source: trunk/essentials/sys-devel/m4/bootstrap@ 3898

Last change on this file since 3898 was 3090, checked in by bird, 19 years ago

m4 1.4.8
File size: 7.3 KB
Line 
1#! /bin/sh
2
3# bootstrap (GNU M4) version 2006-09-21
4# Written by Gary V. Vaughan <gary@gnu.org>
5
6# Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
7# This is free software; see the source for copying conditions. There is NO
8# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
9
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2 of the License, or
13# (at your option) any later version.
14#
15# This program 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 this program; if not, a copy can be downloaded from
22# http://www.gnu.org/copyleft/gpl.html, or by writing to the Free
23# Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
24# MA 02110-1301, USA.
25
26# Usage: $progname [options]
27
28# -f --force bootstrap even when sources are not from CVS
29# -v --version print version information
30# -h,-? --help print short or long help message
31
32# You can also set the following variables to help $progname
33# locate the right tools:
34# AUTORECONF, GNULIB_TOOL, RM, SED
35
36# This script bootstraps a CVS checkout of GNU M4 by correctly
37# calling out to parts of the GNU Build Platform. Currently this
38# requires GNU Autoconf 2.60, GNU Automake 1.9.6, and bleeding edge
39# CVS snapshots of GNU Gnulib.
40
41# Report bugs to <bug-m4@gnu.org>
42
43: ${AUTORECONF=autoreconf}
44: ${GNULIB_TOOL=gnulib-tool}
45: ${RM=rm -f}
46: ${SED=sed}
47
48dirname="s,/[^/]*$,,"
49basename="s,^.*/,,g"
50
51# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
52# is ksh but when the shell is invoked as "sh" and the current value of
53# the _XPG environment variable is not equal to 1 (one), the special
54# positional parameter $0, within a function call, is the name of the
55# function.
56progpath="$0"
57
58# The name of this program:
59progname=`echo "$progpath" | $SED "$basename"`
60PROGRAM=bootstrap
61
62# Detect whether this is a CVS checkout or a tarball
63CVS_only_file=HACKING
64
65# func_echo arg...
66# Echo program name prefixed message.
67func_echo ()
68{
69 echo $progname: ${1+"$@"}
70}
71
72
73# func_error arg...
74# Echo program name prefixed message to standard error.
75func_error ()
76{
77 echo $progname: ${1+"$@"} >&2
78}
79
80# func_fatal_error arg...
81# Echo program name prefixed message to standard error, and exit.
82func_fatal_error ()
83{
84 func_error ${1+"$@"}
85 exit $EXIT_FAILURE
86}
87
88# func_verbose arg...
89# Echo program name prefixed message in verbose mode only.
90func_verbose ()
91{
92 $opt_verbose && func_error ${1+"$@"}
93}
94
95# func_missing_arg argname
96# Echo program name prefixed message to standard error and set global
97# exit_cmd.
98func_missing_arg ()
99{
100 func_error "missing argument for $1"
101 exit_cmd=exit
102}
103
104# func_fatal_help arg...
105# Echo program name prefixed message to standard error, followed by
106# a help hint, and exit.
107func_fatal_help ()
108{
109 func_error ${1+"$@"}
110 func_fatal_error "Try \`$progname --help' for more information."
111}
112
113# func_missing_arg argname
114# Echo program name prefixed message to standard error and set global
115# exit_cmd.
116func_missing_arg ()
117{
118 func_error "missing argument for $1"
119 exit_cmd=exit
120}
121
122# func_usage
123# Echo short help message to standard output and exit.
124func_usage ()
125{
126 $SED '/^# Usage:/,/# -h/ {
127 s/^# //; s/^# *$//;
128 s/\$progname/'$progname'/;
129 p;
130 }; d' < "$progpath"
131 echo
132 echo "run \`$progname --help | more' for full usage"
133 exit $EXIT_SUCCESS
134}
135
136# func_help
137# Echo long help message to standard output and exit.
138func_help ()
139{
140 $SED '/^# Usage:/,/# Report bugs to/ {
141 s/^# //; s/^# *$//;
142 s/\$progname/'$progname'/;
143 p;
144 }; d' < "$progpath"
145 exit $EXIT_SUCCESS
146}
147
148# func_version
149# Echo version message to standard output and exit.
