Eli Zaretskii <eliz@gnu.org> writes:

>> > This actually means that I misunderstood the code.  Now that I see the
>> > truth, why is it a good idea to compare directories case-sensitively
>> > when the filesystem is not?  That's not something users will expect.
>> 
>> To accurately assess if a directory name matches with possible
>> case-sensitivity, the process would be:
>> 1. check the case-sensitivity of the filesystem
>> 2. If case insensitive, check the case-sensitivity of each subdirectory
>> (using Windows queryCaseSensitiveInfo if applicable)
>> 3. map over the components of the directory name, checking each subdirectory
>> with the correct case-sensitivity setting
>
> We already have all that in file-equal-p.  We should just use is
> there.

Ok, patch is attached (tested on FAT32 disk).