Re: MinGW build on master fails with Error 127

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 24 Dec 2022 15:18:02 +0100
> Cc: emacs-devel@gnu.org
> From: Loreno Heer <helohe@bluewin.ch>
> 
> I did and if I understand it correctly they basically say that they did
> some change but it is now up to emacs to change the build behavior:
> 
> https://github.com/msys2/MINGW-packages/issues/14573#issuecomment-1364532147

Are you building Emacs on Windows 7?  If yes, I understand what they
are saying: that MinGW64 no longer supports Windows 7.

If you build on a later version of Windows, then I don't understand
what they are saying:

  As examples mentioned on #14452 illustrate, a package can support
  Win7 fine but if we say to its build system that we target >Win7 the
  resulting binary may be incompatible with Win7. This means in
  practice that Emacs (or any other software) can't rely on using our
  packages as runtime dependencies for supporting Win7.

Emacs will support MS-Windows versions as old as Windows 9X, as long
as the MinGW headers and runtime support those versions.  If your
MinGW supports only Windows versions newer than some version N, then
Emacs cannot magically overcome this limitation, and will also support
only versions of Windows newer than N.