helpAutoconf - Support: sr #110324, autoupdate does some nonsensical...


sr #110324: autoupdate does some nonsensical changes

Submitted by:  Bruno Haible <haible>
Submitted on:  Sun 04 Oct 2020 10:34:05 PM UTC  
Category:  None Priority:  1 - Later
Severity:  3 - Normal Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Operating System:  None

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Fri 30 Oct 2020 08:47:57 PM UTC, comment #1: 

Regrettably, I do not think it will be possible to make any improvements to autoupdate for 2.70.  The algorithm it uses is already extremely brittle and I'm buried in regressions in automake itself.

Zack Weinberg <zackw>
Project Administrator
Sun 04 Oct 2020 10:34:05 PM UTC, original submission:  

In Zack Weinberg wrote:
"The diff produced by autoupdate is mostly not usable as is.   In fact, it looks to me more like a todo list for bugs and missing features in autoupdate itself :-/"

Here is another example, from GNU gperf. Find the input and the changes by autoupdate 2.69c attached.

1) Changing AC_PREREQ([2.64]) to AC_PREREQ([2.69c]) — or, once 2.70 is released, to AC_PREREQ([2.70]) — is unwelcome, because many distros which run autoreconf will not have autoconf 2.70 is installed.
While it is certainly OK to change AC_PREREQ([2.13]) to AC_PREREQ([2.64]) or so, AC_PREREQ([2.69c]) is a too strong requirement.

2) Changing AC_LANG_SAVE() to m4_warn(...) is nonsense.

3) Leaving AC_LANG_SAVE in the output is not good, because autoupdate is meant to eliminate this call.

The other parts are helpful, though.

Bruno Haible <haible>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:

Attached Files
file #49921: added by haible (1KiB - text/x-patch)
file #49920: added by haible (2KiB - application/octet-stream)


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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-10-30 zackw Priority5 - Normal => 1 - Later
    2020-10-04 haible Attached File- => Added, #49921
    2020-10-04 haible Attached File- => Added, #49920

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