150func_version ()
151{
152 $SED '/^# '$PROGRAM' (GNU /,/# warranty; / {
153 s/^# //; s/^# *$//;
154 s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/;
155 p;
156 }; d' < "$progpath"
157 exit $EXIT_SUCCESS
158}
159
160# func_update
161# Copy $1 to $2 if it is newer.
162func_update ()
163{
164 if test -f "$2" && cmp -s "$1" "$2" ; then
165 func_verbose "$2 is up-to-date"
166 else
167 func_echo "copying $1 -> $2"
168 cp "$1" "$2"
169 fi
170}
171
172# Parse options once, thoroughly. This comes as soon as possible in
173# the script to make things like `bootstrap --version' happen quickly.
174{
175 # sed scripts:
176 my_sed_single_opt='1s/^\(..\).*$/\1/;q'
177 my_sed_single_rest='1s/^..\(.*\)$/\1/;q'
178 my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
179 my_sed_long_arg='1s/^--[^=]*=//'
180
181 # this just eases exit handling
182 while test $# -gt 0; do
183 opt="$1"
184 shift
185 case $opt in
186 # Separate optargs to short options:
187 -f|--force) CVS_only_file= ;;
188 -\?|-h) func_usage ;;
189 --help) func_help ;;
190 --version) func_version ;;
191 --) break ;;
192 -*) func_fatal_help "unrecognized option \`$opt'" ;;
193 *) set -- "$opt" ${1+"$@"}; break ;;
194 esac
195 done
196
197 # Bail if the options were screwed
198 $exit_cmd $EXIT_FAILURE
199
200 if test -n "$CVS_only_file" && test ! -r "$CVS_only_file"; then
201 func_fatal_error "Bootstrapping from a non-CVS distribution is risky."
202 fi
203}
204
205## ---------------------------- ##
206## Find the gnulib module tree. ##
207## ---------------------------- ##
208
209case $GNULIB_TOOL in
210 /* ) gnulibdir=$GNULIB_TOOL ;; # absolute
211 */* ) gnulibdir=`pwd`/$GNULIB_TOOL ;; # relative
212 * ) gnulibdir=`which "$GNULIB_TOOL"` ;; # PATH search
213esac
214
215# Follow symlinks
216while test -h "$gnulibdir"; do
217
218 # Resolve symbolic link.
219 sedexpr1='s, -> ,#%%#,'
220 sedexpr2='s,^.*#%%#\(.*\)$,\1,p'
221 linkval=`LC_ALL=C ls -l "$gnulibdir" | $SED "$sedexpr1" | $SED -n "$sedexpr2"`
222 test -n "$linkval" || break
223
224 case "$linkval" in
225 /* ) gnulibdir="$linkval" ;;
226 * ) gnulibdir=`echo "$gnulibdir" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
227 esac
228
229done
230
231gnulibdir=`echo "$gnulibdir" | $SED "$dirname"`
232
233## ---------------------- ##
234## Import Gnulib modules. ##
235## ---------------------- ##
236
237func_echo "running: $GNULIB_TOOL --update"
238$GNULIB_TOOL --update || func_fatal_error "gnulib-tool failed"
239
240## ----------- ##
241## Autoreconf. ##
242## ----------- ##
243
244func_echo "running: $AUTORECONF --force --verbose --install"
245$AUTORECONF --force --verbose --install || func_fatal_error "autoreconf failed"
246
247## ---------------------------------------- ##
248## Gnulib is more up-to-date than automake. ##
249## ---------------------------------------- ##
250
251func_update "$gnulibdir"/build-aux/config.guess config.guess
252func_update "$gnulibdir"/build-aux/config.sub config.sub
253func_update "$gnulibdir"/build-aux/depcomp depcomp
254func_update "$gnulibdir"/build-aux/install-sh install-sh
255func_update "$gnulibdir"/build-aux/mdate-sh doc/mdate-sh
256func_update "$gnulibdir"/build-aux/missing missing
257func_update "$gnulibdir"/build-aux/texinfo.tex doc/texinfo.tex
258func_update "$gnulibdir"/doc/COPYING COPYING
259func_update "$gnulibdir"/doc/INSTALL INSTALL
260
261exit 0
262
263# Local variables:
264# eval: (add-hook 'write-file-hooks 'time-stamp)
265# time-stamp-start: "# bootstrap (GNU M4) version "
266# time-stamp-format: "%:y-%02m-%02d"
267# time-stamp-end: "$"
268# End:
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