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diff --git a/lib-src/rcs2log b/lib-src/rcs2log
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+#! /bin/sh
+
+# RCS to ChangeLog generator
+
+# Generate a change log prefix from RCS files (perhaps in the CVS repository)
+# and the ChangeLog (if any).
+# Output the new prefix to standard output.
+# You can edit this prefix by hand, and then prepend it to ChangeLog.
+
+# Ignore log entries that start with `#'.
+# Clump together log entries that start with `{topic} ',
+# where `topic' contains neither white space nor `}'.
+
+Help='The default FILEs are the files registered under the working directory.
+Options:
+
+  -c CHANGELOG  Output a change log prefix to CHANGELOG (default ChangeLog).
+  -h HOSTNAME  Use HOSTNAME in change log entries (default current host).
+  -i INDENT  Indent change log lines by INDENT spaces (default 8).
+  -l LENGTH  Try to limit log lines to LENGTH characters (default 79).
+  -R  If no FILEs are given and RCS is used, recurse through working directory.
+  -r OPTION  Pass OPTION to subsidiary log command.
+  -t TABWIDTH  Tab stops are every TABWIDTH characters (default 8).
+  -u "LOGIN<tab>FULLNAME<tab>MAILADDR"  Assume LOGIN has FULLNAME and MAILADDR.
+  -v  Append RCS revision to file names in log lines.
+  --help  Output help.
+  --version  Output version number.
+
+Report bugs to <bug-gnu-emacs@gnu.org>.'
+
+Id='$Id: rcs2log,v 1.46 2001/01/03 12:04:06 gerd Exp $'
+
+# Copyright 1992, 93, 94, 95, 96, 97, 1998, 2001
+#  Free Software Foundation, Inc.
+
+# This program 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.
+#
+# This program 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 this program; see the file COPYING.  If not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+Copyright='Copyright 1998 Free Software Foundation, Inc.
+This program comes with NO WARRANTY, to the extent permitted by law.
+You may redistribute copies of this program
+under the terms of the GNU General Public License.
+For more information about these matters, see the files named COPYING.
+Author: Paul Eggert <eggert@twinsun.com>'
+
+tab='	'
+nl='
+'
+
+# Parse options.
+
+# defaults
+: ${AWK=awk}
+: ${TMPDIR=/tmp}
+changelog=ChangeLog # change log file name
+datearg= # rlog date option
+hostname= # name of local host (if empty, will deduce it later)
+indent=8 # indent of log line
+length=79 # suggested max width of log line
+logins= # login names for people we know fullnames and mailaddrs of
+loginFullnameMailaddrs= # login<tab>fullname<tab>mailaddr triplets
+logTZ= # time zone for log dates (if empty, use local time)
+recursive= # t if we want recursive rlog
+revision= # t if we want revision numbers
+rlog_options= # options to pass to rlog
+tabwidth=8 # width of horizontal tab
+
+while :
+do
+	case $1 in
+	-c)	changelog=${2?}; shift;;
+	-i)	indent=${2?}; shift;;
+	-h)	hostname=${2?}; shift;;
+	-l)	length=${2?}; shift;;
+	-[nu])	# -n is obsolescent; it is replaced by -u.
+		case $1 in
+		-n)	case ${2?}${3?}${4?} in
+			*"$tab"* | *"$nl"*)
+				echo >&2 "$0: -n '$2' '$3' '$4': tabs, newlines not allowed"
+				exit 1
+			esac
+			case $loginFullnameMailaddrs in
+			'') loginFullnameMailaddrs=$2$tab$3$tab$4;;
+			?*) loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2$tab$3$tab$4
+			esac
+			shift; shift; shift;;
+		-u)
+			# If $2 is not tab-separated, use colon for separator.
