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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2008 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.22 2007/07/02 06:19:18 opfer Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.45 2008/09/01 10:45:26 ulm Exp $
4# 4#
5# Copyright 2007 Christian Faulhammer <opfer@gentoo.org>
6# Copyright 2002-2007 Matthew Kennedy <mkennedy@gentoo.org> 5# Copyright 2002-2004 Matthew Kennedy <mkennedy@gentoo.org>
7# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com> 6# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com>
7# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org>
8# Copyright 2007-2008 Christian Faulhammer <opfer@gentoo.org>
8# Copyright 2007 Ulrich Mueller <ulm@gentoo.org> 9# Copyright 2007-2008 Ulrich Müller <ulm@gentoo.org>
9# 10#
10# This is not a real eclass, but it does provide Emacs-related installation 11# @ECLASS: elisp-common.eclass
11# utilities. 12# @MAINTAINER:
12# 13# Feel free to contact the Emacs team through <emacs@gentoo.org> if you have
13# USAGE: 14# problems, suggestions or questions.
15# @BLURB: Emacs-related installation utilities
16# @DESCRIPTION:
14# 17#
15# Usually you want to use this eclass for (optional) GNU Emacs support of 18# Usually you want to use this eclass for (optional) GNU Emacs support of
16# your package. This is NOT for XEmacs! 19# your package. This is NOT for XEmacs!
20#
17# Many of the steps here are sometimes done by the build system of your 21# Many of the steps here are sometimes done by the build system of your
18# package (especially compilation), so this is mainly for standalone elisp 22# package (especially compilation), so this is mainly for standalone elisp
19# files you gathered from somewhere else. 23# files you gathered from somewhere else.
24#
20# When relying on the emacs USE flag, you need to add 25# When relying on the emacs USE flag, you need to add
21# 26#
22# emacs? ( virtual/emacs ) 27# emacs? ( virtual/emacs )
23# 28#
24# to your DEPEND/RDEPEND line and use the functions provided here to bring 29# to your DEPEND/RDEPEND line and use the functions provided here to bring
25# the files to the correct locations. 30# the files to the correct locations.
26# 31#
32# .SS
27# src_compile() usage: 33# src_compile() usage:
28# --------------------
29# 34#
30# An elisp file is compiled by the elisp-compile() function defined here and 35# An elisp file is compiled by the elisp-compile() function defined here and
31# simply takes the source files as arguments. In the case of interdependent 36# simply takes the source files as arguments. The case of interdependent
32# elisp files, you can use the elisp-comp() function which makes sure all 37# elisp files is also supported, since the current directory is added to the
33# files are loadable. 38# load-path which makes sure that all files are loadable.
34# 39#
35# elisp-compile *.el || die "elisp-compile failed!" 40# elisp-compile *.el || die "elisp-compile failed"
36# or
37# elisp-comp *.el || die "elisp-comp failed!"
38# 41#
42# Formerly, function elisp-comp() was used for compilation of interdependent
43# elisp files. This usage is considered as obsolete.
44#
39# Function elisp-make-autoload-file() can be used to generate a file with 45# Function elisp-make-autoload-file() can be used to generate a file with
40# autoload definitions for the lisp functions. It takes the output file name 46# autoload definitions for the lisp functions. It takes the output file name
41# (default: "${PN}-autoloads.el") and a list of directories (default: working 47# (default: "${PN}-autoloads.el") and a list of directories (default: working
42# directory) as its arguments. Use of this function requires that the elisp 48# directory) as its arguments. Use of this function requires that the elisp
43# source files contain magic ";;;###autoload" comments. See the Emacs Lisp 49# source files contain magic ";;;###autoload" comments. See the Emacs Lisp
44# Reference Manual (node "Autoload") for a detailed explanation. 50# Reference Manual (node "Autoload") for a detailed explanation.
45# 51#
52# .SS
46# src_install() usage: 53# src_install() usage:
47# --------------------
48# 54#
49# The resulting compiled files (.elc) should be put in a subdirectory of 55# The resulting compiled files (.elc) should be put in a subdirectory of
50# /usr/share/emacs/site-lisp/ which is named after the first argument 56# /usr/share/emacs/site-lisp/ which is named after the first argument
51# of elisp-install(). The following parameters are the files to be put in 57# of elisp-install(). The following parameters are the files to be put in
52# that directory. Usually the subdirectory should be ${PN}, you can choose 58# that directory. Usually the subdirectory should be ${PN}, you can choose
53# something else, but remember to tell elisp-site-file-install() (see below) 59# something else, but remember to tell elisp-site-file-install() (see below)
54# the change, as it defaults to ${PN}. 60# the change, as it defaults to ${PN}.
