blob: ca2392804ad2115c152a196cdd130ea5a4dbe52c (
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
#!/bin/sh
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# Based on the ac-wrapper.pl script provided by MandrakeSoft
# Rewritten in bash by Gregorio Guidi
#
# Executes the correct autoconf version.
#
# - defaults to newest version available (hopefully autoconf-2.60)
# - runs autoconf 2.13 if:
# - envvar WANT_AUTOCONF is set to `2.1'
# -or-
# - `ac{local,include}.m4' or `configure.{in,ac}' have AC_PREREQ(2.1) (not higher)
# -or-
# - `configure' is already present and was generated by autoconf 2.13
warn() { printf "ac-wrapper: $*\n" 1>&2; }
err() { warn "$@"; exit 1; }
unset IFS
which() {
local p
IFS=: # we don't use IFS anywhere, so don't bother saving/restoring
for p in ${PATH} ; do
p="${p}/$1"
[ -e "${p}" ] && echo "${p}" && return 0
done
unset IFS
return 1
}
#
# Sanitize argv[0] since it isn't always a full path #385201
#
argv0=${0##*/}
case ${0} in
${argv0})
# find it in PATH
if ! full_argv0=$(which "${argv0}") ; then
err "could not locate ${argv0}; file a bug"
fi
;;
*)
# re-use full/relative paths
full_argv0=$0
;;
esac
if [ "${argv0}" = "ac-wrapper.sh" ] ; then
err "Don't call this script directly"
fi
if [ "${WANT_AUTOCONF}" = "2.1" ] && [ "${argv0}" = "autom4te" ] ; then
err "Autoconf 2.13 doesn't contain autom4te.\n" \
" Either unset WANT_AUTOCONF or don't execute anything\n" \
" that would use autom4te."
fi
if ! seq 0 0 2>/dev/null 1>&2 ; then #338518
seq() {
local f l i
case $# in
1) f=1 i=1 l=$1;;
2) f=$1 i=1 l=$2;;
3) f=$1 i=$2 l=$3;;
esac
while :; do
[ $l -lt $f -a $i -gt 0 ] && break
[ $f -lt $l -a $i -lt 0 ] && break
echo $f
: $(( f += i ))
done
return 0
}
fi
#
# Set up bindings between actual version and WANT_AUTOCONF;
# Start at last known unstable/stable versions to speed up lookup process.
#
KNOWN_AUTOCONF="2.71:2.5 2.70:2.5 2.69:2.5"
vers="${KNOWN_AUTOCONF} 9999:2.5 $(printf '2.%s:2.5 ' `seq 99 -1 59`) 2.13:2.1"
binary=""
for v in ${vers} ; do
auto_ver=${v%:*}
if [ -z "${binary}" ] && [ -x "${full_argv0}-${auto_ver}" ] ; then
binary="${full_argv0}-${auto_ver}"
break
fi
done
if [ -z "${binary}" ] ; then
err "Unable to locate any usuable version of autoconf.\n" \
"\tI tried these versions: ${vers}\n" \
"\tWith a base name of '${full_argv0}'."
fi
#
# Check the WANT_AUTOCONF setting. We accept a whitespace delimited
# list of autoconf versions.
#
if [ -n "${WANT_AUTOCONF}" ] ; then
for v in ${vers} x ; do
if [ "${v}" = "x" ] ; then
warn "warning: invalid WANT_AUTOCONF '${WANT_AUTOCONF}'; ignoring."
unset WANT_AUTOCONF
break
fi
auto_ver=${v%:*}
want_ver=${v#*:}
for wx in ${WANT_AUTOCONF} ; do
if [ "${wx}" = "latest" ] ; then
wx="2.5"
fi
if [ -x "${full_argv0}-${wx}" ] ; then
binary="${full_argv0}-${wx}"
v="x"
elif [ "${wx}" = "${want_ver}" ] && [ -x "${full_argv0}-${auto_ver}" ] ; then
binary="${full_argv0}-${auto_ver}"
v="x"
fi
done
[ "${v}" = "x" ] && break
done
fi
#
# autodetect helpers
#
acprereq_version() {
sed -n -E \
-e '/^\s*(#|dnl)/d' \
-e '/AC_PREREQ/s:.*AC_PREREQ\s*\(\[?\s*([0-9.]+)\s*\]?\):\1:p' \
"$@" |
LC_ALL=C sort -n -t . |
tail -1
}
generated_version() {
local re='^# Generated (by (GNU )?Autoconf|automatically using autoconf version) ([0-9.]+).*'
sed -n -E "/${re}/{s:${re}:\3:;p;q}" "$@"
}
#
# autodetect routine
#
if [ "${WANT_AUTOCONF}" = "2.1" ] && [ -f "configure.ac" ] ; then
err \
"Since configure.ac is present, aclocal will always use autoconf 2.59+\n" \
"\twhich conflicts with your choice and causes errors. You have two options:\n" \
"\t1. Try executing the command again after removing configure.ac\n" \
"\t2. Don't set WANT_AUTOCONF (currently set to '${WANT_AUTOCONF}')"
fi
if [ "${WANT_AUTOCONF:-2.1}" = "2.1" ] && [ -n "${WANT_AUTOMAKE}" ] ; then
# Automake-1.7 and better require autoconf-2.5x so if WANT_AUTOMAKE
# is set to an older version, let's do some sanity checks.
case "${WANT_AUTOMAKE}" in
1.[456])
acfiles=$(ls aclocal.m4 acinclude.m4 configure.in configure.ac 2>/dev/null)
[ -n "${acfiles}" ] && confversion=$(acprereq_version ${acfiles})
[ -z "${confversion}" ] && [ -r "configure" ] \
&& confversion=$(generated_version configure)
if [ "${confversion}" = "2.1" ] && [ ! -f "configure.ac" ] ; then
binary="${full_argv0}-2.13"
fi
esac
fi
if [ -n "${WANT_ACWRAPPER_DEBUG}" ] ; then
if [ -n "${WANT_AUTOCONF}" ] ; then
warn "DEBUG: WANT_AUTOCONF is set to ${WANT_AUTOCONF}"
fi
warn "DEBUG: will execute <${binary}>"
fi
#
# for further consistency
#
if [ -z "${WANT_AUTOCONF}" ] ; then
for v in ${vers} ; do
auto_ver=${v%:*}
want_ver=${v#*:}
if [ "${binary}" = "${full_argv0}-${auto_ver}" ] ; then
export WANT_AUTOCONF="${want_ver}"
break
fi
done
fi
#
# Now try to run the binary
#
if [ ! -x "${binary}" ] ; then
# this shouldn't happen
err "${binary} is missing or not executable.\n" \
"\tPlease try emerging the correct version of autoconf."
fi
exec "${binary}" "$@"
# The shell will error out if `exec` failed.
|