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Message-ID:	<4091054C.2060005@ujf-grenoble.fr>
Date:	Thu, 29 Apr 2004 15:38:20 +0200
From:	Maurice Lombardi <Maurice DOT Lombardi AT ujf-grenoble DOT fr>
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To:	djgpp AT delorie DOT com
Subject:	another bug in symlinks in 2.04 beta 1 (or alpha 2)
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Hi all,

I work since years with djgpp 2.03 under W98se,
mainly for pascal (gpc) programming.
I have made a try of alpha 2 and beta 1 distribs
(to try to recompile gpc under these systems).

I found a bug in a peculiar case of symlink resolution.
This is shown by the following (minimal) dialog,
in a DOS box with setup for djgpp 2.04 beta 1

c:\> mkdir work

c:\> cd work

C:\work> copy con: toto
OK
^Z
         1 fichier(s) copié(s)

C:\work> type toto      <type is a DOS command, unaware of djgpp symlinks>
OK

C:\work>cat toto        <cat is a djgpp command>
OK

C:\work> mkdir test

C:\work> cd test

C:\work\test> ln -s ../toto titi

C:\work\test> type titi
!<symlink>../toto
                  This is just a text to force symlink file to be 510 bytes long.
  Do not delete it nor spaces following it.





C:\work\test> cat titi
OK

C:\work\test> cat c:/work/test/titi
OK

C:\work\test> cat /work/test/titi
OK

C:\work\test> cd ..

C:\work> cat test/titi
OK

C:\work> cat c:/work/test/titi
OK

C:\work> cat /work/test/titi
c:/djgpp/bin/cat.exe: /work/test/titi: No such file or directory (ENOENT)

??? problem arises (AFAICS) only when trying to resolve the symlink with
an absolute path, i.e. starting with a slash (or backslash), but without drive letter,
and issuing the command from a directory other than the one in which is
the symlink.
It is not related to cat. I found it first in a makefile. Make was not able
to find a target file by resolving a symlink. The problem did not appear
beforehand with djgpp 2.03 where "ln -s" was replaced by "cp -p" by configure

Hope this helps

Maurice

-- 
        Maurice Lombardi
Laboratoire de  Spectrometrie Physique,
Universite Joseph Fourier de Grenoble, BP87
38402 Saint Martin d'Heres Cedex     FRANCE
Tel: 33 (0)4 76 51 47 51
Fax: 33 (0)4 76 63 54 95
mailto:Maurice DOT Lombardi AT ujf-grenoble DOT fr

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