[bug-diffutils] bug#64811: bug#64811: Win-version now broken

[Gisle Vanem]

Paul Eggert wrote:

> > in my test:
> >    diff --recursive <rel-dir-1> <rel-dir-2>
> >
> > does not work.
>
> What are the failure symptoms?
>
> Is this something you can debug? I don't use MS-Windows and won't be of much help on that platform. My guess would be in 
> the fdopendir area; perhaps that guess will help you debug.

Correct.

Now I've made a simple test-program for 'openat()' based
on the examples at:
   https://pubs.opengroup.org/onlinepubs/9699919799/functions/fdopendir.html

A simple 'du' clone; attached.

I found 2 issues which I believe is related to this problem
on Windows:
   1) 'open()' + 'fdopendir()' can NOT contain '\\' slashes.
   2) 'openat()' MUST be given a fully qualified pathname.
      A relative dir like ' dp->d_name' does not work.

What does this tell you guys about the 'diff --recursive'
behaviour on Windows?


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fdopen-test.c
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