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 ...

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.
And when I use

  C-x C-f CV TAB

I get cvs-status.el. What do you get in these cases?

I believe this used to work for me.