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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 1.16 2007/04/16 15:41:02 opfer Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.52 2008/11/24 14:21:04 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
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
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.
81# The naming scheme for this site file is "[0-9][0-9]*-gentoo.el", where the 88#
82# two digits at the beginning define the loading order. So if you depend on 89# The naming scheme for this site-init file matches the shell pattern
90# "[1-8][0-9]*-gentoo.el", where the two digits at the beginning define the
91# loading order (numbers below 10 or above 89 are reserved for internal use).
83# another Emacs package, your site file's number must be higher! 92# So if you depend on another Emacs package, your site file's number must be
93# higher!
94#
84# Best practice is to define a SITEFILE variable in the global scope of your 95# Best practice is to define a SITEFILE variable in the global scope of your
85# ebuild (right after DEPEND e.g.): 96# ebuild (e.g., right after DEPEND):
86# 97#
87# SITEFILE=50${PN}-gentoo.el 98# SITEFILE=50${PN}-gentoo.el
88# 99#
89# Which is then installed by 100# Which is then installed by
90# 101#
91# elisp-site-file-install "${FILESDIR}/${SITEFILE}" 102# elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die
92# 103#
93# in src_install(). If your subdirectory is not named ${PN}, give the 104# in src_install(). If your subdirectory is not named ${PN}, give the
94# differing name as second argument. 105# differing name as second argument.
95# 106#
107# .SS
96# pkg_postinst() / pkg_postrm() usage: 108# pkg_postinst() / pkg_postrm() usage:
97# ------------------------------------
98# 109#
99# After that you need to recreate the start-up file of Emacs after emerging 110# After that you need to recreate the start-up file of Emacs after emerging
100# and unmerging by using 111# and unmerging by using
101# 112#
102# pkg_postinst() { 113# pkg_postinst() {
103# elisp-site-regen 114# elisp-site-regen
104# } 115# }
116#
105# pkg_postrm() { 117# pkg_postrm() {
106# elisp-site-regen 118# elisp-site-regen
107# } 119# }
108# 120#
109# As always: Feel free to contact Emacs team through emacs@gentoo.org if you 121# When having optional Emacs support, you should prepend "use emacs &&" to
110# have problems, suggestions or questions. 122# above calls of elisp-site-regen(). Don't use "has_version virtual/emacs"!
123# When unmerging the state of the emacs USE flag is taken from the package
124# database and not from the environment, so it is no problem when you unset
125# USE=emacs between merge and unmerge of a package.
126#
127# .SS
128# Miscellaneous functions:
129#
130# elisp-emacs-version() outputs the version of the currently active Emacs.
111 131
132# @ECLASS-VARIABLE: SITELISP
133# @DESCRIPTION:
134# Directory where packages install Emacs Lisp files.
112SITELISP=/usr/share/emacs/site-lisp 135SITELISP=/usr/share/emacs/site-lisp
113 136
137# @ECLASS-VARIABLE: SITEETC
138# @DESCRIPTION:
139# Directory where packages install miscellaneous (not Lisp) files.
140SITEETC=/usr/share/emacs/etc
141
142# @ECLASS-VARIABLE: EMACS
143# @DESCRIPTION:
144# Path of Emacs executable.
145EMACS=/usr/bin/emacs
146
147# @ECLASS-VARIABLE: EMACSFLAGS
148# @DESCRIPTION:
149# Flags for executing Emacs in batch mode.
150# These work for Emacs versions 18-23, so don't change them.
151EMACSFLAGS="-batch -q --no-site-file"
152
153# @ECLASS-VARIABLE: BYTECOMPFLAGS
154# @DESCRIPTION:
155# Emacs flags used for byte-compilation in elisp-compile().
156BYTECOMPFLAGS="-L ."
157
158# @FUNCTION: elisp-compile
159# @USAGE: <list of elisp files>
160# @DESCRIPTION:
161# Byte-compile Emacs Lisp files.
162#
163# This function uses GNU Emacs to byte-compile all ".el" specified by its
164# arguments. The resulting byte-code (".elc") files are placed in the same
165# directory as their corresponding source file.
166#
167# The current directory is added to the load-path. This will ensure that
168# interdependent Emacs Lisp files are visible between themselves, in case
169# they require or load one another.
170
114elisp-compile() { 171elisp-compile() {
115 /usr/bin/emacs --batch -f batch-byte-compile --no-site-file --no-init-file $* 172 ebegin "Compiling GNU Emacs Elisp files"
173 ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@"
174 eend $? "elisp-compile: batch-byte-compile failed"
116} 175}
117 176
177# #FUNCTION: elisp-comp
178# #USAGE: <list of elisp files>
179# #DESCRIPTION:
180# Byte-compile interdependent Emacs Lisp files.
