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Subject: Re: tar 1.33 symlinks : Cannot change mode to...
To: cygwin AT cygwin DOT com
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Date: Mon, 11 Jan 2021 18:50:33 -0500
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From: Ken Brown via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Ken Brown <kbrown AT cornell DOT edu>
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On 1/11/2021 2:57 PM, Morgan King via Cygwin wrote:
> Hello,
> 
> I am experiencing the same issue with tar and I am able to reproduce it following the steps at:
> https://lists.gnu.org/archive/html/bug-tar/2011-08/msg00006.html
> 
> This issue only appears to occur when using 32-bit Cygwin, I am unable to reproduce it using 64-bit Cygwin.

I can confirm this.  Running the tar command under gdb shows a problem at 
gnu/fchmodat.c:94:

94            if (S_ISLNK (st.st_mode))

Here st is a stat structure for directory/1, so S_ISLNK() should be true.  It is 
indeed true on 64-bit Cygwin but not on 32-bit Cygwin.  Someone needs to look 
more closely and find out why this happened.  I'll try to do it tomorrow if no 
one beats me to it.

Ken
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