Re: [Mingw-users] 3.4.5 mingw-vista special r2 still broken on Vista

[John E. / T. <td...@td...>]

Brian Dessent wrote:
> Like I said, I haven't quite looked into the details other than to
> verify the problem.  But there is a difference in Vista (completely
> separate from the _access issue) with how the shell works, which breaks
> the relocatability.  It's definitely in the shell because using a
> different shell makes the problem go away, and I suspected argv[0]
> because calling it with an absolute path fixes the problem, as does a
> dummy .bat wrapper.  
>   

I believe this is indeed the problem Luis Lavena was experiencing. 
Interestingly enough, it is still access() related, but a different 
issue than the X_OK bit issue.

Shells like Cygwin's or mSYS' bash, which give GCC a qualified argv[0] 
even when the invocation is unqualified, are the exception rather than 
the rule. GCC handles an unqualified argv[0] by searching for it in 
PATH, and this worked fine everywhere except under Vista, where for some 
reason access("C:\fully\qualified\path\to\gcc.exe", 0) returns nonzero.

-John E.