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Date: Thu, 5 Nov 2009 19:22:25 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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Subject: Re: src/winsup/cygwin ChangeLog syscalls.cc
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On Nov  5 13:17, Christopher Faylor wrote:
> On Thu, Nov 05, 2009 at 01:08:47PM -0500, Christopher Faylor wrote:
> >On Thu, Nov 05, 2009 at 06:34:50PM +0100, Corinna Vinschen wrote:
> >>Let's see:
> >>
> >>  rename ("foo.exe", "perl5.10.0.exe")  result: perl5.10.0.exe
> >>  rename ("foo.exe", "perl5.10.0")      result: perl5.10.0
> >>  rename ("foo", "perl5.10.0.exe")      result: perl5.10.0.exe
> >>  rename ("foo", "perl5.10.0")          result: perl5.10.0
> >>
> >>The latter one is a problem, because that's what happens when calling
> >>
> >>  strip perl5.10.0
> >>
> >>so after strip the binary is missing a .exe suffix.
> >>
> >>Sigh.
> >>
> >>Is there any *reliable* solution to this problem, other than never to
> >>add a .exe suffix?
> >
> >Isn't the reliable-but-slow method to check the magic at the beginning
> >of the file to see if it actually is a .exe?  I'm not sure we want to do
> >that though.
> 
> Which is, of course, what we're doing.  Duh.
> 
> I see why the strip case is problematic but I can't think of a way to
> fix it since the "state" of the temporary file is lost between stripping
> and renaming.

Right.  That's why I thought that any suffix given in the target file
name should be sufficient to avoid appending the .exe suffix, but
apparently it isn't.  Probably we would need to check for any kind
of Windows executable suffix like .exe, .sys, .com.  I have to admit,
though, that I never saw a .src suffix for a Windows binary...


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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