes.
   =======================

   No new DJGPP specific functionality has been added.


   This is a recompilation of all new features introduced with previous ports
   and also available in this port:
   - Gzip now fully supports long file names on those platforms where DJGPP
     can access them. This means, for example, that compressing `foo.tar' on
     Windows 9X will produce `foo.tar.gz', not `foo.tgz'.
     For backward compatibility, Gzip knows about butchered DOS-style
     extensions of compressed files even when long file names are supported.
     For example, if you have `foo.tgz' and you type "gunzip foo.tar", Gzip
     will find the file even on Windows 9X. Short variants of compressed
     extensions are checked *after* the long ones, so Gzip will try to find
     `foo.tar.gz' before `foo.tgz'.
     Long file name support is checked for each file submitted to Gzip, so
     it will treat each one of them in accordance with the properties of the
     file system where that file resides. In other words, you can compress
     files that reside on DOS and Windows file systems within a single Gzip
     command.
   - Gzip will no longer appear to hang when its input comes from the console
     device. Previous ports would hang when the user typed "gzip -f [Enter]".
     This port allows you to either interrupt the program with Ctrl-C (if you
     typed that command by mistake), or type in the input and end it with a ^Z
     (if you really mean to compress the text you type from the keyboard).
     This is done by avoiding to switch the console device to binary mode,
     so any console reads are now done in text mode.
   - The default compressed file extension is now `.gz', not `z'. This is so
     that compressed file names on Windows 9X would have the usual `.gz'
     extension, but it also means that `foo.cc' will now be compressed into
     `foo.cgz' when long file names are not supported.  Use the -N option to
     `gunzip' to restore the original name, if the original file name had
     more than one character in the extension.
   - When restoring original file names, `gunzip' now converts all characters
     that are not allowed in DOS/Windows file names to similar but valid
     characters, and changes the file name if it is reserved by a DOS device
     driver (like `aux.text' or `prn.tar') by prepending an underscore to it.
   - In previous ports, uncompressing files with certain names on Windows 9X
     when numeric tails are disabled would trigger false warnings about file
     name truncation. This is now fixed.
   - Truncation of long file names on plain DOS is somewhat smarter now:
     `gunzip' treats several additional characters (like `-' and `_') as
     part delimiters.
   - Shell scripts `zmore', `zgrep' and others now work on DOS and
     Windows, and are distributed with the binary distribution, as are all
     the man pages supplied with the official GNU sources.
   - Shell script `zdiff' does not work on DOS and Windows, because it uses
     subshells to invoke gzip and to generate the error code (return value)
     of the command.  Unfortunately this does not work with the port of bash.


   All the changes done to the original distribution are documented in the
   diffs file and located together with all the files needed to configure
   the package (config.bat, config.sed, config.site, etc.) in the /djgpp
   directory.

   To build this port and run the test suite you will need LFN support.

   The source package is now distributed configured for both DJGPP 2.03 and
   DJGPP 2.04.  In the top srcdir there is be a "_build.203" directory and a
   "_build.204" directory.

   For further information about GNU gzip please read the info docs and NEWS file.



   This is an verbatim extract of the NEWS file:
-------------------------------------------------------------------------------
** New features

   gzip now accepts the --keep (-k) option, for consistency with tools
   like xz, lzip and bzip2.  With this option, gzip no longer removes
   named input files when compressing or decompressing.

** Bug fixes

   gzip -d no longer malfunctions with certain invalid data in 'pack' format.
   [bug introduced in gzip-0.8]

   When overwriting, gzip no longer acts as if you typed "y" when you type "n",
   on some platforms when compiled with optimization.
   [bug introduced in gzip-1.3.6]

   zgrep no longer malfunctions with a multi-digit context option like -15.
   Now, it passes that option to grep (equivalent to -C15) just as it does
   for single-digit options. [bug introduced in gzip-1.3.12]

   zmore now acts more like 'more', and is more portable to POSIXish hosts.


-------------------------------------------------------------------------------


   The port has been compiled using stock djdev203 (patchlevel 2) and consists
   of the usual three packages that can be downloaded from ftp.delorie.com and
   mirrors as (timestamp 2013-08-24):

     gzip 1.6 binaries, info and man format documentation:
     ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gzip16b.zip

     gzip 1.6 dvi, html, pdf and ps format documentation:
     ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gzip16d.zip

     gzip 1.6 source:
     ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/gzip16s.zip


   The binaries have been produced a second time using the stock version of
   djdev204 beta library.  This package is available at ftp.delorie.com and
   mirrors as (timestamp 2013-08-24):

     gzip 1.6 binaries, info and man format documentation:
     ftp://ftp.delorie.com/pub/djgpp/beta/v2gnu/gzip16b.zip



   Send gzip specific bug reports to <bug-gzip AT gnu DOT org>.
   Send suggestions and bug reports concerning the DJGPP port
   to comp.os.msdos.djgpp or <djgpp AT delorie DOT com>.
   If you are not sure if the failure is really a gzip failure
   or a djgpp specific failure, report it here and *not* to
   <bug-gzip AT gnu DOT org>.

Enjoy.

       Guerrero, Juan Manuel <juan DOT guerrero AT gmx DOT de>

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