[Bug 55124] New: Can't run Flutter SDK (cmd.exe doesn't support redirecting stderr for a block)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55124

            Bug ID: 55124
           Summary: Can't run Flutter SDK (cmd.exe doesn't support
                    redirecting stderr for a block)
           Product: Wine
           Version: 8.10
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: wine-bugs(a)winehq.org
          Reporter: alexhenrie24(a)gmail.com
      Distribution: ---

`wine flutter.bat` goes into an infinite loop that prints this message over and
over:

Can't recognize '2 (' as an internal or external command, or batch script.

It's coming from these lines in internal/shared.bat:

2>NUL (
  REM "3" is now stderr because of "2>NUL".
  CALL :subroutine %* 2>&3 9> "%cache_dir%\flutter.bat.lock" || GOTO
acquire_lock
)

Wine's cmd.exe does support redirecting stdout for a block of code, for
example:
> NUL (
>     COPY flutter.bat flutter2.bat
> )

But it does not support redirecting stderr in the same way.

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