build modifies config.guess and config.sub

build modifies config.guess and config.sub

[Perry E. Metzger]

Howdy, all!

Whenever I do a "git status" after cleaning up after a build, I learn 
that the files

build-aux/config.guess
build-aux/config.sub

have been modified. It's easy enough to do a "git restore" on them, but 
should they should actually be checked in? I thought they were supplied 
by the autotools?

Perry

Re: build modifies config.guess and config.sub

[Philipp]

> Am 28.07.2021 um 22:17 schrieb Perry E. Metzger <perry@piermont.com>:
> 
> Howdy, all!
> 
> Whenever I do a "git status" after cleaning up after a build, I learn that the files
> 
> build-aux/config.guess
> build-aux/config.sub
> 
> have been modified. It's easy enough to do a "git restore" on them, but should they should actually be checked in? I thought they were supplied by the autotools?

This issue has been discussed earlier (https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg00130.html), but without conclusion.  Maybe it's worth filing a bug to at least track it properly.

Re: build modifies config.guess and config.sub

[Eli Zaretskii]

> From: Philipp <p.stephani2@gmail.com>
> Date: Wed, 28 Jul 2021 22:27:25 +0200
> Cc: Emacs developers <emacs-devel@gnu.org>
> 
> > Am 28.07.2021 um 22:17 schrieb Perry E. Metzger <perry@piermont.com>:
> > 
> > Howdy, all!
> > 
> > Whenever I do a "git status" after cleaning up after a build, I learn that the files
> > 
> > build-aux/config.guess
> > build-aux/config.sub
> > 
> > have been modified. It's easy enough to do a "git restore" on them, but should they should actually be checked in? I thought they were supplied by the autotools?
> 
> This issue has been discussed earlier (https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg00130.html), but without conclusion.

There was a conclusion, from my POV:

  https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg00187.html

To make it more clear, this is an Autoconf misfeature, and if someone
wants to report a bug, it should be reported to the Autoconf
developers; we here have nothing we can do about this kind of
"progress".

Re: build modifies config.guess and config.sub

[Perry E. Metzger]

On 7/29/21 02:06, Eli Zaretskii wrote:
>>
>>> Howdy, all!
>>>
>>> Whenever I do a "git status" after cleaning up after a build, I learn that the files
>>>
>>> build-aux/config.guess
>>> build-aux/config.sub
>>>
>>> have been modified. It's easy enough to do a "git restore" on them, but should they should actually be checked in? I thought they were supplied by the autotools?
>> This issue has been discussed earlier (https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg00130.html), but without conclusion.
> There was a conclusion, from my POV:
>
>    https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg00187.html
>
> To make it more clear, this is an Autoconf misfeature, and if someone
> wants to report a bug, it should be reported to the Autoconf
> developers; we here have nothing we can do about this kind of
> "progress".

Couldn't we just not check in those two files?

Perry

Re: build modifies config.guess and config.sub

[Eli Zaretskii]

> Date: Thu, 29 Jul 2021 19:11:46 -0400
> From: "Perry E. Metzger" <perry@piermont.com>
> 
> > To make it more clear, this is an Autoconf misfeature, and if someone
> > wants to report a bug, it should be reported to the Autoconf
> > developers; we here have nothing we can do about this kind of
> > "progress".
> 
> Couldn't we just not check in those two files?

How will then cloning the repository produce them in the working tree?
Our build process doesn't generate them, and people do use older
versions of Autoconf (I do).

Re: build modifies config.guess and config.sub

[Perry E. Metzger]

On 7/30/21 02:03, Eli Zaretskii wrote:
>>
>> Couldn't we just not check in those two files?
> How will then cloning the repository produce them in the working tree?
> Our build process doesn't generate them, and people do use older
> versions of Autoconf (I do).
>
We could copy them in during the build. Alternatively, we could check in 
the latest versions; older versions of autoconf won't overwrite them.

Perry

Re: build modifies config.guess and config.sub

[Eli Zaretskii]

> Date: Fri, 30 Jul 2021 09:48:50 -0400
> Cc: emacs-devel@gnu.org
> From: "Perry E. Metzger" <perry@piermont.com>
> 
> On 7/30/21 02:03, Eli Zaretskii wrote:
> >>
> >> Couldn't we just not check in those two files?
> > How will then cloning the repository produce them in the working tree?
> > Our build process doesn't generate them, and people do use older
> > versions of Autoconf (I do).
> >
> We could copy them in during the build.

Sorry, I don't understand what that means in practice.  Please
elaborate.

> Alternatively, we could check in the latest versions; older versions
> of autoconf won't overwrite them.

Don't they come from some external Git repository?  If so, checking in
changed versions is asking for trouble.

Re: build modifies config.guess and config.sub

[Alan Third]

On Fri, Jul 30, 2021 at 04:54:36PM +0300, Eli Zaretskii wrote:
> > Date: Fri, 30 Jul 2021 09:48:50 -0400
> > Cc: emacs-devel@gnu.org
> > From: "Perry E. Metzger" <perry@piermont.com>
> > 
> > Alternatively, we could check in the latest versions; older versions
> > of autoconf won't overwrite them.
> 
> Don't they come from some external Git repository?  If so, checking in
> changed versions is asking for trouble.

It looks like they normally get updated along with Gnulib.
-- 
Alan Third

Re: build modifies config.guess and config.sub

[Eli Zaretskii]

> Date: Fri, 30 Jul 2021 19:35:25 +0100
> From: Alan Third <alan@idiocy.org>
> Cc: "Perry E. Metzger" <perry@piermont.com>, emacs-devel@gnu.org
> 
> On Fri, Jul 30, 2021 at 04:54:36PM +0300, Eli Zaretskii wrote:
> > > Date: Fri, 30 Jul 2021 09:48:50 -0400
> > > Cc: emacs-devel@gnu.org
> > > From: "Perry E. Metzger" <perry@piermont.com>
> > > 
> > > Alternatively, we could check in the latest versions; older versions
> > > of autoconf won't overwrite them.
> > 
> > Don't they come from some external Git repository?  If so, checking in
> > changed versions is asking for trouble.
> 
> It looks like they normally get updated along with Gnulib.

Yes, I know.