+			case ${2?} in
+			*"$nl"*)
+				echo >&2 "$0: -u '$2': newlines not allowed"
+				exit 1;;
+			*"$tab"*)
+				t=$tab;;
+			*)
+				t=:
+			esac
+			case $2 in
+			*"$t"*"$t"*"$t"*)
+				echo >&2 "$0: -u '$2': too many fields"
+				exit 1;;
+			*"$t"*"$t"*)
+				;;
+			*)
+				echo >&2 "$0: -u '$2': not enough fields"
+				exit 1
+			esac
+			case $loginFullnameMailaddrs in
+			'') loginFullnameMailaddrs=$2;;
+			?*) loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2
+			esac
+			shift
+		esac
+		case $logins in
+		'') logins=$login;;
+		?*) logins=$logins$nl$login
+		esac
+		;;
+	-r)
+		case $rlog_options in
+		'') rlog_options=${2?};;
+		?*) rlog_options=$rlog_options$nl${2?}
+		esac
+		shift;;
+	-R)	recursive=t;;
+	-t)	tabwidth=${2?}; shift;;
+	-v)	revision=t;;
+	--version)
+		set $Id
+		rcs2logVersion=$3
+		echo >&2 "rcs2log (GNU Emacs) $rcs2logVersion$nl$Copyright"
+		exit 0;;
+	-*)	echo >&2 "Usage: $0 [OPTION]... [FILE ...]$nl$Help"
+		case $1 in
+		--help) exit 0;;
+		*) exit 1
+		esac;;
+	*)	break
+	esac
+	shift
+done
+
+month_data='
+	m[0]="Jan"; m[1]="Feb"; m[2]="Mar"
+	m[3]="Apr"; m[4]="May"; m[5]="Jun"
+	m[6]="Jul"; m[7]="Aug"; m[8]="Sep"
+	m[9]="Oct"; m[10]="Nov"; m[11]="Dec"
+'
+
+
+# Put rlog output into $rlogout.
+
+# If no rlog options are given,
+# log the revisions checked in since the first ChangeLog entry.
+# Since ChangeLog is only by date, some of these revisions may be duplicates of
+# what's already in ChangeLog; it's the user's responsibility to remove them.
+case $rlog_options in
+'')
+	if test -s "$changelog"
+	then
+		e='
+			/^[0-9]+-[0-9][0-9]-[0-9][0-9]/{
+				# ISO 8601 date
+				print $1
+				exit
+			}
+			/^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
+				# old-fashioned date and time (Emacs 19.31 and earlier)
+				'"$month_data"'
+				year = $5
+				for (i=0; i<=11; i++) if (m[i] == $2) break
+				dd = $3
+				printf "%d-%02d-%02d\n", year, i+1, dd
+				exit
+			}
+		'
+		d=`$AWK "$e" <"$changelog"` || exit
+		case $d in
+		?*) datearg="-d>$d"
+		esac
+	fi
+esac
+
+# Use TZ specified by ChangeLog local variable, if any.
+if test -s "$changelog"
+then
+	extractTZ='
+		/^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*"\([^"]*\)".*/{
+			s//\1/; p; q
+		}
+		/^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*t.*/{
+			s//UTC0/; p; q
+		}
+	'
+	logTZ=`tail "$changelog" | sed -n "$extractTZ"`
+	case $logTZ in
+	?*) TZ=$logTZ; export TZ
+	esac
+fi
+
+# If CVS is in use, examine its repository, not the normal RCS files.
+if test ! -f CVS/Repository
+then
+	rlog=rlog
+	repository=
+else
+	rlog='cvs -q log'
+	repository=`sed 1q <CVS/Repository` || exit
+	test ! -f CVS/Root || CVSROOT=`cat <CVS/Root` || exit
+	case $CVSROOT in
+	*:/*)
+		# remote repository
+		;;
+	*)
+		# local repository
+		case $repository in
+		/*) ;;
+		*) repository=${CVSROOT?}/$repository
+		esac
+		if test ! -d "$repository"
+		then
+			echo >&2 "$0: $repository: bad repository (see CVS/Repository)"
+			exit 1
+		fi
+	esac
+fi
+
+# Use $rlog's -zLT option, if $rlog supports it.
+case `$rlog -zLT 2>&1` in
+*' option'*) ;;
+*)
+	case $rlog_options in
+	'') rlog_options=-zLT;;
+	?*) rlog_options=-zLT$nl$rlog_options
+	esac
+esac
+
+# With no arguments, examine all files under the RCS directory.
