Side-by-side configuration is incorrect reported as permission denied

Christopher Faylor
Sat Aug 11 19:54:00 GMT 2012

On Sat, Aug 11, 2012 at 10:32:13AM -0700, Andrew DeFaria wrote:
>On 08/10/2012 07:32 PM, Larry Hall (Cygwin) wrote:
>> On 8/10/2012 7:31 PM, Andrew DeFaria wrote:
>>> I use Cygwin a lot. And I kick off Windows processes a lot. Recently 
>>> I've
>>> been having a problem with my system but from Cygwin all I see is
>>> "permission denied":
>>>     Ltsdo-adefaria:cd /cygdrive/c/Program\ 
>>> Files/IBM/RationalSDLC/Clearquest
>>>     Ltsdo-adefaria:ls -l clearquest.exe
>>>     -rwxr-xr-x+ 1 Administrators clearusers 245760 Jun  2  2011
>>>     clearquest.exe*
>>>     Ltsdo-adefaria:clearquest
>>>     bash: ./clearquest: Permission denied
>>>     Ltsdo-adefaria:
>>> However if I use cmd the real error message comes out:
>>>     Ltsdo-adefaria:cmd /c clearquest
>>>     The application has failed to start because its side-by-side
>>>     configuration is incorrect. Please see the application event log or
>>>     use the command-line sxstrace.exe tool for more detail.
>>> I know that this "side-by-side configuration is incorrect" is a
>>> configuration error on my machine and I need to fix it, but shouldn't
>>> Cygwin's exec(2) report the "side-by-side" error instead of the more
>>> erroneous "Permission denied" error?
>> Cygwin doesn't report Windows error codes.  It reports POSIX ones.  I
>> have no idea why there would be a POSIX error code for side-by-side
>> errors but if there were, then reporting that is more appropriate.
>I thought that perhaps Cygwin would report back error *messages* not 
>just error *codes*...

Cygwin emulates Linux.  "Permission denied" is an error message associated
with a specific errno.  Neither Cygwin nor Linux know anything about a
"side-by-side" configuration problem.


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