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To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>,
        "cygwin AT cygwin DOT com"
 <cygwin AT cygwin DOT com>
Subject: RE: Incorrect command line handling when launching Cygwin program
 from Windows
Thread-Topic: Incorrect command line handling when launching Cygwin program
 from Windows
Thread-Index: AQHcAhrXvqVa+zCIF0i6LmjvRZSGw7RN0BEAgAAWDrA=
Date: Fri, 1 Aug 2025 15:34:16 +0000
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From: "Old, Oliver via Cygwin" <cygwin AT cygwin DOT com>
Reply-To: "Old, Oliver" <Oliver DOT Old AT loewen DOT de>
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> >echo-win32.exe C:\"Program Files"\
> echo-win32.exe
> C:"Program
> Files\
>
> Is this as you expected?
>
> >echo.exe C:\"Program Files"\
> echo
> C:\Program Files\
>
> This makes more sense to me.

That is as expected. It is the way a Windows program would split the
command line. To me, it does not make sense that Cygwin programs process
the command line, which was produced by a Windows program, in a manner
which is inconsistent with how a Windows program would.

If the sole purpose of taking a Windows command line is being able to be
called from a Windows program, how does it make sense to diverge from
Windows' parsing logic, aside from handling at-files?

It sadly breaks builds driven by Windows-native tools since they expect
the standard command line handling.

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