triplet change in bash

[wsfulton]

Description / Steps to reproduce the issue

076c4a9 changes the environment variable from

MACHTYPE=x86_64-pc-msys

to

MACHTYPE=x86_64-pc-cygwin

We use this environment variable to determine whether we can pass / or - to Windows executables as sometimes / is expanded to a Windows path such as C:/msys64/nologo. So this breaks how we pass options to Windows executables. This is in a Mingw-w64 + msys2 environment. Is there another more correct way to detect when bash expands '/' that we should be using? Maybe this is something to do with Mingw-64 rather than msys, but if not, this seems to be a regression in the way bash is built for msys2.

Expected behavior

See above

Actual behavior

See above

Verification

• I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MSYS_NT-10.0-20348

Are you willing to submit a PR?

No response

[lazka]

You can disable the conversion in all cases using export MSYS2_ARG_CONV_EXCL='*' see https://www.msys2.org/docs/filesystem-paths/#automatic-unix-windows-path-conversion

Or does this not help in your case?

Another way to check for our bash is to check if the "MSYSTEM" env var exists.

For more context, the change you linked is part of https://www.msys2.org/news/#2025-02-14-moving-msys2-closer-to-cygwin