bug#69994: 30.0.50; Issue building on msys

bug#69994: 30.0.50; Issue building on msys

[Ergus via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Hi:

I am trying to build master on msys and I get this error:


```
git clone ....
cd Emacs
./autogen.sh
Checking whether you have the necessary tools...
(Read INSTALL.REPO for more details on building Emacs)
Checking for autoconf (need at least version 2.65) ... ok
Your system has the required tools.
Running 'autoreconf -fi -I m4' ...
ac-wrapper: autoreconf: warning: auto-detected versions not found ( ); falling back to latest available
' is already registered with AC_CONFIG_FILES.
../autoconf-2.72/lib/autoconf/status.m4:289: AC_CONFIG_FILES is expanded from...
configure.ac:7795: the top level
autom4te-2.72: error: /usr/bin/m4 failed with exit status: 1
autoreconf-2.72: error: /usr/bin/autoconf-2.72 failed with exit status: 1
```

I have already build emacs in this same system with no issues.
Any idea?

Best,
Ergus

bug#69994:

[Ergus via Bug reports for GNU Emacs, the Swiss army knife of text editors]

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The issue was in my msys git configuration.

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bug#69994: 30.0.50; Issue building on msys

[Eli Zaretskii]

> Date: Mon, 25 Mar 2024 16:09:32 +0100
> From:  Ergus via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> I am trying to build master on msys and I get this error:
> 
> 
> ```
> git clone ....
> cd Emacs
> ./autogen.sh
> Checking whether you have the necessary tools...
> (Read INSTALL.REPO for more details on building Emacs)
> Checking for autoconf (need at least version 2.65) ... ok
> Your system has the required tools.
> Running 'autoreconf -fi -I m4' ...
> ac-wrapper: autoreconf: warning: auto-detected versions not found ( ); falling back to latest available
> ' is already registered with AC_CONFIG_FILES.
> ../autoconf-2.72/lib/autoconf/status.m4:289: AC_CONFIG_FILES is expanded from...
> configure.ac:7795: the top level
> autom4te-2.72: error: /usr/bin/m4 failed with exit status: 1
> autoreconf-2.72: error: /usr/bin/autoconf-2.72 failed with exit status: 1
> ```
> 
> I have already build emacs in this same system with no issues.
> Any idea?

Crystal ball says you cloned the repository with autocrlf having a
value other than 'false' in the Git configuration.

If that doesn't help, look into the latest changes to your system
and/or MSYS setup/packages.  There's no problem in Emacs, including
not on Windows.