1#! @SHELL@
2# autoupdate - modernize a configure.in
3# Copyright (C) 1994 Free Software Foundation, Inc.
4
5# This program is free software; you can redistribute it and/or modify
6# it under the terms of the GNU General Public License as published by
7# the Free Software Foundation; either version 2, or (at your option)
8# any later version.
9
10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13# GNU General Public License for more details.
14
15# You should have received a copy of the GNU General Public License
16# along with this program; if not, write to the Free Software
17# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
18# 02111-1307, USA.
19
20# If given no args, update `configure.in';
21# With one arg, write on the standard output from the given template file.
22#
23# Written by David MacKenzie <djm@gnu.ai.mit.edu>
24
25usage="\
26Usage: autoupdate [-h] [--help] [-m dir] [--macrodir=dir] 
27       [--version] [template-file]" 
28
29sedtmp=/tmp/acups.$$
30# For debugging.
31#sedtmp=/tmp/acups
32show_version=no
33test -z "${AC_MACRODIR}" && AC_MACRODIR=@datadir@
34
35while test $# -gt 0 ; do
36   case "${1}" in 
37      -h | --help | --h* )
38         echo "${usage}" 1>&2; exit 0 ;;
39      --macrodir=* | --m*=* )
40         AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
41         shift ;;
42      -m | --macrodir | --m* ) 
43         shift
44         test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
45         AC_MACRODIR="${1}"
46         shift ;;
47      --version | --versio | --versi | --vers)
48        show_version=yes; shift ;;
49      -- )     # Stop option processing
50        shift; break ;;
51      - )	# Use stdin as input.
52        break ;;
53      -* )
54        echo "${usage}" 1>&2; exit 1 ;;
55      * )
56        break ;;
57   esac
58done
59
60if test $show_version = yes; then
61  version=`sed -n 's/define.AC_ACVERSION.[ 	]*\([0-9.]*\).*/\1/p' \
62    $AC_MACRODIR/acgeneral.m4`
63  echo "Autoconf version $version"
64  exit 0
65fi
66
67: ${SIMPLE_BACKUP_SUFFIX='~'}
68
69tmpout=acupo.$$
70trap 'rm -f $sedtmp $tmpout; exit 1' 1 2 15
71case $# in
72  0) infile=configure.in; out="> $tmpout"
73     # Make sure $infile can be read, and $tmpout has the same permissions.
74     cp $infile $tmpout || exit
75
76     # Make sure $infile can be written.
77     if test ! -w $infile; then
78       rm -f $tmpout
79       echo "$0: $infile: cannot write" >&2
80       exit 1
81     fi
82     ;;
83  1) infile="$1"; out= ;;
84  *) echo "$usage" >&2; exit 1 ;;
85esac
86
87# Turn the m4 macro file into a sed script.
88# For each old macro name, make one substitution command to replace it
89# at the end of a line, and one when followed by ( or whitespace.
90# That is easier than splitting the macros up into those that take
91# arguments and those that don't.
92sed -n -e '
93/^AC_DEFUN(/ {
94  s//s%/
95  s/, *\[indir(\[/$%/
96  s/\].*/%/
97  p
98  s/\$//
99  s/%/^/
100  s/%/\\([( 	]\\)^/
101  s/%/\\1^/
102  s/\^/%/g
103  p
104}' ${AC_MACRODIR}/acoldnames.m4 > $sedtmp
105eval sed -f $sedtmp $infile $out
106
107case $# in
108  0) mv configure.in configure.in${SIMPLE_BACKUP_SUFFIX} &&
109     mv $tmpout configure.in ;;
110esac
111
112rm -f $sedtmp $tmpout
113exit 0
114