55# 61#
56# elisp-install ${PN} *.elc *.el || die "elisp-install failed!" 62# elisp-install ${PN} *.el *.elc || die "elisp-install failed"
57# 63#
58# To let the Emacs support be activated by Emacs on startup, you need 64# To let the Emacs support be activated by Emacs on startup, you need
59# to provide a site file (shipped in ${FILESDIR}) which contains the startup 65# to provide a site file (shipped in ${FILESDIR}) which contains the startup
60# code (have a look in the documentation of your software). Normally this 66# code (have a look in the documentation of your software). Normally this
61# would look like this: 67# would look like this:
62# 68#
63# ;;; csv-mode site-lisp configuration 69# ;;; csv-mode site-lisp configuration
64# 70#
65# (add-to-list 'load-path "@SITELISP@") 71# (add-to-list 'load-path "@SITELISP@")
66# (add-to-list 'auto-mode-alist '("\\.csv\\'" . csv-mode)) 72# (add-to-list 'auto-mode-alist '("\\.csv\\'" . csv-mode))
67# (autoload 'csv-mode "csv-mode" "Major mode for editing csv files." t) 73# (autoload 'csv-mode "csv-mode" "Major mode for csv files." t)
68# 74#
69# If your Emacs support files are installed in a subdirectory of 75# If your Emacs support files are installed in a subdirectory of
70# /usr/share/emacs/site-lisp/ (which is recommended if more than one file is 76# /usr/share/emacs/site-lisp/ (which is recommended), you need to extend
71# installed), you need to extend Emacs' load-path as shown in the first 77# Emacs' load-path as shown in the first non-comment.
72# non-comment. The elisp-site-file-install() function of this eclass will 78# The elisp-site-file-install() function of this eclass will replace
73# replace "@SITELISP@" by the actual path. 79# "@SITELISP@" by the actual path.
80#
74# The next line tells Emacs to load the mode opening a file ending with 81# The next line tells Emacs to load the mode opening a file ending with
75# ".csv" and load functions depending on the context and needed features. 82# ".csv" and load functions depending on the context and needed features.
76# Be careful though. Commands as "load-library" or "require" bloat the 83# Be careful though. Commands as "load-library" or "require" bloat the
77# editor as they are loaded on every startup. When having a lot of Emacs 84# editor as they are loaded on every startup. When having a lot of Emacs
78# support files, users may be annoyed by the start-up time. Also avoid 85# support files, users may be annoyed by the start-up time. Also avoid
79# keybindings as they might interfere with the user's settings. Give a hint 86# keybindings as they might interfere with the user's settings. Give a hint
80# in pkg_postinst(), which should be enough. 87# in pkg_postinst(), which should be enough.
88#
81# The naming scheme for this site file is "[0-9][0-9]*-gentoo.el", where the 89# The naming scheme for this site file is "[0-9][0-9]*-gentoo.el", where the
82# two digits at the beginning define the loading order. So if you depend on 90# two digits at the beginning define the loading order. So if you depend on
83# another Emacs package, your site file's number must be higher! 91# another Emacs package, your site file's number must be higher!
92#
84# Best practice is to define a SITEFILE variable in the global scope of your 93# Best practice is to define a SITEFILE variable in the global scope of your
85# ebuild (right after DEPEND e.g.): 94# ebuild (right after DEPEND e.g.):
86# 95#
87# SITEFILE=50${PN}-gentoo.el 96# SITEFILE=50${PN}-gentoo.el
88# 97#
89# Which is then installed by 98# Which is then installed by
90# 99#
91# elisp-site-file-install "${FILESDIR}/${SITEFILE}" 100# elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die
92# 101#
93# in src_install(). If your subdirectory is not named ${PN}, give the 102# in src_install(). If your subdirectory is not named ${PN}, give the
94# differing name as second argument. 103# differing name as second argument.