+case $# in
+0)
+	case $repository in
+	'')
+		oldIFS=$IFS
+		IFS=$nl
+		case $recursive in
+		t)
+			RCSdirs=`find . -name RCS -type d -print`
+			filesFromRCSfiles='s|,v$||; s|/RCS/|/|; s|^\./||'
+			files=`
+				{
+					case $RCSdirs in
+					?*) find $RCSdirs \
+							-type f \
+							! -name '*_' \
+							! -name ',*,' \
+							! -name '.*_' \
+							! -name .rcsfreeze.log \
+							! -name .rcsfreeze.ver \
+							-print
+					esac
+					find . -name '*,v' -print
+				} |
+				sort -u |
+				sed "$filesFromRCSfiles"
+			`;;
+		*)
+			files=
+			for file in RCS/.* RCS/* .*,v *,v
+			do
+				case $file in
+				RCS/. | RCS/.. | RCS/,*, | RCS/*_) continue;;
+				RCS/.rcsfreeze.log | RCS/.rcsfreeze.ver) continue;;
+				RCS/.\* | RCS/\* | .\*,v | \*,v) test -f "$file" || continue;;
+				RCS/*,v | RCS/.*,v) ;;
+				RCS/* | RCS/.*) test -f "$file" || continue
+				esac
+				case $files in
+				'') files=$file;;
+				?*) files=$files$nl$file
+				esac
+			done
+			case $files in
+			'') exit 0
+			esac
+		esac
+		set x $files
+		shift
+		IFS=$oldIFS
+	esac
+esac
+
+logdir=$TMPDIR/rcs2log$$
+llogout=$logdir/l
+rlogout=$logdir/r
+trap exit 1 2 13 15
+trap "rm -fr $logdir 2>/dev/null" 0
+(umask 077 && exec mkdir $logdir) || exit
+
+case $datearg in
+?*) $rlog $rlog_options "$datearg" ${1+"$@"} >$rlogout;;
+'') $rlog $rlog_options ${1+"$@"} >$rlogout
+esac || exit
+
+
+# Get the full name of each author the logs mention, and set initialize_fullname
+# to awk code that initializes the `fullname' awk associative array.
+# Warning: foreign authors (i.e. not known in the passwd file) are mishandled;
+# you have to fix the resulting output by hand.
+
+initialize_fullname=
+initialize_mailaddr=
+
+case $loginFullnameMailaddrs in
+?*)
+	case $loginFullnameMailaddrs in
+	*\"* | *\\*)
+		sed 's/["\\]/\\&/g' >$llogout <<EOF || exit
+$loginFullnameMailaddrs
+EOF
+		loginFullnameMailaddrs=`cat $llogout`
+	esac
+
+	oldIFS=$IFS
+	IFS=$nl
+	for loginFullnameMailaddr in $loginFullnameMailaddrs
+	do
+		case $loginFullnameMailaddr in
+		*"$tab"*) IFS=$tab;;
+		*) IFS=:
+		esac
+		set x $loginFullnameMailaddr
+		login=$2
+		fullname=$3
+		mailaddr=$4
+		initialize_fullname="$initialize_fullname
+			fullname[\"$login\"] = \"$fullname\""
+		initialize_mailaddr="$initialize_mailaddr
+			mailaddr[\"$login\"] = \"$mailaddr\""
+	done
+	IFS=$oldIFS
+esac
+
+case $llogout in
+?*) sort -u -o $llogout <<EOF || exit
+$logins
+EOF
+esac
+output_authors='/^date: / {
+	if ($2 ~ /^[0-9]*[-\/][0-9][0-9][-\/][0-9][0-9]$/ && $3 ~ /^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][-+0-9:]*;$/ && $4 == "author:" && $5 ~ /^[^;]*;$/) {
+		print substr($5, 1, length($5)-1)
+	}
+}'
+authors=`
+	$AWK "$output_authors" <$rlogout |
+	case $llogout in
+	'') sort -u;;
+	?*) sort -u | comm -23 - $llogout
+	esac
+`
+case $authors in
+?*)
+	cat >$llogout <<EOF || exit
+$authors
+EOF
+	initialize_author_script='s/["\\]/\\&/g; s/.*/author[\"&\"] = 1/'
+	initialize_author=`sed -e "$initialize_author_script" <$llogout`
+	awkscript='
+		BEGIN {
+			alphabet = "abcdefghijklmnopqrstuvwxyz"
+			ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+			'"$initialize_author"'
+		}
+		{
+			if (author[$1]) {
+				fullname = $5
+				if (fullname ~ /[0-9]+-[^(]*\([0-9]+\)$/) {
+					# Remove the junk from fullnames like "0000-Admin(0000)".
+					fullname = substr(fullname, index(fullname, "-") + 1)
+					fullname = substr(fullname, 1, index(fullname, "(") - 1)
+				}
+				if (fullname ~ /,[^ ]/) {
+					# Some sites put comma-separated junk after the fullname.
+					# Remove it, but leave "Bill Gates, Jr" alone.
+					fullname = substr(fullname, 1, index(fullname, ",") - 1)
+				}
+				abbr = index(fullname, "&")
+				if (abbr) {
+					a = substr($1, 1, 1)
+					A = a
+					i = index(alphabet, a)
+					if (i) A = substr(ALPHABET, i, 1)
+					fullname = substr(fullname, 1, abbr-1) A substr($1, 2) substr(fullname, abbr+1)
+				}
+
+				# Quote quotes and backslashes properly in full names.