181# THIS FUNCTION IS DEPRECATED.
182#
183# This function byte-compiles all ".el" files which are part of its
184# arguments, using GNU Emacs, and puts the resulting ".elc" files into the
185# current directory, so disregarding the original directories used in ".el"
186# arguments.
187#
188# This function manages in such a way that all Emacs Lisp files to be
189# compiled are made visible between themselves, in the event they require or
190# load one another.
191
192elisp-comp() {
193 # Copyright 1995 Free Software Foundation, Inc.
194 # François Pinard <pinard@iro.umontreal.ca>, 1995.
195 # Originally taken from GNU autotools.
196
197 ewarn "Function elisp-comp is deprecated and may be removed in future."
198 ewarn "Please use function elisp-compile instead, or report a bug about"
199 ewarn "${CATEGORY}/${PF} at <http://bugs.gentoo.org/>."
200 echo
201
202 [ $# -gt 0 ] || return 1
203
204 ebegin "Compiling GNU Emacs Elisp files"
205
206 local tempdir=elc.$$
207 mkdir ${tempdir}
208 cp "$@" ${tempdir}
209 pushd ${tempdir}
210
211 echo "(add-to-list 'load-path \"../\")" > script
212 ${EMACS} ${EMACSFLAGS} -l script -f batch-byte-compile *.el
213 local ret=$?
214 mv *.elc ..
215
216 popd
217 rm -fr ${tempdir}
218
219 eend ${ret} "elisp-comp: batch-byte-compile failed"
220}
221
222# @FUNCTION: elisp-emacs-version
223# @DESCRIPTION:
224# Output version of currently active Emacs.
225
226elisp-emacs-version() {
227 # The following will work for at least versions 18-23.
228 echo "(princ emacs-version)" >"${T}"/emacs-version.el
229 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el
230 rm -f "${T}"/emacs-version.el
231}
232
233# @FUNCTION: elisp-make-autoload-file
234# @USAGE: [output file] [list of directories]
235# @DESCRIPTION:
236# Generate a file with autoload definitions for the lisp functions.
237
118elisp-make-autoload-file () { 238elisp-make-autoload-file() {
119 local f="${1-${PN}-autoloads.el}" 239 local f="${1:-${PN}-autoloads.el}"
120 shift 240 shift
121 echo >"${f}" 241 ebegin "Generating autoload file for GNU Emacs"
122 emacs --batch -q --no-site-file \ 242
243 sed 's/^FF/\f/' >"${f}" <<-EOF
244 ;;; ${f##*/} --- autoloads for ${P}
245
246 ;;; Commentary:
247 ;; Automatically generated by elisp-common.eclass
248 ;; DO NOT EDIT THIS FILE
249
250 ;;; Code:
251 FF
252 ;; Local Variables:
253 ;; version-control: never
254 ;; no-byte-compile: t
255 ;; no-update-autoloads: t
256 ;; End:
257 ;;; ${f##*/} ends here
258 EOF
259
260 ${EMACS} ${EMACSFLAGS} \
123 --eval "(setq make-backup-files nil)" \ 261 --eval "(setq make-backup-files nil)" \
124 --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \ 262 --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \
125 -f batch-update-autoloads "${@-.}" 263 -f batch-update-autoloads "${@-.}"
264
265 eend $? "elisp-make-autoload-file: batch-update-autoloads failed"
126} 266}
267
268# @FUNCTION: elisp-install
269# @USAGE: <subdirectory> <list of files>
270# @DESCRIPTION:
271# Install files in SITELISP directory.
127 272
128elisp-install() { 273elisp-install() {
129 local subdir=$1 274 local subdir="$1"
130 dodir "${SITELISP}/${subdir}"
131 insinto "${SITELISP}/${subdir}"
132 shift 275 shift
276 ebegin "Installing Elisp files for GNU Emacs support"
277 ( # subshell to avoid pollution of calling environment
278 insinto "${SITELISP}/${subdir}"
133 doins $@ 279 doins "$@"
280 )
281 eend $? "elisp-install: doins failed"
134} 282}
283
284# @FUNCTION: elisp-site-file-install
285# @USAGE: <site-init file> [subdirectory]
286# @DESCRIPTION:
287# Install Emacs site-init file in SITELISP directory.
