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From: Harald Hanche-Olsen <hanche@math.ntnu.no>
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Subject: Re: finding emacs version
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+ "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