95# 104#
105# .SS
96# pkg_postinst() / pkg_postrm() usage: 106# pkg_postinst() / pkg_postrm() usage:
97# ------------------------------------
98# 107#
99# After that you need to recreate the start-up file of Emacs after emerging 108# After that you need to recreate the start-up file of Emacs after emerging
100# and unmerging by using 109# and unmerging by using
101# 110#
102# pkg_postinst() { 111# pkg_postinst() {
103# elisp-site-regen 112# elisp-site-regen
104# } 113# }
105# 114#
106# pkg_postrm() { 115# pkg_postrm() {
107# elisp-site-regen 116# elisp-site-regen
108# } 117# }
109# 118#
110# When having optional Emacs support, you should prepend "use emacs &&" to 119# When having optional Emacs support, you should prepend "use emacs &&" to
111# above calls of elisp-site-regen(). Don't use "has_version virtual/emacs"! 120# above calls of elisp-site-regen(). Don't use "has_version virtual/emacs"!
112# When unmerging the state of the USE flag emacs is taken from the package 121# When unmerging the state of the emacs USE flag is taken from the package
113# database and not from the environment, so it is no problem when you unset 122# database and not from the environment, so it is no problem when you unset
114# USE=emacs between merge und unmerge of a package. 123# USE=emacs between merge and unmerge of a package.
115# 124#
125# .SS
116# Miscellaneous functions: 126# Miscellaneous functions:
117# ------------------------
118# 127#
119# elisp-emacs-version() outputs the version of the currently active Emacs. 128# elisp-emacs-version() outputs the version of the currently active Emacs.
120#
121# As always: Feel free to contact Emacs team through emacs@gentoo.org if you
122# have problems, suggestions or questions.
123 129
130# @ECLASS-VARIABLE: SITELISP
131# @DESCRIPTION:
132# Directory where packages install Emacs Lisp files.
124SITELISP=/usr/share/emacs/site-lisp 133SITELISP=/usr/share/emacs/site-lisp
125 134
135# Directory where packages install miscellaneous (not Lisp) files.
136SITEETC=/usr/share/emacs/etc
137
138# @ECLASS-VARIABLE: SITEFILE
139# @DESCRIPTION:
140# Name of package's site-init file.
141SITEFILE=50${PN}-gentoo.el
142
143# @ECLASS-VARIABLE: EMACS
144# @DESCRIPTION:
145# Path of Emacs executable.
146EMACS=/usr/bin/emacs
147
148# @ECLASS-VARIABLE: EMACSFLAGS
149# @DESCRIPTION:
150# Flags for executing Emacs in batch mode.
151# These work for Emacs versions 18-23, so don't change them.
152EMACSFLAGS="-batch -q --no-site-file"
153
154# @ECLASS-VARIABLE: BYTECOMPFLAGS
155# @DESCRIPTION:
156# Emacs flags used for byte-compilation in elisp-compile().
157BYTECOMPFLAGS="-L ."
158
159# @FUNCTION: elisp-compile
160# @USAGE: <list of elisp files>
161# @DESCRIPTION:
162# Byte-compile Emacs Lisp files.
163#
164# This function uses GNU Emacs to byte-compile all ".el" specified by its
165# arguments. The resulting byte-code (".elc") files are placed in the same
166# directory as their corresponding source file.
167#
168# The current directory is added to the load-path. This will ensure that
169# interdependent Emacs Lisp files are visible between themselves, in case
170# they require or load one another.
171
126elisp-compile() { 172elisp-compile() {
127 einfo "Compiling GNU Emacs Elisp files ..." 173 ebegin "Compiling GNU Emacs Elisp files"
128 /usr/bin/emacs -batch -q --no-site-file -f batch-byte-compile $* 174 ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@"
175 eend $? "batch-byte-compile failed"
129} 176}
177
178# #FUNCTION: elisp-comp
179# #USAGE: <list of elisp files>
180# #DESCRIPTION:
181# Byte-compile interdependent Emacs Lisp files.
182#
183# This function byte-compiles all ".el" files which are part of its
184# arguments, using GNU Emacs, and puts the resulting ".elc" files into the
185# current directory, so disregarding the original directories used in ".el"
186# arguments.
187#
188# This function manages in such a way that all Emacs Lisp files to be
189# compiled are made visible between themselves, in the event they require or
190# load one another.
191
192elisp-comp() {
193 # Copyright 1995 Free Software Foundation, Inc.
194 # François Pinard <pinard@iro.umontreal.ca>, 1995.
195 # Originally taken from GNU autotools.
196
197 [ $# -gt 0 ] || return 1
198
199 ebegin "Compiling GNU Emacs Elisp files"
200
201 local tempdir=elc.$$
202 mkdir ${tempdir}
203 cp "$@" ${tempdir}
204 pushd ${tempdir}
205
206 echo "(add-to-list 'load-path \"../\")" > script
207 ${EMACS} ${EMACSFLAGS} -l script -f batch-byte-compile *.el
208 local ret=$?
