bug#41242: Port feature/native-comp to Windows - Determine the emacs root dir...

[Eli Zaretskii]

> From: Andrea Corallo <akrl@sdf.org>
> Cc: 41242@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>
> Date: Fri, 29 May 2020 12:12:49 +0000
> 
> question: what if instead of using Ffile_exists we just use fopen to
> check if the file exists in dump_do_dump_relocation?
> 
> I think the origin of "the trouble" is just there while checking if a
> file exists, the path in discussion should be already absolute by
> construction so I suspect we do not need Fexpand_file to come into play.

Will that work if the files were moved?