version.el 3.06 KB
Newer Older
1
;;; version.el --- record version number of Emacs
Dave Love's avatar
#  
Dave Love committed
2

Gerd Moellmann's avatar
Gerd Moellmann committed
3
;;; Copyright (C) 1985, 1992, 1994, 1995, 1999, 2000, 2001
Gerd Moellmann's avatar
Gerd Moellmann committed
4
;;;   Free Software Foundation, Inc.
Dave Love's avatar
#  
Dave Love committed
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

;; Maintainer: FSF
;; Keywords: internal

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

26 27
;;; Commentary:

Dave Love's avatar
#  
Dave Love committed
28 29
;;; Code:

30
(defconst emacs-version "21.1.50" "\
Dave Love's avatar
#  
Dave Love committed
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
Version numbers of this version of Emacs.")

(defconst emacs-major-version
  (progn (string-match "^[0-9]+" emacs-version)
	 (string-to-int (match-string 0 emacs-version)))
  "Major version number of this version of Emacs.
This variable first existed in version 19.23.")

(defconst emacs-minor-version
  (progn (string-match "^[0-9]+\\.\\([0-9]+\\)" emacs-version)
	 (string-to-int (match-string 1 emacs-version)))
  "Minor version number of this version of Emacs.
This variable first existed in version 19.23.")

(defconst emacs-build-time (current-time) "\
Time at which Emacs was dumped out.")

(defconst emacs-build-system (system-name))

(defun emacs-version  (&optional here) "\
Return string describing the version of Emacs that is running.
If optional argument HERE is non-nil, insert string at point.
Don't use this function in programs to choose actions according
to the system configuration; look at `system-configuration' instead."
  (interactive "P")
  (let ((version-string 
         (format (if (not (interactive-p))
58 59
		     "GNU Emacs %s (%s%s%s)\n of %s on %s"
		   "GNU Emacs %s (%s%s%s) of %s on %s")
Dave Love's avatar
#  
Dave Love committed
60 61
                 emacs-version
		 system-configuration
62 63
		 (cond ((featurep 'motif) 
			(concat ", " (substring motif-version-string 4)))
Dave Love's avatar
#  
Dave Love committed
64 65
		       ((featurep 'x-toolkit) ", X toolkit")
		       (t ""))
66 67 68 69 70
		 (if (and (boundp 'x-toolkit-scroll-bars)
			  (memq x-toolkit-scroll-bars '(xaw xaw3d)))
		     (format ", %s scroll bars"
			     (capitalize (symbol-name x-toolkit-scroll-bars)))
		   "")
71
		 (format-time-string "%Y-%m-%d" emacs-build-time)
Dave Love's avatar
#  
Dave Love committed
72 73 74 75 76 77 78 79 80 81 82
                 emacs-build-system)))
    (if here 
        (insert version-string)
      (if (interactive-p)
          (message "%s" version-string)
        version-string))))

;;; We hope that this alias is easier for people to find.
(defalias 'version 'emacs-version)

;;; We put version info into the executable in the form that ident(1) uses.
83
(or (memq system-type '(vax-vms windows-nt))
Dave Love's avatar
#  
Dave Love committed
84 85 86 87 88 89 90 91
    (purecopy (concat "\n$Id: " (subst-char-in-string ?\n ? (emacs-version))
		      " $\n")))

;;Local variables:
;;version-control: never
;;End:

;;; version.el ends here