209 mv *.elc ..
210
211 popd
212 rm -fr ${tempdir}
213
214 eend ${ret} "batch-byte-compile failed"
215 return ${ret}
216}
217
218# @FUNCTION: elisp-emacs-version
219# @DESCRIPTION:
220# Output version of currently active Emacs.
130 221
131elisp-emacs-version() { 222elisp-emacs-version() {
132 # Output version of currently active Emacs.
133 # The following will work for at least versions 18-22. 223 # The following will work for at least versions 18-23.
134 echo "(princ emacs-version)" >"${T}"/emacs-version.el 224 echo "(princ emacs-version)" >"${T}"/emacs-version.el
135 /usr/bin/emacs -batch -q --no-site-file -l "${T}"/emacs-version.el 225 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el
226 rm -f "${T}"/emacs-version.el
136} 227}
137 228
229# @FUNCTION: elisp-make-autoload-file
230# @USAGE: [output file] [list of directories]
231# @DESCRIPTION:
232# Generate a file with autoload definitions for the lisp functions.
233
138elisp-make-autoload-file () { 234elisp-make-autoload-file() {
139 local f="${1:-${PN}-autoloads.el}" 235 local f="${1:-${PN}-autoloads.el}"
140 shift 236 shift
141 einfo "Generating autoload file for GNU Emacs ..." 237 ebegin "Generating autoload file for GNU Emacs"
142 238
143 sed 's/^FF/\f/' >"${f}" <<-EOF 239 sed 's/^FF/\f/' >"${f}" <<-EOF
144 ;;; ${f##*/} --- autoloads for ${P} 240 ;;; ${f##*/} --- autoloads for ${P}
145 241
146 ;;; Commentary: 242 ;;; Commentary:
155 ;; no-update-autoloads: t 251 ;; no-update-autoloads: t
156 ;; End: 252 ;; End:
157 ;;; ${f##*/} ends here 253 ;;; ${f##*/} ends here
158 EOF 254 EOF
159 255
160 /usr/bin/emacs -batch -q --no-site-file \ 256 ${EMACS} ${EMACSFLAGS} \
161 --eval "(setq make-backup-files nil)" \ 257 --eval "(setq make-backup-files nil)" \
162 --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \ 258 --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \
163 -f batch-update-autoloads "${@-.}" 259 -f batch-update-autoloads "${@-.}"
260
261 eend $? "batch-update-autoloads failed"
164} 262}
263
264# @FUNCTION: elisp-install
265# @USAGE: <subdirectory> <list of files>
266# @DESCRIPTION:
267# Install files in SITELISP directory.
165 268
166elisp-install() { 269elisp-install() {
167 local subdir=$1 270 local subdir="$1"
168 einfo "Installing Elisp files for GNU Emacs support ..."
169 dodir "${SITELISP}/${subdir}"
170 insinto "${SITELISP}/${subdir}"
171 shift 271 shift
272 ebegin "Installing Elisp files for GNU Emacs support"
273 ( # subshell to avoid pollution of calling environment
274 insinto "${SITELISP}/${subdir}"
172 doins $@ 275 doins "$@"
276 )
277 eend $? "doins failed"
173} 278}
279
280# @FUNCTION: elisp-site-file-install
281# @USAGE: <site-init file> [subdirectory]
282# @DESCRIPTION:
283# Install Emacs site-init file in SITELISP directory.
174 284
175elisp-site-file-install() { 285elisp-site-file-install() {
176 local sitefile=$1 my_pn=${2:-${PN}} 286 local sf="${T}/${1##*/}" my_pn="${2:-${PN}}" ret
177 einfo "Installing site initialisation file for GNU Emacs ..." 287 ebegin "Installing site initialisation file for GNU Emacs"
178 pushd "${S}" 288 cp "$1" "${sf}"
179 cp ${sitefile} "${T}" 289 sed -i -e "s:@SITELISP@:${SITELISP}/${my_pn}:g" \
180 sed -i "s:@SITELISP@:${SITELISP}/${my_pn}:g" "${T}/$(basename ${sitefile})" 290 -e "s:@SITEETC@:${SITEETC}/${my_pn}:g" "${sf}"
181 insinto ${SITELISP} 291 ( # subshell to avoid pollution of calling environment
182 doins "${T}/$(basename ${sitefile})" || die "failed to install site file" 292 insinto "${SITELISP}/site-gentoo.d"
183 popd 293 doins "${sf}"
294 )
295 ret=$?
