Re:

[Angelo Graziosi]

> Try this in your .emacs :
> 
> (let ((dir (file-name-directory (car command-line-args))))
>   (setenv "PATH" (concat (getenv "PATH") path-separator dir))
>   (setq exec-path (append exec-path (list dir))))

I tried this

(let ((dir (file-name-directory (car command-line-args))))
  (setenv "PATH" (concat (getenv "PATH") path-separator dir))
  (setq exec-path (append exec-path '("C:/msys64/mingw64/bin" 
"C:/msys64/usr/bin"))))

but it does not seem to work.

First, I had to change it this way

- ...setq exec-path (append exec-path (list dir)...
+ ...setq exec-path (append exec-path '(list dir)...

otherwise Emacs won't start.

Second, with that change only '...\Emacs\bin' is added to the PATH, not the 
MSYS2/MINGW64 paths...

Instead of change the init file, it is some year I use a Windows .lnk with 

Target: C:\Windows\System32\cmd.exe /c "SET path=C:\msys64\mingw64\bin;%path%&& 
SET PRELOAD_WINSOCK=1&& START /D ^"C:\LocalApps\Emacs\bin^" runemacs.exe"


Ciao,
  Angelo.