bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree

[Andrea Corallo]

Eli Zaretskii <eliz@gnu.org> writes:

>> Cc: 46256@debbugs.gnu.org
>> Date: Fri, 26 Feb 2021 20:34:10 +0000
>> From:  Andrea Corallo via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> --- a/src/comp.c
>> +++ b/src/comp.c
>> @@ -3983,6 +3983,10 @@ DEFUN ("comp-el-to-eln-filename", 
>> Fcomp_el_to_eln_filename,
>>    if (NILP (Ffile_exists_p (filename)))
>>      xsignal1 (Qfile_missing, filename);
>>  
>> +#ifdef WINDOWSNT
>> +  filename = Fw32_long_file_name (filename);
>> +#endif
>
> Is "filename" here a name of an existing file?  If not,
> Fw32_long_file_name will return nil.

It should always be as we explicitly check for that.

Quick question: I assumed Fw32_long_file_name works for directories as
well, is this correct?

Thanks

  Andrea