Re: Build failure on M$ (using MSVC): Patch enclosed

[Jason Rumney <jasonr@gnu.org>]

dhruva wrote:
> The below patch fixes the bug of infinite looping.
>
> diff --git a/lisp/files.el b/lisp/files.el
> index ee5efe4..c680d32 100644
> --- a/lisp/files.el
> +++ b/lisp/files.el
> @@ -3120,8 +3120,9 @@ If the file is in a registered project, a cons from
>  `project-directory-alist' is returned.
>  Otherwise this returns nil."
>    (let ((dir (file-name-directory file))
> +       (root (expand-file-name "/"))
>         (result nil))
> -    (while (and (not (string= dir "/"))
> +    (while (and (not (string= dir root))
>                 (not result))
>        (cond
>         ((setq result (assoc dir project-directory-alist))
>   

I don't think this is sufficient for the case when the current directory 
is say "C:/some_dir/" and file is "D:/file.txt"

Should this new project code be enabled by default? It seems to add a 
lot of directory searching overhead for simple file visiting, especially 
in batch mode.