135 288
136elisp-site-file-install() { 289elisp-site-file-install() {
137 local sitefile=$1 my_pn=${2:-${PN}} 290 local sf="${T}/${1##*/}" my_pn="${2:-${PN}}" ret
138 pushd "${S}" 291 ebegin "Installing site initialisation file for GNU Emacs"
139 cp ${sitefile} "${T}" 292 cp "$1" "${sf}"
140 sed -i "s:@SITELISP@:${SITELISP}/${my_pn}:g" "${T}/$(basename ${sitefile})" 293 sed -i -e "s:@SITELISP@:${SITELISP}/${my_pn}:g" \
141 insinto ${SITELISP} 294 -e "s:@SITEETC@:${SITEETC}/${my_pn}:g;\$q" "${sf}"
142 doins "${T}/$(basename ${sitefile})" || die "failed to install site file" 295 ( # subshell to avoid pollution of calling environment
143 popd 296 insinto "${SITELISP}/site-gentoo.d"
297 doins "${sf}"
298 )
299 ret=$?
300 rm -f "${sf}"
301 eend ${ret} "elisp-site-file-install: doins failed"
144} 302}
303
304# @FUNCTION: elisp-site-regen
305# @DESCRIPTION:
306# Regenerate the site-gentoo.el file, based on packages' site initialisation
307# files in the /usr/share/emacs/site-lisp/site-gentoo.d/ directory.
308#
309# Note: Before December 2007, site initialisation files were installed in
310# /usr/share/emacs/site-lisp/. For backwards compatibility, this location is
311# still supported when generating site-gentoo.el.
145 312
146elisp-site-regen() { 313elisp-site-regen() {
314 local i sf line firstrun obsolete
315 local -a sflist
316 # Work around Paludis borkage: variable T is empty in pkg_postrm
317 local tmpdir=${T:-$(mktemp -d)}
318
319 if [ ! -d "${ROOT}${SITELISP}" ]; then
320 eerror "elisp-site-regen: Directory ${SITELISP} does not exist"
321 return 1
322 fi
323
324 [ -e "${ROOT}${SITELISP}"/site-gentoo.el ] || firstrun=t
325
326 if [ "${firstrun}" ] && [ ! -e "${ROOT}${SITELISP}"/site-start.el ]; then
327 einfo "Creating default ${SITELISP}/site-start.el ..."
328 cat <<-EOF >"${tmpdir}"/site-start.el
329 ;;; site-start.el
330
331 ;;; Commentary:
332 ;; This default site startup file is installed by elisp-common.eclass.
333 ;; You may replace this file by your own site initialisation, or even
334 ;; remove it completely; it will not be recreated.
335
336 ;;; Code:
337 ;; Load site initialisation for Gentoo-installed packages.
338 (require 'site-gentoo)
339
340 ;;; site-start.el ends here
341 EOF
342 fi
343
147 einfo "Regenerating ${SITELISP}/site-gentoo.el ..." 344 einfon "Regenerating ${SITELISP}/site-gentoo.el ..."
148 einfo "" 345
346 # remove any auxiliary file (from previous run)
149 cat <<EOF >${ROOT}${SITELISP}/site-gentoo.el 347 rm -f "${ROOT}${SITELISP}"/00site-gentoo.el
150;;; DO NOT EDIT THIS FILE -- IT IS GENERATED AUTOMATICALLY BY PORTAGE
151;;; -----------------------------------------------------------------
152 348
153EOF 349 # set nullglob option, there may be a directory without matching files
350 local old_shopts=$(shopt -p nullglob)
351 shopt -s nullglob
352
154 ls ${ROOT}${SITELISP}/[0-9][0-9]*-gentoo.el | sort -n | \ 353 for sf in "${ROOT}${SITELISP}"/[0-9][0-9]*-gentoo.el \
155 while read sf 354 "${ROOT}${SITELISP}"/site-gentoo.d/[0-9][0-9]*.el
156 do 355 do
157 einfo " Adding $(basename $sf) ..." 356 [ -r "${sf}" ] || continue
158 # Great for debugging, too noisy and slow for users though 357 # sort files by their basename. straight insertion sort.
159# echo "(message \"Loading $sf ...\")" >>${ROOT}${SITELISP}/site-start.el 358 for ((i=${#sflist[@]}; i>0; i--)); do
160 cat $sf >>${ROOT}${SITELISP}/site-gentoo.el 359 [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break
360 sflist[i]=${sflist[i-1]}
361 done
362 sflist[i]=${sf}
363 # set a flag if there are obsolete files
364 [ "${sf%/*}" = "${ROOT}${SITELISP}" ] && obsolete=t
161 done 365 done
162 while read line; do einfo "${line}"; done <<EOF
163 366
164All site initialization for Gentoo-installed packages is now added to 367 eval "${old_shopts}"
165/usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is no longer
166managed by Gentoo. You are responsible for all maintenance of
167site-start.el if there is such a file.
