version.el 3.27 KB
Newer Older
1
;;; version.el --- record version number of Emacs
Dave Love's avatar
#  
Dave Love committed
2

3
;; Copyright (C) 1985, 1992, 1994-1995, 1999-2012
Glenn Morris's avatar
Glenn Morris committed
4
;;   Free Software Foundation, Inc.
Dave Love's avatar
#  
Dave Love committed
5 6 7

;; Maintainer: FSF
;; Keywords: internal
8
;; Package: emacs
Dave Love's avatar
#  
Dave Love committed
9 10 11

;; This file is part of GNU Emacs.

12
;; GNU Emacs is free software: you can redistribute it and/or modify
Dave Love's avatar
#  
Dave Love committed
13
;; it under the terms of the GNU General Public License as published by
14 15
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
Dave Love's avatar
#  
Dave Love committed
16 17 18 19 20 21 22

;; 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
23
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
Dave Love's avatar
#  
Dave Love committed
24

25 26
;;; Commentary:

27 28 29
;; This file is loaded uncompiled when dumping Emacs.
;; Doc-strings should adhere to the conventions of make-docfile.

Dave Love's avatar
#  
Dave Love committed
30 31
;;; Code:

32 33
(defconst emacs-major-version (progn (string-match "^[0-9]+" emacs-version) (string-to-number (match-string 0 emacs-version))) "\
Major version number of this version of Emacs.
Dave Love's avatar
#  
Dave Love committed
34 35
This variable first existed in version 19.23.")

36 37
(defconst emacs-minor-version (progn (string-match "^[0-9]+\\.\\([0-9]+\\)" emacs-version) (string-to-number (match-string 1 emacs-version))) "\
Minor version number of this version of Emacs.
Dave Love's avatar
#  
Dave Love committed
38 39 40 41 42
This variable first existed in version 19.23.")

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

43 44
(defconst emacs-build-system (system-name) "\
Name of the system on which Emacs was built.")
Dave Love's avatar
#  
Dave Love committed
45

Juanma Barranquero's avatar
Juanma Barranquero committed
46
(defun emacs-version (&optional here) "\
Dave Love's avatar
#  
Dave Love committed
47 48 49 50 51
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")
52
  (let ((version-string
53
         (format (if (not (called-interactively-p 'interactive))
54 55
		     "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
56 57
                 emacs-version
		 system-configuration
58
		 (cond ((featurep 'motif)
59
			(concat ", " (substring motif-version-string 4)))
60 61
		       ((featurep 'gtk)
			(concat ", GTK+ Version " gtk-version-string))
62
		       ((featurep 'x-toolkit) ", X toolkit")
Dan Nicolaescu's avatar
Dan Nicolaescu committed
63
		       ((featurep 'ns)
64
			(format ", NS %s" ns-version-string))
Dave Love's avatar
#  
Dave Love committed
65
		       (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
                 emacs-build-system)))
73
    (if here
Dave Love's avatar
#  
Dave Love committed
74
        (insert version-string)
75
      (if (called-interactively-p 'interactive)
Dave Love's avatar
#  
Dave Love committed
76 77 78
          (message "%s" version-string)
        version-string))))

Stefan Monnier's avatar
Stefan Monnier committed
79
;; We hope that this alias is easier for people to find.
Dave Love's avatar
#  
Dave Love committed
80 81
(defalias 'version 'emacs-version)

Richard M. Stallman's avatar
Richard M. Stallman committed
82
;; We put version info into the executable in the form that `ident' uses.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
83
(or (eq system-type 'windows-nt)
Juanma Barranquero's avatar
Juanma Barranquero committed
84
    (purecopy (concat "\n$Id: " (subst-char-in-string ?\n ?\s (emacs-version))
Dave Love's avatar
#  
Dave Love committed
85 86
		      " $\n")))

87 88 89 90
;; Local Variables:
;; version-control: never
;; no-byte-compile: t
;; End:
Dave Love's avatar
#  
Dave Love committed
91 92

;;; version.el ends here