> Date: Sat, 9 Sep 2017 13:32:05 +0200 (CEST)
> From: Angelo Graziosi <angelo.g0@libero.it>
> Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org, rcopley@gmail.com
>
> > Il 9 settembre 2017 alle 12.37 Eli Zaretskii <eliz@gnu.org> ha scritto
> > That doesn't seem to be the problem.  If you configure Emacs with
> >
> >   --prefix=/c/whatever
> >
> > i.e. with a lower-case /c/, does the problem go away?
>
> No because I *already* use
>
>   prefixname="c/LocalApps/Emacs"
>   [...]
>   "${src_dir}/configure" --prefix="/${prefixname}"
>   [...]
>
> in my script..

What is the value of src_dir in that script?