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From:	"Juan Manuel Guerrero" <juan DOT guerrero AT gmx DOT de>
To:	<djgpp-announce AT delorie DOT com>
Subject:	ANNOUNCE: Release 2 of the DJGPP port of GNU Which 2.20 uploaded.
Date:	Tue, 16 Sep 2008 13:43:06 +0200
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This is release 2 of the port of GNU Which 2.20 to MSDOS/DJGPP.

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

 This is a bugfix release.  As has beeen reported by JT Williams some days ago,
 the old port fails on plain DOS.  The reason for this failure is that functions
 like realpath and _fixpath return ENOSYS to the calling function even if the
 canonicalization of the passed path has been successfully performed.  ENOSYS
 is generated by _use_lfn that is called by realpath and/or _fixpath.  If
 _use_lfn detects that the used OS does not provide INT 21 function 0x71A0,
 then errno is set to ENOSYS.  But if function 0x71A0 is available or not has
 no real influence on the canonicalization of the path itself.  The setting
 of errno by _use_lfn inside realpath and _fixpath clobbers errno and confuses
 the calling function.  I have solve the problem by checking that errno != ENOSYS
 before calling the error function and terminating program (which) execution.
 Please note that the difficulty only appeares with OSs that do not implement
 function 0x71A0 (Get Volume Info), you can not reproduce this bug with Win95
 and other Windows.  That is the reason why I have never noticed it before.
 Thanks again to JT Williams for calling my attention to this issue.


 Please note that the distributed source package has been configured for
 djdev203.  If you use WinXP and you want to rebuild the binaries, you will
 have to reconfigure the source package from scratch.  As usual, all the
 djgpp specific files (config.bat, diffs, readme files, etc.) are stored in
 the /djgpp subdir.

 To be able to configure and compile this source package, you will need to
 install libsupport 5.2 or later.  The library will provide a fixed version of
 realpath() and _fixpath() that are required to produce correct canonicalized
 paths.  You can download this package from ftp.delorie.com or mirrors:
     ftp://ftp.delorie.com/pub/djgpp/beta/v2tk/lsupp52a.zip
 Of course, if you are not interested in compiling the sources you do not need
 to download and install lsupp52a.zip at all.

 For futher information about GNU Which please read the info docs and the NEWS
 file.



 Downloading the port.
 =====================

 The port consists of the usual three packages produced using stock djdev203
 that can be downloaded from ftp.delorie.com and mirrors as (timestamp 2008-09-15):

    Which 2.20 binary, info and man format documentation:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/whic220br2.zip

    Which 2.20 dvi, html, pdf and ps format documentation:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/whic220dr2.zip

    Which 2.20 source:
    ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/whic220sr2.zip


 For the convenience of the WinXP users the binaries has been produced a
 second time using the djdev204 beta library.  This package is available
 at ftp.delorie.com and mirrors as (timestamp 2008-09-15):

    Which 2.20 binary, info and man format documentation:
    ftp://ftp.delorie.com/pub/djgpp/beta/v2gnu/whic220br2.zip





 Send which specific bug reports to <which-bug AT gnu DOT org>.
 Send suggestions and bug reports concerning the DJGPP port
 to comp.os.msdos.djgpp or <djgpp AT delorie DOT com>.

Enjoy.

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

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