comparison lisp/paths.el @ 0:376386a54a3c r19-14

Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 ;;; paths.el --- define pathnames for use by various Emacs commands.
2
3 ;; Copyright (C) 1986, 1988, 1993, 1994 Free Software Foundation, Inc.
4
5 ;; Maintainer: FSF
6 ;; Keywords: internal
7
8 ;; This file is part of XEmacs.
9
10 ;; XEmacs is free software; you can redistribute it and/or modify it
11 ;; under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; XEmacs is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
22 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23
24 ;;; Synched up with: FSF 19.30.
25
26 ;;; Commentary:
27
28 ;; These are default settings for names of certain files and directories
29 ;; that Emacs needs to refer to from time to time.
30
31 ;; If these settings are not right, override them with `setq'
32 ;; in site-start.el. Do not change this file.
33
34 ;;; Code:
35
36 ;Note: FSF's version is:
37 ;(defvar Info-default-directory-list
38 ; (let ((start (list "/usr/local/lib/info/"
39 ; ;; This comes second so that, if it is the same
40 ; ;; as configure-info-directory (which is usually true)
41 ; ;; and Emacs has been installed (also usually true)
42 ; ;; then the list will end with two copies of this;
43 ; ;; which means that the last dir file Info-insert-dir
44 ; ;; finds will be the one in this directory.
45 ; "/usr/local/info/"))
46 ; (configdir (file-name-as-directory configure-info-directory)))
47 ; (setq start (nconc start (list configdir)))
48 ; start)
49 ; "List of directories to search for Info documentation files.
50 ;They are searched in the order they are given in this list.
51 ;Therefore, the directory of Info files that come with Emacs
52 ;normally should come last (so that local files override standard ones).")
53
54 ;Our commented-out version is:
55 ;(defvar Info-default-directory-list
56 ; (let ((start (list "/usr/local/info/"
57 ; "/usr/local/lib/info/"))
58 ; (configdir (file-name-as-directory configure-info-directory)))
59 ; (or (member configdir start)
60 ; (setq start (nconc start (list configdir))))
61 ; (or (member (expand-file-name "../info/" data-directory) start)
62 ; (setq start
63 ; (nconc start
64 ; (list (expand-file-name "../info/" data-directory)))))
65 ; start)
66 ; "List of directories to search for Info documentation files.")
67
68 (defvar news-path "/usr/spool/news/"
69 "The root directory below which all news files are stored.")
70
71 (defvar news-inews-program nil
72 "Program to post news.")
73
74 ;(defvar gnus-default-nntp-server ""
75 ; ;; set this to your local server
76 ; "The name of the host running an NNTP server.
77 ;If it is a string such as \":DIRECTORY\", then ~/DIRECTORY
78 ;is used as a news spool. `gnus-nntp-server' is initialised from NNTPSERVER
79 ;environment variable or, if none, this value.")
80
81 ;(defvar gnus-nntp-service "nntp"
82 ; "NNTP service name, usually \"nntp\" or 119).
83 ;Go to a local news spool if its value is nil, in which case `gnus-nntp-server'
84 ;should be set to `(system-name)'.")
85
86 (defvar gnus-local-domain nil
87 "*Your domain name without a host name: for example, \"ai.mit.edu\".
88 The DOMAINNAME environment variable is used instead if defined.
89 If the function `system-name' returns a fully qualified domain name,
90 there is no need to set this variable.")
91
92 (defvar gnus-local-organization nil
93 "*The name of your organization, as a string.
94 The `ORGANIZATION' environment variable is used instead if defined.")
95
96 (defvar mh-progs nil
97 "Directory containing MH commands.")
98
99 (defvar mh-lib nil
100 "Directory of MH library.")
101
102 (defvar rmail-file-name (purecopy "~/RMAIL")
103 "Name of user's primary mail file.")
104
105 (defvar gnus-startup-file (purecopy "~/.newsrc")
106 "The file listing groups to which user is subscribed.