168 368
169In order for this site initialization to be loaded for all users 369 cat <<-EOF >"${tmpdir}"/site-gentoo.el
170automatically, as was done previously, you can add a line like this: 370 ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages
171 371
172 (load "/usr/share/emacs/site-lisp/site-gentoo") 372 ;;; Commentary:
373 ;; Automatically generated by elisp-common.eclass
374 ;; DO NOT EDIT THIS FILE
173 375
174to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line 376 ;;; Code:
175can be added by individual users to their initialization files, or for
176greater flexibility, users can select which of the package-specific
177initialization files in /usr/share/emacs/site-lisp to load.
178EOF 377 EOF
179 echo 378 # Use sed instead of cat here, since files may miss a trailing newline.
180} 379 sed '$q' "${sflist[@]}" </dev/null >>"${tmpdir}"/site-gentoo.el
380 cat <<-EOF >>"${tmpdir}"/site-gentoo.el
181 381
182# The following Emacs Lisp compilation routine is taken from GNU 382 (provide 'site-gentoo)
183# autotools.
184 383
185elisp-comp() { 384 ;; Local Variables:
186# Copyright 1995 Free Software Foundation, Inc. 385 ;; no-byte-compile: t
187# François Pinard <pinard@iro.umontreal.ca>, 1995. 386 ;; End:
188# This script byte-compiles all `.el' files which are part of its 387 ;;; site-gentoo.el ends here
189# arguments, using GNU Emacs, and put the resulting `.elc' files into 388 EOF
190# the current directory, so disregarding the original directories used
191# in `.el' arguments.
192#
193# This script manages in such a way that all Emacs LISP files to
194# be compiled are made visible between themselves, in the event
195# they require or load-library one another.
196 389
197 if test $# = 0; then 390 if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${tmpdir}"/site-gentoo.el
198 exit 1 391 then
392 # This prevents outputting unnecessary text when there
393 # was actually no change.
394 # A case is a remerge where we have doubled output.
395 echo " no changes."
199 else 396 else
200 if test -z "${EMACS}" || test "${EMACS}" = "t"; then 397 mv "${tmpdir}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el
201 # Value of "t" means we are running in a shell under Emacs. 398 [ -f "${tmpdir}"/site-start.el ] \
202 # Just assume Emacs is called "emacs". 399 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ] \
203 EMACS=emacs 400 && mv "${tmpdir}"/site-start.el "${ROOT}${SITELISP}"/site-start.el
204 fi 401 echo
205 402 einfo "... ${#sflist[@]} site initialisation file(s) included."
206 tempdir=elc.$$
207 mkdir ${tempdir}
208 cp $* ${tempdir}
209 cd ${tempdir}
210
211 echo "(add-to-list 'load-path \"../\")" > script
212 ${EMACS} -batch -q --no-site-file --no-init-file -l script -f batch-byte-compile *.el
213 mv *.elc ..
214
215 cd ..
216 rm -fr ${tempdir}
217 fi 403 fi
404
405 if [ "${firstrun}" ]; then
406 echo
407 while read line; do einfo "${line:- }"; done <<-EOF
408 All site initialisation for Gentoo-installed packages is added to
409 /usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is not
410 managed by Gentoo. You are responsible for all maintenance of
411 site-start.el if there is such a file.
412
413 In order for this site initialisation to be loaded for all users
414 automatically, you can add a line like this:
415
416 (require 'site-gentoo)
417
418 to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line
419 can be added by individual users to their initialisation files, or,
420 for greater flexibility, users can load individual package-specific
421 initialisation files from /usr/share/emacs/site-lisp/site-gentoo.d/.
422 EOF
423 echo
424 fi
425
426 if [ "${obsolete}" ]; then
427 echo
428 while read line; do ewarn "${line}"; done <<-EOF
429 Site-initialisation files of Emacs packages are now installed in
430 /usr/share/emacs/site-lisp/site-gentoo.d/. We strongly recommend
431 that you use app-admin/emacs-updater to rebuild the installed
432 Emacs packages.
433 EOF
434
435 # Kludge for backwards compatibility: During pkg_postrm, old versions
436 # of this eclass (saved in the VDB) won't find packages' site-init
437 # files in the new location. So we copy them to an auxiliary file
438 # that is visible to old eclass versions.
439 for sf in "${sflist[@]}"; do
440 [ "${sf%/*}" = "${ROOT}${SITELISP}/site-gentoo.d" ] \
441 && cat "${sf}" >>"${ROOT}${SITELISP}"/00site-gentoo.el
442 done
443 fi
444
445 # cleanup
446 rm -f "${tmpdir}"/site-{gentoo,start}.el
447
448 return 0
218} 449}

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