finding emacs version

finding emacs version

[Rustom Mody]

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How do you find out which emacs version is running in elisp?

I want to do:

if version is emacs-21
    some code
else
    some other code

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RE: finding emacs version

[Drew Adams]

> How do you find out which emacs version is running in elisp?

See these variables (via C-h v):
emacs-major-version, emacs-minor-version, emacs-version

Re: finding emacs version

[Lennart Borgman (gmail)]

Rustom Mody wrote:
> How do you find out which emacs version is running in elisp?
> 
> I want to do:
> 
> if version is emacs-21
>     some code
> else
>     some other code



Something like this perhaps:

(condition-case err
     (progn
       (cond
        ( (equal emacs-version "21.3.1")
	 (setq custom-file "~/.emacs-cust-21.3.el"))
        ( t
	 (setq custom-file "~/.emacs-cust-cvs.el")
          ))
       (when (file-exists-p custom-file)
	(load custom-file)))
   (error
    (lwarn 'my-emacs :error "Error loading custom:\n  %s" 
(error-message-string err))))

Re: finding emacs version

[Tassilo Horn]

"Rustom Mody" <rustompmody@gmail.com> writes:

Hi,

> How do you find out which emacs version is running in elisp?

,----[ C-h v emacs-major-version RET ]
| emacs-major-version is a variable defined in `version.el'.
| Its value is 22
| 
| Documentation:
| Major version number of this version of Emacs.
| This variable first existed in version 19.23.
`----

HTH,
Tassilo
-- 
People sometimes  ask me if it  is a sin in  the Church of  Emacs to use
vi. Using a free  version of vi is not a sin; it  is a penance. So happy
hacking. (Richard M. Stallman)

Re: finding emacs version

[Harald Hanche-Olsen]

+ "Rustom Mody" <rustompmody@gmail.com>:

| How do you find out which emacs version is running in elisp?I want
| to do:if version is emacs-21 some codeelse some other code

(cond ((string= (substring emacs-version 0 2) "21")
       code for version 21)
      ((string= (substring emacs-version 0 2) "22")
       code for version 22)
      (t code for other versions))

-- 
* Harald Hanche-Olsen     <URL:http://www.math.ntnu.no/~hanche/>
- It is undesirable to believe a proposition
  when there is no ground whatsoever for supposing it is true.
  -- Bertrand Russell

Re: finding emacs version

[Xavier Maillard]

Hi,

This is what I am currently using to load a custom file according
to my `xm-emacs-name' variable which is set to emacs-23 for this
session.

(when (featurep 'custom)
  (setq custom-file
	(concat
	 (or (getenv "XDG_CONFIG_HOME") "~") "/emacs/conf/"
	 xm-emacs-name
	 "-custom.el")
	)

  ;; load it, if it's there.
  (load custom-file t))

Hope that'll help.

	Xavier
-- 
http://www.gnu.org
http://www.april.org
http://www.lolica.org

Re: finding emacs version

[Stefan Monnier]

> How do you find out which emacs version is running in elisp?
> I want to do:

> if version is emacs-21
>    some code
> else
>    some other code

Please check the archive for this mailing list.  It's been asked many times
in the past.  And part of the answer is that you probably want to check
something more specific than the version number.


        Stefan