bug#842: 23.0.60; find-file prompt is case sensitive on w32

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Drew Adams wrote:
>>>> Try for example
>>>>   C-x C-f cha TAB
>>>> in emacs/src.
>>>> This should be case insensitive on w32 since the file 
>>>> system is case insensitive.
>>>>
>>>> In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
>>>>  of 2008-08-29
>>>> Windowing system distributor `Microsoft Corp.', version 5.1.2600
>>>> configured using `configure --with-gcc (3.4) --no-opt --cflags
>>>> -Ic:/g/include -fno-crossjumping'
>>> I don't see that. emacs -Q with:
>>>
>>> In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
>>>  of 2008-08-29 on LENNART-69DE564
>>> Windowing system distributor `Microsoft Corp.', version 5.1.2600
>>> configured using `configure --with-gcc (3.4) --no-opt 
>> --cflags -Ic:/g/include
>>> -fno-crossjumping'
>>>
>>> I dont' have a src directory, but I tried it in a directory 
>>> with uppercase, lowercase, and mixed case files, and C-x C-f
>>> is case insensitive.
>> Strange, this should be the same binaries that I am using ...
> 
> Dunno - your lines above don't include "on LENNART-69DE564"; mine do.

It is the same.

>> Is it perhaps the first character that matters? I am trying 
>> in emacs/src with  C-x C-f c TAB and there are some files
>> beginning with "c" and some with "C".
>> But there are more problems of this kind. Trying in emacs/lisp
>>   C-x C-f CVS TAB
>> I get [complete but not unique] and CVS/ is shown as only alternative.
> 
> For me it is completed to c:/.../lisp/cvs-status.el, with no minibuffer message.
> 
> Do you have another file (in the dir) that starts with "cvs"?

Ah, yes. You do not have that one so this was a bad test. (It is the CVS
directory, which is hidden.)

Maybe if you create a file named CVS and try again?

>> And when I use C-x C-f CV TAB I get cvs-status.el.
> 
> Same here - same as above, exactly.
> 
>> What do you get in these cases?
>> I believe this used to work for me.
> 
> Are you sure you're using -Q?

Yes, I am a bit tired, stressed, but ... ;-)