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From: Bernd Edlinger <bernd.edlinger@hotmail.de>
To: Jeff Law <law@redhat.com>, Eric Gallager <egall@gwmail.gwu.edu>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH, contrib] download_prerequisites: check for existing symlinks before making new ones
Date: Thu, 21 Jul 2016 18:15:00 -0000	[thread overview]
Message-ID: <AM4PR0701MB216261B83CC541C86A89794AE4090@AM4PR0701MB2162.eurprd07.prod.outlook.com> (raw)

Hi,

 > So rather than relying on ln to remove the link, why don't we just
 > explicitly remove it with rm -f?

sounds good, I ran into similar issues already.

ln -nfs does not follow the target if it is a symlink

        -n, --no-dereference
               treat  LINK_NAME  as a normal file if it is a symbolic 
link to a
               directory


but I think a simple rm -f will do as well, and avoid potential
interoperability issues.

However wget has a similar issue, if the $MPFR.tar.gz file is already
there, maybe incomplete, the wget chooses a new name, so I'd suggest
to rm -f that file as well, and the whole $MPFR subtree while you are
already there.


Bernd.

             reply	other threads:[~2016-07-21 18:15 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-21 18:15 Bernd Edlinger [this message]
2016-07-22 22:28 ` Jeff Law
  -- strict thread matches above, loose matches on Subject: below --
2016-06-28  2:38 Eric Gallager
2016-07-13 21:36 ` Jeff Law
2016-07-14 10:57   ` Eric Gallager
2016-07-14 13:54     ` NightStrike
2016-07-14 17:24     ` Jeff Law
2016-07-14 19:57       ` Eric Gallager
2016-07-21 17:10         ` Jeff Law
2016-07-21 19:39           ` Eric Gallager
2016-08-03 16:12             ` Jeff Law
2016-07-14 13:53   ` NightStrike

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