[sr #110397] autoconf 2.70: autotest.m4 error

URL:
  <https://savannah.gnu.org/support/?110397>

                 Summary: autoconf 2.70: autotest.m4 error
                 Project: Autoconf
            Submitted by: None
            Submitted on: Tue 08 Dec 2020 11:09:23 PM UTC
                Category: None
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: [email protected]
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: Mac OS

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Details:

Attempting to run autoconf 2.70 on the packaged autotest.m4 produces the
following error:

```
==> /usr/local/Cellar/autoconf/2.70/bin/autoconf autotest.m4
unknown channel m4trace: -1- _m4_warn(syntax, AC_INIT was never used, )
m4trace: -1- _m4_warn(syntax, AC_OUTPUT was never used, )
 at /usr/local/Cellar/autoconf/2.70/share/autoconf/Autom4te/Channels.pm line
631.
	Autom4te::Channels::msg("m4trace: -1- _m4_warn(syntax, AC_INIT was never
used, )\x{a}m4tra"..., undef, undef, "partial", 0) called at
/usr/local/Cellar/autoconf/2.70/bin/autom4te line 1073
```

A similar error is generated when one attempts to build automake using the
newly built autoconf.

These errors were generated in Homebrew CI runs here:
https://github.com/Homebrew/homebrew-core/pull/66511

I can also reproduce the error quoted above on my local machine. Assistance
would be appreciated.




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