107 Will use `gnus-startup-file'-SERVER instead if exists.")
108
109 (defconst rmail-spool-directory nil
110 "Name of directory used by system mailer for delivering new mail.
111 Its name should end with a slash.")
112
113 (defconst sendmail-program nil
114 "Program used to send messages.")
115
116 (defconst remote-shell-program nil
117 "Program used to execute shell commands on a remote machine.")
118
119 (defconst term-file-prefix
120 (purecopy (if (eq system-type 'vax-vms) "[.term]" "term/"))
121 "If non-nil, Emacs startup does (load (concat term-file-prefix (getenv \"TERM\")))
122 You may set this variable to nil in your `.emacs' file if you do not wish
123 the terminal-initialization file to be loaded.")
124
125 (defconst manual-program nil
126 "Program to run to print man pages.")
127
128 (defconst abbrev-file-name
129 (purecopy (if (eq system-type 'vax-vms)
130 "~/abbrev.def"
131 "~/.abbrev_defs"))
132 "*Default name of file to read abbrevs from.")
133
134 (defconst directory-abbrev-alist
135 (list
136 ;;
137 ;; This matches the default Sun automounter temporary mount points. These
138 ;; temporary mount points may go away, so it's important that we only try
139 ;; to read files under the "advertised" mount point, rather than the
140 ;; temporary one, or it will look like files have been deleted on us.
141 ;; Whoever came up with this design is clearly a moron of the first order,
142 ;; but now we're stuck with it, no doubt until the end of time.
143 ;;
144 ;; For best results, automounter junk should go near the front of this
145 ;; list, and other user translations should come after it.
146 ;;
147 ;; You may need to change this if you're not running the Sun automounter,
148 ;; if you're not running in the default configuration. Because the
149 ;; designers (and I use that term loosely) of the automounters failed to
150 ;; provide any uniform way of disambiguating a pathname, emacs needs to
151 ;; have knowledge about exactly how the automounter mangles pathnames
152 ;; (and this knowledge is basically impossible to derive at run-time.)
153 ;;
154 (cons (purecopy "\\`/tmp_mnt/") (purecopy "/"))
155 ))
156
157 ;; Formerly, the values of these variables were computed once
158 ;; (at dump time). However, with the advent of pre-compiled binaries
159 ;; and homebrewed systems such as Linux where who knows where the
160 ;; hell the various programs may be located (if they even exist at all),
161 ;; it's clear that we need to recompute these values at run time.
162 ;; In typical short-sightedness, site administrators have been told up
163 ;; till now to do `setq's in site-init.el, which is run only once --
164 ;; at dump time. So we have to do contortions to make sure we don't
165 ;; override values set in site-init.el.
166
167 (defun initialize-xemacs-paths ()
168 "Initialize the XEmacs path variables from the environment.
169 Called automatically at dump time and run time. Do not call this.
170 Will not override settings in site-init.el or site-run.el."
171 (let ((l #'(lambda (var value)
172 (let ((origsym (intern (concat "paths-el-original-"
173 (symbol-name var)))))
174 (if (running-temacs-p)
175 (progn
176 (set var value)
177 (set origsym value))
178 (and (eq (symbol-value var) (symbol-value origsym))
179 (set var value)))))))
180 (funcall
181 l 'news-inews-program
182 (cond ((file-exists-p "/usr/bin/inews") "/usr/bin/inews")
183 ((file-exists-p "/usr/local/inews") "/usr/local/inews")
184 ((file-exists-p "/usr/local/bin/inews") "/usr/local/bin/inews")
185 ((file-exists-p "/usr/lib/news/inews") "/usr/lib/news/inews")
186 (t "inews")))
187
188 (funcall
189 l 'mh-progs
190 (cond ((file-directory-p "/usr/bin/mh") "/usr/bin/mh/") ;Ultrix 4.2
191 ((file-directory-p "/usr/new/mh") "/usr/new/mh/") ;Ultrix <4.2
192 ((file-directory-p "/usr/local/bin/mh") "/usr/local/bin/mh/")
193 ((file-directory-p "/usr/local/mh") "/usr/local/mh/")
194 (t "/usr/local/bin/")))
195
196 (funcall
197 l 'mh-libs
198 (cond ((file-directory-p "/usr/lib/mh") "/usr/lib/mh/") ;Ultrix 4.2
199 ((file-directory-p "/usr/new/lib/mh")
200 "/usr/new/lib/mh/") ;Ultrix <4.2
201 ((file-directory-p "/usr/local/lib/mh") "/usr/local/lib/mh/")
202 (t "/usr/local/bin/mh/")))
203
204 (funcall
205 l 'rmail-spool-directory
206 (cond ((string-match "^[^-]+-[^-]+-sco3.2v4" system-configuration)
207 "/usr/spool/mail/")
208 ;; On The Bull DPX/2 /usr/spool/mail is used although
209 ;; it is usg-unix-v.