296 rm -f "${sf}"
297 eend ${ret} "doins failed"
184} 298}
299
300# @FUNCTION: elisp-site-regen
301# @DESCRIPTION:
302# Regenerate site-gentoo.el file. The old location for site initialisation
303# files of packages was /usr/share/emacs/site-lisp/. In December 2007 this
304# has been changed to /usr/share/emacs/site-lisp/site-gentoo.d/. Remerge of
305# packages with Emacs support is enough, the old location is still supported
306# when generating the start-up file.
185 307
186elisp-site-regen() { 308elisp-site-regen() {
187 local sflist sf line 309 local i sf line obsolete
310 local -a sflist
311 # Work around Paludis borkage: variable T is empty in pkg_postrm
312 local tmpdir=${T:-$(mktemp -d)}
188 313
314 if [ ! -d "${ROOT}${SITELISP}" ]; then
315 eerror "Directory ${SITELISP} does not exist"
316 return 1
317 fi
318
319 if [ ! -e "${ROOT}${SITELISP}"/site-gentoo.el ] \
320 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ]; then
321 einfo "Creating default ${SITELISP}/site-start.el ..."
322 cat <<-EOF >"${tmpdir}"/site-start.el
323 ;;; site-start.el
324
325 ;;; Commentary:
326 ;; This default site startup file is installed by elisp-common.eclass.
327 ;; You may replace this file by your own site initialisation, or even
328 ;; remove it completely; it will not be recreated.
329
330 ;;; Code:
331 ;; Load site initialisation for Gentoo-installed packages.
332 (require 'site-gentoo)
333
334 ;;; site-start.el ends here
335 EOF
336 fi
337
189 einfo "Regenerating ${SITELISP}/site-gentoo.el ..." 338 einfon "Regenerating ${SITELISP}/site-gentoo.el ..."
190 cat <<EOF >"${T}"/site-gentoo.el
191;;; DO NOT EDIT THIS FILE -- IT IS GENERATED AUTOMATICALLY BY PORTAGE
192;;; -----------------------------------------------------------------
193 339
194EOF 340 # remove any auxiliary file (from previous run)
341 rm -f "${ROOT}${SITELISP}"/00site-gentoo.el
342
343 # set nullglob option, there may be a directory without matching files
344 local old_shopts=$(shopt -p nullglob)
345 shopt -s nullglob
346
195 for sf in "${ROOT}${SITELISP}"/[0-9][0-9]*-gentoo.el 347 for sf in "${ROOT}${SITELISP}"/[0-9][0-9]*-gentoo.el \
348 "${ROOT}${SITELISP}"/site-gentoo.d/[0-9][0-9]*.el
196 do 349 do
197 [ -r "${sf}" ] || continue 350 [ -r "${sf}" ] || continue
198 sflist="${sflist} $(basename "${sf}")" 351 # sort files by their basename. straight insertion sort.
199 cat "${sf}" >>"${T}"/site-gentoo.el 352 for ((i=${#sflist[@]}; i>0; i--)); do
353 [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break
354 sflist[i]=${sflist[i-1]}
355 done
356 sflist[i]=${sf}
357 # set a flag if there are obsolete files
358 [ "${sf%/*}" = "${ROOT}${SITELISP}" ] && obsolete=t
200 done 359 done
201 360
361 eval "${old_shopts}"
362
363 cat <<-EOF >"${tmpdir}"/site-gentoo.el
364 ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages
365
366 ;;; Commentary:
367 ;; Automatically generated by elisp-common.eclass
368 ;; DO NOT EDIT THIS FILE
369
370 ;;; Code:
371 EOF
372 cat "${sflist[@]}" </dev/null >>"${tmpdir}"/site-gentoo.el
373 cat <<-EOF >>"${tmpdir}"/site-gentoo.el
374
375 (provide 'site-gentoo)
376
377 ;; Local Variables:
378 ;; no-byte-compile: t
379 ;; End:
380 ;;; site-gentoo.el ends here
381 EOF
382
202 if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${T}"/site-gentoo.el; then 383 if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${tmpdir}"/site-gentoo.el
384 then
203 # This prevents outputting unnecessary text when there 385 # This prevents outputting unnecessary text when there
204 # was actually no change 386 # was actually no change.
205 # A case is a remerge where we have doubled output 387 # A case is a remerge where we have doubled output.
