Subject: Re: bug#28601: 26.0.50; configure: error: Emacs does not support 'x86_64-pc-msys' systems.

From: Glenn Morris <[email-masked]>
Date: Wed, 27 Sep 2017 17:37:00 -0400

Vincent Belaïche wrote:

> There is no such thing as a mingw64_shell.bat script, but there is a
> msys2_shell.cmd script, which one can launch with the -mingw64 for
> MSYSTEM to be set accordingly to MSYSTEM=MINGW64.

Sounds like MinGW has changed how things work and the instructions in
nt/INSTALL.W64 need updating.

> checking the compiler's target... x86_64-pc-msys
> configure: error: Emacs does not support 'x86_64-pc-msys' systems.

This is MinGW-specific code added in https://debbugs.gnu.org/19111