summaryrefslogtreecommitdiffstats
path: root/build/autoconf/autoconf.sh
blob: ceb8a25b00afbe64f746404019af869b1e7b22ec (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
#! @SHELL@
# autoconf -- create `configure' using m4 macros
# Copyright (C) 1992, 1993, 1994, 1996 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; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

# If given no args, create `configure' from template file `configure.in'.
# With one arg, create a configure script on standard output from
# the given template file.

usage="\
Usage: autoconf [-h] [--help] [-m dir] [--macrodir=dir]
       [-l dir] [--localdir=dir] [--version] [template-file]"

# NLS nuisances.
# Only set these to C if already set.  These must not be set unconditionally
# because not all systems understand e.g. LANG=C (notably SCO).
# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
# Non-C LC_CTYPE values break the ctype check.
if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi

: ${AC_MACRODIR=@datadir@}
: ${M4=@M4@}
: ${AWK=@AWK@}
case "${M4}" in
/*) # Handle the case that m4 has moved since we were configured.
    # It may have been found originally in a build directory.
    test -f "${M4}" || M4=m4 ;;
esac

: ${TMPDIR=/tmp}
tmpout=${TMPDIR}/acout.$$
localdir=
show_version=no

while test $# -gt 0 ; do
   case "${1}" in
      -h | --help | --h* )
         echo "${usage}" 1>&2; exit 0 ;;
      --localdir=* | --l*=* )
         localdir="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
         shift ;;
      -l | --localdir | --l*)
         shift
         test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
         localdir="${1}"
         shift ;;
      --macrodir=* | --m*=* )
         AC_MACRODIR="`echo \"${1}\" | sed -e 's/^[^=]*=//'`"
         shift ;;
      -m | --macrodir | --m* )
         shift
         test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
         AC_MACRODIR="${1}"
         shift ;;
      --version | --v* )
         show_version=yes; shift ;;
      -- )     # Stop option processing
        shift; break ;;
      - )	# Use stdin as input.
        break ;;
      -* )
        echo "${usage}" 1>&2; exit 1 ;;
      * )
        break ;;
   esac
done

if test $show_version = yes; then
  version=`sed -n 's/define.AC_ACVERSION.[ 	]*\([0-9.]*\).*/\1/p' \
    $AC_MACRODIR/acgeneral.m4`
  echo "Autoconf version $version"
  exit 0
fi

case $# in
  0) infile=configure.in ;;
  1) infile="$1" ;;
  *) echo "$usage" >&2; exit 1 ;;
esac

trap 'rm -f $tmpin $tmpout; exit 1' 1 2 15

tmpin=${TMPDIR}/acin.$$ # Always set this, to avoid bogus errors from some rm's.
if test z$infile = z-; then
  infile=$tmpin
  cat > $infile
elif test ! -r "$infile"; then
  echo "autoconf: ${infile}: No such file or directory" >&2
  exit 1
fi

if test -n "$localdir"; then
  use_localdir="-I$localdir -DAC_LOCALDIR=$localdir"
else
  use_localdir=
fi

# Use the frozen version of Autoconf if available.
r= f=
# Some non-GNU m4's don't reject the --help option, so give them /dev/null.
case `$M4 --help < /dev/null 2>&1` in
*reload-state*) test -r $AC_MACRODIR/autoconf.m4f && { r=--reload f=f; } ;;
*traditional*) ;;
*) echo Autoconf requires GNU m4 1.1 or later >&2; rm -f $tmpin; exit 1 ;;
esac

$M4 -I$AC_MACRODIR $use_localdir $r autoconf.m4$f $infile > $tmpout ||
  { rm -f $tmpin $tmpout; exit 2; }

# You could add your own prefixes to pattern if you wanted to check for
# them too, e.g. pattern='\(AC_\|ILT_\)', except that UNIX sed doesn't do
# alternation.
pattern="AC_"

status=0
if grep "^[^#]*${pattern}" $tmpout > /dev/null 2>&1; then
  echo "autoconf: Undefined macros:" >&2
  sed -n "s/^[^#]*\\(${pattern}[_A-Za-z0-9]*\\).*/\\1/p" $tmpout |
    while read macro; do
      grep -n "^[^#]*$macro" $infile /dev/null
      test $? -eq 1 && echo >&2 "***BUG in Autoconf--please report*** $macro"
    done | sort -u >&2
  status=1
fi

if test $# -eq 0; then
  echo "This case should not be reached."
  exit 1
fi

# Put the real line numbers into the output to make config.log more helpful.
$AWK '
/__oline__/ { printf "%d:", NR + 1 }
           { print }
' $tmpout | sed '
/__oline__/s/^\([0-9][0-9]*\):\(.*\)__oline__/\2\1/
'

rm -f $tmpout

exit $status