On Wed, Jul 13, 2016 at 5:36 PM, Jeff Law <l...@redhat.com> wrote:
> On 06/27/2016 08:10 PM, Eric Gallager wrote:
>>
>> The last time I ran ./contrib/download_prerequisites, I already had
>> previous symlinks set up from a previous run of the script, so `ln`
>> followed the existing symlinks and created the new ones in the
>> directories to which the symlinks pointed. This patch should fix that
>> by removing the old symlinks before creating new ones. (For some
>> reason the `-f` flag to `ln` that was already there wasn't enough for
>> me.) Tested by running the script and ensuring that the new isl
>> symlink pointed to the correct directory, and that there were no bad
>> symlinks in the old isl directory. Could someone commit this trivial
>> patch for me, or something like it? I don't have write access.
>
> I'd really rather know why the "-f" flag didn't work for you.  The whole
> point of -f is to remove the destination file first.
>
> Jeff
>

FWIW, it doesn't work for me, either:

$ mkdir d
$ ln -s d a
$ ls -la a
lrwxrwxrwx 1 owner owner 1 Jul 14 09:48 a -> d
$ mkdir e
$ ln -sf e a
$ ls -la a
lrwxrwxrwx 1 owner owner 1 Jul 14 09:48 a -> d

But adding the -n option does:

$ ln -sfn e a
$ ls -la a
lrwxrwxrwx 1 owner owner 1 Jul 14 09:51 a -> e


So perhaps add -n?

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