bug#61782: About some warning building Emacs master on MSYS2/MINGW64 [autogen, configure]

[Eli Zaretskii]

> Date: Sat, 25 Feb 2023 15:38:38 -0800
> Cc: 61782@debbugs.gnu.org
> From: Paul Eggert <eggert@cs.ucla.edu>
> 
> On 2023-02-25 01:49, Eli Zaretskii wrote:
> 
> > The second one is due to m4/xattr.m4.  Paul, this test should not be
> > run on MS-Windows (although running it is mostly harmless), as xattr
> > will not be supported there.
> 
> Perhaps something like the attached untested patch? Please feel free to 
> install it if it works.

Thanks, installed.