210 ((string-match "^m68k-bull-sysv3" system-configuration)
211 "/usr/spool/mail/")
212 ;; SVR4 and recent BSD are said to use this.
213 ;; Rather than trying to know precisely which systems use it,
214 ;; let's assume this dir is never used for anything else.
215 ((file-exists-p "/var/mail")
216 "/var/mail/")
217 ((memq system-type '(dgux hpux usg-unix-v unisoft-unix rtu irix))
218 "/usr/mail/")
219 (t "/usr/spool/mail/")))
220
221 (funcall
222 l 'sendmail-program
223 (cond
224 ((file-exists-p "/usr/lib/sendmail") "/usr/lib/sendmail")
225 ((file-exists-p "/usr/sbin/sendmail") "/usr/sbin/sendmail")
226 ((file-exists-p "/usr/ucblib/sendmail") "/usr/ucblib/sendmail")
227 (t "fakemail"))) ;In ../etc, to interface to /bin/mail.
228
229 (funcall
230 l 'remote-shell-program
231 (cond
232 ;; Some systems use rsh for the remote shell; others use that
233 ;; name for the restricted shell and use remsh for the remote
234 ;; shell. Let's try to guess based on what we actually find
235 ;; out there. The restricted shell is almost certainly in
236 ;; /bin or /usr/bin, so it's probably safe to assume that an
237 ;; rsh found elsewhere is the remote shell program. The
238 ;; converse is not true: /usr/bin/rsh could be either one, so
239 ;; check that last.
240 ((file-exists-p "/usr/ucb/remsh") "/usr/ucb/remsh")
241 ((file-exists-p "/usr/bsd/remsh") "/usr/bsd/remsh")
242 ((file-exists-p "/bin/remsh") "/bin/remsh")
243 ((file-exists-p "/usr/bin/remsh") "/usr/bin/remsh")
244 ((file-exists-p "/usr/local/bin/remsh") "/usr/local/bin/remsh")
245 ((file-exists-p "/usr/ucb/rsh") "/usr/ucb/rsh")
246 ((file-exists-p "/usr/bsd/rsh") "/usr/bsd/rsh")
247 ((file-exists-p "/usr/local/bin/rsh") "/usr/local/bin/rsh")
248 ((file-exists-p "/usr/bin/rcmd") "/usr/bin/rcmd")
249 ((file-exists-p "/bin/rcmd") "/bin/rcmd")
250 ((file-exists-p "/bin/rsh") "/bin/rsh")
251 ((file-exists-p "/usr/bin/rsh") "/usr/bin/rsh")
252 (t "rsh")))
253
254 (funcall
255 l 'manual-program
256 ;; Solaris 2 has both of these files; prefer /usr/ucb/man
257 ;; because the other has nonstandard argument conventions.
258 (if (file-exists-p "/usr/ucb/man")
259 "/usr/ucb/man" "/usr/bin/man")))
260 )
261
262 (if (running-temacs-p)
263 (initialize-xemacs-paths))
264
265 ;;; paths.el ends here