Make 4.4 on Win10 behaving oddly

Sorry if this isn't the right place to ask - I've been reading this list 
for years, and it was an easy option :)
I've been getting (copying) updated make.exe files from various 
installations as I set up new machines over the years.
I usually run make manually from a command prompt.
I've been doing this for years with no changes to anything else but I'm 
seeing some oddness with make 4.4.1 (Built for x86_64-pc-msys) that I 
got from a ruby install.
If I run make on my old makefiles, it looks to me  like it is starting a 
shell instead of running the commands.
It prints the necessary make command, and "Microsoft Windows[Version 
10.0...] and (c) Microsoft... and then a command prompt.
The command window  title then shows ...\cmd - make. If I type exit, 
(sometimes I have to Ctr-C first)  I get back to my original prompt.
I guess something is going wrong with my shell selection, but I've never 
had to manually set it before.
I copied over an older 4.1 (Built for Windows32) which I don't recall 
the source of, and that works fine.
Is there an easy solution to this?

On 28/02/2023 6:02 am, [email protected] wrote:
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>     1. GNU Make 4.4.1 released! (Paul Smith)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 26 Feb 2023 15:18:17 -0500
> From: Paul Smith <[email protected]>
> To: [email protected], [email protected]
> Subject: GNU Make 4.4.1 released!
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="utf-8"
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>      --------------------------------------------------------------------
>      GNU make is a tool which controls the generation of executables and
>      other non-source files of a program from the program's source files.
>
>      You can learn more at: https://www.gnu.org/software/make/
>      --------------------------------------------------------------------
>
> The next stable release of GNU make, 4.4.1, is available now for download:
>
>    c8469a3713cbbe04d955d4ae4be23eeb  make-4.4.1.tar.gz
>    c8b13b7477e812d4213a9b88ff0ff1d6  make-4.4.1.tar.lz
>
> You can obtain a copy from:           https://ftp.gnu.org/gnu/make/?C=M;O=D
> You can choose a nearby mirror:       https://ftpmirror.gnu.org/make/
> A list of mirror sites is available:  https://www.gnu.org/order/ftp.html
>
> - NEWS --------------------------------------------------------------------
>
> Version 4.4.1 (26 Feb 2023)
>
> This release is primarily a bug-fix release.
> A complete list of bugs fixed in this version is available here:
>
> https://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=110&set=custom
>
> * WARNING: Backward-incompatibility!
>    In previous releases it was not well-defined when updates to MAKEFLAGS made
>    inside a makefile would be visible.  This release ensures they are visible
>    immediately, even when invoking $(shell ...) functions.  Also, command line
>    variable assignments are now always present in MAKEFLAGS, even when parsing
>    makefiles.
>    Implementation provided by Dmitry Goncharov <[email protected]>
>
> * New feature: Parallel builds of archives
>    Previously it was not possible to use parallel builds with archives.  It is
>    still not possible using the built-in rules, however you can now override
>    the built-in rules with a slightly different set of rules and use parallel
>    builds with archive creation.  See the "Dangers When Using Archives" section
>    of the GNU Make manual, and https://savannah.gnu.org/bugs/index.php?14927
>
> * Previously target-specific variables would inherit their "export" capability
>    from parent target-specific variables even if they were marked private.  Now
>    private parent target-specific variables have no affect.  For more details
>    see https://savannah.gnu.org/bugs/index.php?61463
>
> * Disable FIFO jobserver on GNU/Hurd and Cygwin
>    Experimentation shows that the new FIFO-based jobserver doesn't work well on
>    GNU/Hurd or Cygwin: revert these systems to use the pipe-based jobserver.
>
> * Updates to allow building on OS/2
>    Provided by KO Myung-Hun <[email protected]>
>
> * New platform: GNU Make is supported on z/OS
>    Thanks to Igor Todorovski <[email protected]> for the patches and testing
>    assistance.
>
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