Is this a bug or a behavior?

Larry Hall (Cygwin)
Fri Feb 15 16:47:00 GMT 2013

On 2/15/2013 12:29 AM, Centrych Administrator wrote:


> How can it ever be consistent while 'filename' and filename.exe' are allowed
> to exist in the same directory?
> Is there some way to differentiate between a Windows .exe and a Cygwin
> binary, like grep.exe, that's intended to execute within the Cygwin
> environment?

I believe these questions are the crux of your inquiry so I've stripped
out the surrounding details.  Apologies if you feel I've removed something
you feel is a significant point.

This goes to the heart of a difference between how Windows and Linux treat
executables and various ingrained assumptions both make about their
respective expectations (essentially what Adam said ;-) ).  Cygwin does try
to bridge this gap but it has its limits as well.  This is actually not
new issue and has been discussed many times in the past on this list.  If
you're interested in the details or, even better, in improving what's
currently implemented, I'd recommend reviewing previous discussions, the
ideas they generated, and the issues and limitations mentioned.  That
should help you understand the current state and provide you with an
informed basis if you want to take a swing at providing some patch.

The only short answer I can give you is that the current state is a 
compromise.  That doesn't mean there isn't a better one.  Just that it's
a complicated area for many reasons so getting to a better state is also



A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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