206 einfo "... no changes" 388 echo " no changes."
207 else 389 else
208 mv -b "${T}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el 390 mv "${tmpdir}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el
209 einfo "" 391 [ -f "${tmpdir}"/site-start.el ] \
392 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ] \
393 && mv "${tmpdir}"/site-start.el "${ROOT}${SITELISP}"/site-start.el
394 echo; einfo
210 for sf in ${sflist}; do 395 for sf in "${sflist[@]##*/}"; do
211 einfo " Adding ${sf} ..." 396 einfo " Adding ${sf} ..."
212 done 397 done
398 einfo "Regenerated ${SITELISP}/site-gentoo.el."
399
400 echo
213 while read line; do einfo "${line}"; done <<EOF 401 while read line; do einfo "${line:- }"; done <<-EOF
214
215All site initialization for Gentoo-installed packages is now added to 402 All site initialisation for Gentoo-installed packages is added to
216/usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is no longer 403 /usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is not
217managed by Gentoo. You are responsible for all maintenance of 404 managed by Gentoo. You are responsible for all maintenance of
218site-start.el if there is such a file. 405 site-start.el if there is such a file.
219 406
220In order for this site initialization to be loaded for all users 407 In order for this site initialisation to be loaded for all users
221automatically, as was done previously, you can add a line like this: 408 automatically, you can add a line like this:
222 409
223 (load "/usr/share/emacs/site-lisp/site-gentoo" nil t) 410 (require 'site-gentoo)
224 411
225to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line 412 to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line
226can be added by individual users to their initialization files, or for 413 can be added by individual users to their initialisation files, or,
227greater flexibility, users can select which of the package-specific 414 for greater flexibility, users can load individual package-specific
228initialization files in /usr/share/emacs/site-lisp to load. 415 initialisation files from /usr/share/emacs/site-lisp/site-gentoo.d/.
229EOF 416 EOF
230 echo 417 echo
231 fi 418 fi
232}
233 419
234# The following Emacs Lisp compilation routine is taken from GNU 420 if [ "${obsolete}" ]; then
235# autotools. 421 while read line; do ewarn "${line}"; done <<-EOF
422 Site-initialisation files of Emacs packages are now installed in
423 /usr/share/emacs/site-lisp/site-gentoo.d/. We strongly recommend
424 that you use /usr/sbin/emacs-updater to rebuild the installed
425 Emacs packages.
426 EOF
427 echo
236 428
237elisp-comp() { 429 # Kludge for backwards compatibility: During pkg_postrm, old versions
238 # Copyright 1995 Free Software Foundation, Inc. 430 # of this eclass (saved in the VDB) won't find packages' site-init
239 # François Pinard <pinard@iro.umontreal.ca>, 1995. 431 # files in the new location. So we copy them to an auxiliary file
240 # This script byte-compiles all `.el' files which are part of its 432 # that is visible to old eclass versions.
241 # arguments, using GNU Emacs, and put the resulting `.elc' files into 433 for sf in "${sflist[@]}"; do
242 # the current directory, so disregarding the original directories used 434 [ "${sf%/*}" = "${ROOT}${SITELISP}/site-gentoo.d" ] \
243 # in `.el' arguments. 435 && cat "${sf}" >>"${ROOT}${SITELISP}"/00site-gentoo.el
244 # 436 done
245 # This script manages in such a way that all Emacs LISP files to
246 # be compiled are made visible between themselves, in the event
247 # they require or load-library one another.
248
249 test $# -gt 0 || return 1
250
251 if test -z "${EMACS}" || test "${EMACS}" = "t"; then
252 # Value of "t" means we are running in a shell under Emacs.
253 # Just assume Emacs is called "emacs".
254 EMACS=/usr/bin/emacs
255 fi 437 fi
256 einfo "Compiling GNU Emacs Elisp files ..."
257 438
258 tempdir=elc.$$ 439 # cleanup
259 mkdir ${tempdir} 440 rm -f "${tmpdir}"/site-{gentoo,start}.el
260 cp $* ${tempdir}
261 pushd ${tempdir}
262 441
263 echo "(add-to-list 'load-path \"../\")" > script 442 return 0
264 ${EMACS} -batch -q --no-site-file --no-init-file -l script \
265 -f batch-byte-compile *.el
266 local status=$?
267 mv *.elc ..
268
269 popd
270 rm -fr ${tempdir}
271 return ${status}
272} 443}

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