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Contents of /trunk/am-wrapper/am-wrapper.sh

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Revision 3076 - (show annotations) (download) (as text)
Mon May 14 10:39:53 2018 UTC (5 years, 11 months ago) by niro
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-support automake-1.16
1 #!/bin/bash
2 # Copyright 1999-2006 Gentoo Foundation
3 # Distributed under the terms of the GNU General Public License v2
4 # $Header: /root/magellan-cvs/src/automake/am-wrapper-4.sh,v 1.1 2009-05-23 21:25:25 niro Exp $
5
6 # Based on the am-wrapper.pl script provided by MandrakeSoft
7 # Rewritten in bash by Gregorio Guidi
8 #
9 # Executes the correct automake version.
10 #
11 # - defaults to newest version available (hopefully automake-1.16)
12 # - runs automake-1.16 if:
13 # - envvar WANT_AUTOMAKE is set to `1.16'
14 # -or-
15 # - `Makefile.in' was generated by automake-1.16
16 # -or-
17 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.16
18 # - runs automake-1.15 if:
19 # - envvar WANT_AUTOMAKE is set to `1.15'
20 # -or-
21 # - `Makefile.in' was generated by automake-1.15
22 # -or-
23 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.15
24 # - runs automake-1.14 if:
25 # - envvar WANT_AUTOMAKE is set to `1.14'
26 # -or-
27 # - `Makefile.in' was generated by automake-1.14
28 # -or-
29 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.14
30 # - runs automake-1.13 if:
31 # - envvar WANT_AUTOMAKE is set to `1.13'
32 # -or-
33 # - `Makefile.in' was generated by automake-1.13
34 # -or-
35 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.13
36 # - runs automake-1.12 if:
37 # - envvar WANT_AUTOMAKE is set to `1.12'
38 # -or-
39 # - `Makefile.in' was generated by automake-1.12
40 # -or-
41 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.12
42 # - runs automake-1.11 if:
43 # - envvar WANT_AUTOMAKE is set to `1.11'
44 # -or-
45 # - `Makefile.in' was generated by automake-1.11
46 # -or-
47 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.11
48 # - runs automake-1.10 if:
49 # - envvar WANT_AUTOMAKE is set to `1.10'
50 # -or-
51 # - `Makefile.in' was generated by automake-1.10
52 # -or-
53 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.10
54 # - runs automake-1.9 if:
55 # - envvar WANT_AUTOMAKE is set to `1.9'
56 # -or-
57 # - `Makefile.in' was generated by automake-1.9
58 # -or-
59 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.9
60 # - runs automake-1.8 if:
61 # - envvar WANT_AUTOMAKE is set to `1.8'
62 # -or-
63 # - `Makefile.in' was generated by automake-1.8
64 # -or-
65 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.8
66 # - runs automake-1.7 if:
67 # - envvar WANT_AUTOMAKE is set to `1.7'
68 # -or-
69 # - `Makefile.in' was generated by automake-1.7
70 # -or-
71 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.7
72 # - runs automake-1.6 if:
73 # - envvar WANT_AUTOMAKE is set to `1.6'
74 # -or-
75 # - `Makefile.in'
76 # -or-
77 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.6
78 # - runs automake-1.5 if:
79 # - envvar WANT_AUTOMAKE is set to `1.5'
80 # -or-
81 # - `Makefile.in' was generated by automake-1.5
82 # -or-
83 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.5
84 # - runs automake-1.4 if:
85 # - envvar WANT_AUTOMAKE is set to `1.4'
86 # -or-
87 # - `Makefile.in' was generated by automake-1.4
88 # -or-
89 # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4
90
91 if [ "${0##*/}" = "am-wrapper.sh" ] ; then
92 echo "Don't call this script directly." >&2
93 exit 1
94 fi
95
96 vers="1.16 1.15 1.14 1.13 1.12 1.11 1.10 1.9 1.8 1.7 1.6 1.5 1.4"
97
98 #
99 # Export the proper variable/versions and try to locate a usuable
100 # default (newer versions are preferred)
101 #
102 binary=""
103 for v in ${vers} ; do
104 eval binary_${v/./_}="${0}-${v}"
105
106 if [ -z "${binary}" ] && [ -x "${0}-${v}" ] ; then
107 binary="${0}-${v}"
108 fi
109 done
110 if [ -z "${binary}" ] ; then
111 echo "am-wrapper: Unable to locate any usuable version of automake." >&2
112 echo " I tried these versions: ${vers}" >&2
113 echo " With a base name of '${0}'." >&2
114 exit 1
115 fi
116
117 #
118 # Check the WANT_AUTOMAKE setting. We accept a whitespace delimited
119 # list of automake versions.
