How to set the Makefile directory in emacs

How to set the Makefile directory in emacs

[Luca Trevisani]

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Hi, I am editing a project with source files in many different subfolders. I wonder if I can set in emacs the default folder in wich the Makefile is, so that when I issue the command "make -k" emacs run it in the correct folder no matter where is the file I am editing.

Thank you very much.

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Re: How to set the Makefile directory in emacs

[Peter Dyballa]

Am 11.05.2007 um 15:56 schrieb Luca Trevisani:

> am editing a project with source files in many different  
> subfolders. I wonder if I can set in emacs the default folder in  
> wich the Makefile is, so that when I issue the command "make -k"  
> emacs run it in the correct folder no matter where is the file I am  
> editing.

Launch GNU Emacs from this directory!

Set HOME to that directory!

Add a (dired "/that/elder/directory/with/Makefile/in/it") to your  
~/.emacs!

--
Greetings

   Pete

Bigamy is having one wife too many. Monogamy is the same.     — Oscar  
Wilde

Re: How to set the Makefile directory in emacs

[Eli Zaretskii]

> From: "Luca Trevisani" <lucatrv@hotmail.com>
> Date: Fri, 11 May 2007 15:56:15 +0200
> 
> Hi, I am editing a project with source files in many different
> subfolders. I wonder if I can set in emacs the default folder in wich
> the Makefile is, so that when I issue the command "make -k" emacs run it
> in the correct folder no matter where is the file I am editing.

Two possible ways:

  . Visit the Makefile and run the "make -k" command from the buffer
    that visits Makefile.

  . Instead of "make -k", use "cd /the/right/folder; make -k" as your
    compilation command.

Re: How to set the Makefile directory in emacs

[Stefan Monnier]

> Hi, I am editing a project with source files in many different
> subfolders. I wonder if I can set in emacs the default folder in wich the
> Makefile is, so that when I issue the command "make -k" emacs run it in
> the correct folder no matter where is the file I am editing.

You can try the following:

(defun compilation-find-file-up (regexp)
  "Look up the directory hierarchy for a file matching REGEXP."
  (catch 'found
    (let ((user (nth 2 (file-attributes default-directory)))
          ;; Abbreviate, so as to stop when we cross ~/.
          (dir (abbreviate-file-name default-directory))
          files)
      (while (and dir (equal user (nth 2 (file-attributes dir))))
        (if (setq files (directory-files dir 'full regexp))
            (throw 'found (car files))
          (if (equal dir
                     (setq dir (file-name-directory
                                (directory-file-name dir))))
              (setq dir nil))))
      nil)))

and then

(setq compile-command
  '(let ((mf (compilation-find-file-up "\\`\\(GNU\\)?[Mm]akefile\\'")))
     (if mf (setq mf (file-name-directory mf)))
     (concat (if (and mf (not (equal mf default-directory)))
                 (format "cd %s; "
                         (shell-quote-argument
                          (file-relative-name
                           (directory-file-name mf)))))
             "make -k ")))


-- Stefan