+				# Do not use gsub; traditional awk lacks it.
+				quoted = ""
+				rest = fullname
+				for (;;) {
+					p = index(rest, "\\")
+					q = index(rest, "\"")
+					if (p) {
+						if (q && q<p) p = q
+					} else {
+						if (!q) break
+						p = q
+					}
+					quoted = quoted substr(rest, 1, p-1) "\\" substr(rest, p, 1)
+					rest = substr(rest, p+1)
+				}
+
+				printf "fullname[\"%s\"] = \"%s%s\"\n", $1, quoted, rest
+				author[$1] = 0
+			}
+		}
+	'
+
+	initialize_fullname=`
+		{
+			(getent passwd $authors) ||
+			(
+				cat /etc/passwd
+				for author in $authors
+				do NIS_PATH= nismatch $author passwd.org_dir
+				done
+				ypmatch $authors passwd
+			)
+		} 2>/dev/null |
+		$AWK -F: "$awkscript"
+	`$initialize_fullname
+esac
+
+
+# Function to print a single log line.
+# We don't use awk functions, to stay compatible with old awk versions.
+# `Log' is the log message (with \n replaced by \001).
+# `files' contains the affected files.
+printlogline='{
+
+	# Following the GNU coding standards, rewrite
+	#	* file: (function): comment
+	# to
+	#	* file (function): comment
+	if (Log ~ /^\([^)]*\): /) {
+		i = index(Log, ")")
+		files = files " " substr(Log, 1, i)
+		Log = substr(Log, i+3)
+	}
+
+	# If "label: comment" is too long, break the line after the ":".
+	sep = " "
+	if ('"$length"' <= '"$indent"' + 1 + length(files) + index(Log, SOH)) sep = "\n" indent_string
+
+	# Print the label.
+	printf "%s*%s:", indent_string, files
+
+	# Print each line of the log, transliterating \001 to \n.
+	while ((i = index(Log, SOH)) != 0) {
+		logline = substr(Log, 1, i-1)
+		if (logline ~ /[^'"$tab"' ]/) {
+			printf "%s%s\n", sep, logline
+		} else {
+			print ""
+		}
+		sep = indent_string
+		Log = substr(Log, i+1)
+	}
+}'
+
+# Pattern to match the `revision' line of rlog output.
+rlog_revision_pattern='^revision [0-9]+\.[0-9]+(\.[0-9]+\.[0-9]+)*(['"$tab"' ]+locked by: [^'"$tab"' $,.0-9:;@]*[^'"$tab"' $,:;@][^'"$tab"' $,.0-9:;@]*;)?['"$tab"' ]*$'
+
+case $hostname in
+'')
+	hostname=`(
+		hostname || uname -n || uuname -l || cat /etc/whoami
+	) 2>/dev/null` || {
+		echo >&2 "$0: cannot deduce hostname"
+		exit 1
+	}
+
+	case $hostname in
+	*.*) ;;
+	*)
+		domainname=`(domainname) 2>/dev/null` &&
+		case $domainname in
+		*.*) hostname=$hostname.$domainname
+		esac
+	esac
+esac
+
+
+# Process the rlog output, generating ChangeLog style entries.
+
+# First, reformat the rlog output so that each line contains one log entry.
+# Transliterate \n to \001 so that multiline entries fit on a single line.
+# Discard irrelevant rlog output.
+$AWK <$rlogout '
+	BEGIN { repository = "'"$repository"'" }
+	/^RCS file:/ {
+		if (repository != "") {
+			filename = $3
+			if (substr(filename, 1, length(repository) + 1) == repository "/") {
+				filename = substr(filename, length(repository) + 2)
+			}
+			if (filename ~ /,v$/) {
+				filename = substr(filename, 1, length(filename) - 2)
+			}
+			if (filename ~ /(^|\/)Attic\/[^\/]*$/) {
+				i = length(filename)
+				while (substr(filename, i, 1) != "/") i--
+				filename = substr(filename, 1, i - 6) substr(filename, i + 1)
+			}
+		}
+		rev = "?"
+	}
+	/^Working file:/ { if (repository == "") filename = $3 }
+	/'"$rlog_revision_pattern"'/, /^(-----------*|===========*)$/ {
+		line = $0
+		if (line ~ /'"$rlog_revision_pattern"'/) {
+			rev = $2
+			next
+		}
+		if (line ~ /^date: [0-9][- +\/0-9:]*;/) {
+			date = $2
+			if (date ~ /\//) {
+				# This is a traditional RCS format date YYYY/MM/DD.
+				# Replace "/"s with "-"s to get ISO format.