120 #
121 if [ -n "${WANT_AUTOMAKE}" ] ; then
122 for v in ${vers} x ; do
123 if [ "${v}" = "x" ] ; then
124 echo "am-wrapper: warning: invalid WANT_AUTOMAKE '${WANT_AUTOMAKE}'; ignoring." >&2
125 unset WANT_AUTOMAKE
126 break
127 fi
128
129 for wx in ${WANT_AUTOMAKE} ; do
130 if [ "${wx}" = "${v}" ] ; then
131 binary="binary_${v/./_}"
132 binary="${!binary}"
133 v="x"
134 fi
135 done
136 [ "${v}" = "x" ] && break
137 done
138 fi
139
140 #
141 # autodetect helpers
142 #
143 do_awk() {
144 local file=$1 ; shift
145 local arg=$1 ; shift
146 echo $(gawk "{ if (match(\$0, \"$*\", res)) { print res[${arg}]; exit } }" ${file})
147 }
148
149 #
150 # autodetect routine
151 #
152 if [ -z "${WANT_AUTOMAKE}" ] ; then
153 if [ -r "Makefile.in" ] ; then
154 confversion_mf=$(do_awk Makefile.in 2 "^# Makefile.in generated (automatically )?by automake ([0-9].[0-9]+)")
155 fi
156 if [ -r "aclocal.m4" ] ; then
157 confversion_ac=$(do_awk aclocal.m4 1 'generated automatically by aclocal ([0-9].[0-9]+)')
158 confversion_am=$(do_awk aclocal.m4 1 '[[:space:]]*\\[?AM_AUTOMAKE_VERSION\\(\\[?([0-9].[0-9]+)[^)]*\\]?\\)')
159 fi
160
161 for v in ${vers} ; do
162 if [ "${confversion_mf}" = "${v}" ] \
163 || [ "${confversion_ac}" = "${v}" ] \
164 || [ "${confversion_am}" = "${v}" ] ; then
165 binary="binary_${v/./_}"
166 binary="${!binary}"
167 break
168 fi
169 done
170 fi
171
172 if [ "${WANT_AMWRAPPER_DEBUG}" ] ; then
173 if [ "${WANT_AUTOMAKE}" ] ; then
174 echo "am-wrapper: DEBUG: WANT_AUTOMAKE is set to ${WANT_AUTOMAKE}" >&2
175 fi
176 echo "am-wrapper: DEBUG: will execute <$binary>" >&2
177 fi
178
179 #
180 # for further consistency
181 #
182 for v in ${vers} ; do
183 mybin="binary_${v/./_}"
184 if [ "${binary}" = "${!mybin}" ] ; then
185 export WANT_AUTOMAKE="${v}"
186 fi
187 done
188
189 #
190 # Now try to run the binary
191 #
192 if [ ! -x "${binary}" ] ; then
193 echo "am-wrapper: $binary is missing or not executable." >&2
194 echo " Please try emerging the correct version of automake." >&2
195 exit 1
196 fi
197
198 exec "$binary" "$@"
199
200 echo "am-wrapper: was unable to exec $binary !?" >&2
201 exit 1