Re: Add set_* functions to stat-time?

[Tim Kientzle]

> On Mar 17, 2024, at 2:50 PM, Collin Funk <collin.funk1@gmail.com> wrote:
> 
> On 3/17/24 2:03 PM, Bruno Haible wrote:
>>  * On Linux, it's not even possible to set the birthtime of a file, if
>>    that is meant to mean the ctime (change time).

`ctime` is entirely different from creation or birth time.

> Yes, I beleive it is a BSD thing that MacOS also supports (don't quote
> me on that). Maybe there would be a way to make the warnings less
> noisy by default?

GNU tar could choose to ignore that particular attribute without issuing a 
warning.

> 
> It seems that 'bsdtar' will create archives with this by default
> unless invoked with '--no-xattrs', but I don't have any way of double
> checking at the moment.

bsdtar’s `--no-xattrs` option suppresses filesystem extended attributes 
(“xattrs”).   Creation time is not an xattr.

I would suggest instead `--format ustar` to create maximally-portable archives 
that do not contain any pax extensions.  This works with both bsdtar and GNU 
tar.

Tim