+				newdate = ""
+				while ((i = index(date, "/")) != 0) {
+					newdate = newdate substr(date, 1, i-1) "-"
+					date = substr(date, i+1)
+				}
+				date = newdate date
+			}
+			time = substr($3, 1, length($3) - 1)
+			author = substr($5, 1, length($5)-1)
+			printf "%s %s %s %s %s %c", filename, rev, date, time, author, 1
+			rev = "?"
+			next
+		}
+		if (line ~ /^branches: /) { next }
+		if (line ~ /^(-----------*|===========*)$/) { print ""; next }
+		if (line == "Initial revision" || line ~ /^file .+ was initially added on branch .+\.$/) {
+			line = "New file."
+		}
+		printf "%s%c", line, 1
+	}
+' |
+
+# Now each line is of the form
+# FILENAME REVISION YYYY-MM-DD HH:MM:SS[+-TIMEZONE] AUTHOR \001LOG
+#	where \001 stands for a carriage return,
+#	and each line of the log is terminated by \001 instead of \n.
+# Sort the log entries, first by date+time (in reverse order),
+# then by author, then by log entry, and finally by file name and revision
+# (just in case).
+sort +2 -4r +4 +0 |
+
+# Finally, reformat the sorted log entries.
+$AWK '
+	BEGIN {
+		logTZ = "'"$logTZ"'"
+		revision = "'"$revision"'"
+
+		# Some awk variants do not understand "\001", so we have to
+		# put the char directly in the file.
+		SOH="
" # <-- There is a single SOH (octal code 001) here.
+
+		# Initialize the fullname and mailaddr associative arrays.
+		'"$initialize_fullname"'
+		'"$initialize_mailaddr"'
+
+		# Initialize indent string.
+		indent_string = ""
+		i = '"$indent"'
+		if (0 < '"$tabwidth"')
+			for (;  '"$tabwidth"' <= i;  i -= '"$tabwidth"')
+				indent_string = indent_string "\t"
+		while (1 <= i--)
+			indent_string = indent_string " "
+	}
+
+	{
+		newlog = substr($0, 1 + index($0, SOH))
+
+		# Ignore log entries prefixed by "#".
+		if (newlog ~ /^#/) { next }
+
+		if (Log != newlog || date != $3 || author != $5) {
+
+			# The previous log and this log differ.
+
+			# Print the old log.
+			if (date != "") '"$printlogline"'
+
+			# Logs that begin with "{clumpname} " should be grouped together,
+			# and the clumpname should be removed.
+			# Extract the new clumpname from the log header,
+			# and use it to decide whether to output a blank line.
+			newclumpname = ""
+			sep = "\n"
+			if (date == "") sep = ""
+			if (newlog ~ /^\{[^'"$tab"' }]*}['"$tab"' ]/) {
+				i = index(newlog, "}")
+				newclumpname = substr(newlog, 1, i)
+				while (substr(newlog, i+1) ~ /^['"$tab"' ]/) i++
+				newlog = substr(newlog, i+1)
+				if (clumpname == newclumpname) sep = ""
+			}
+			printf sep
+			clumpname = newclumpname
+
+			# Get ready for the next log.
+			Log = newlog
+			if (files != "")
+				for (i in filesknown)
+					filesknown[i] = 0
+			files = ""
+		}
+		if (date != $3  ||  author != $5) {
+			# The previous date+author and this date+author differ.
+			# Print the new one.
+			date = $3
+			time = $4
+			author = $5
+
+			zone = ""
+			if (logTZ && ((i = index(time, "-")) || (i = index(time, "+"))))
+				zone = " " substr(time, i)
+
+			# Print "date[ timezone]  fullname  <email address>".
+			# Get fullname and email address from associative arrays;
+			# default to author and author@hostname if not in arrays.
+			if (fullname[author])
+				auth = fullname[author]
+			else
+				auth = author
+			printf "%s%s  %s  ", date, zone, auth
+			if (mailaddr[author])
+				printf "<%s>\n\n", mailaddr[author]
+			else
+				printf "<%s@%s>\n\n", author, "'"$hostname"'"
+		}
+		if (! filesknown[$1]) {
+			filesknown[$1] = 1
+			if (files == "") files = " " $1
+			else files = files ", " $1
+			if (revision && $2 != "?") files = files " " $2
+		}
+	}
+	END {
+		# Print the last log.
+		if (date != "") {
+			'"$printlogline"'
+			printf "\n"
+		}
+	}
+' &&
+
+
+# Exit successfully.
+
+exec rm -fr $logdir
+
+# Local Variables:
+# tab-width:4
+# End: