Annotation of /trunk/automake/am-wrapper-3.sh
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Sun Mar 18 17:05:39 2007 UTC (17 years, 6 months ago) by niro
File MIME type: application/x-sh
File size: 4315 byte(s)
Sun Mar 18 17:05:39 2007 UTC (17 years, 6 months ago) by niro
File MIME type: application/x-sh
File size: 4315 byte(s)
import am-wrapper-3.sh rev 1.3 from gentoo
1 | niro | 119 | #!/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-3.sh,v 1.1 2007-03-18 17:05:39 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-1.10) | ||
12 | # - runs automake-1.9 if: | ||
13 | # - envvar WANT_AUTOMAKE is set to `1.9' | ||
14 | # -or- | ||
15 | # - `Makefile.in' was generated by automake-1.9 | ||
16 | # -or- | ||
17 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.9 | ||
18 | # - runs automake-1.8 if: | ||
19 | # - envvar WANT_AUTOMAKE is set to `1.8' | ||
20 | # -or- | ||
21 | # - `Makefile.in' was generated by automake-1.8 | ||
22 | # -or- | ||
23 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.8 | ||
24 | # - runs automake-1.7 if: | ||
25 | # - envvar WANT_AUTOMAKE is set to `1.7' | ||
26 | # -or- | ||
27 | # - `Makefile.in' was generated by automake-1.7 | ||
28 | # -or- | ||
29 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.7 | ||
30 | # - runs automake-1.6 if: | ||
31 | # - envvar WANT_AUTOMAKE is set to `1.6' | ||
32 | # -or- | ||
33 | # - `Makefile.in' | ||
34 | # -or- | ||
35 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.6 | ||
36 | # - runs automake-1.5 if: | ||
37 | # - envvar WANT_AUTOMAKE is set to `1.5' | ||
38 | # -or- | ||
39 | # - `Makefile.in' was generated by automake-1.5 | ||
40 | # -or- | ||
41 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.5 | ||
42 | # - runs automake-1.4 if: | ||
43 | # - envvar WANT_AUTOMAKE is set to `1.4' | ||
44 | # -or- | ||
45 | # - `Makefile.in' was generated by automake-1.4 | ||
46 | # -or- | ||
47 | # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4 | ||
48 | |||
49 | if [ "${0##*/}" = "am-wrapper.sh" ] ; then | ||
50 | echo "Don't call this script directly." >&2 | ||
51 | exit 1 | ||
52 | fi | ||
53 | |||
54 | vers="1.10 1.9 1.8 1.7 1.6 1.5 1.4" | ||
55 | |||
56 | # | ||
57 | # Export the proper variable/versions and try to locate a usuable | ||
58 | # default (newer versions are preferred) | ||
59 | # | ||
60 | binary="" | ||
61 | for v in ${vers} ; do | ||
62 | eval binary_${v/./_}="${0}-${v}" | ||
63 | |||
64 | if [ -z "${binary}" ] && [ -x "${0}-${v}" ] ; then | ||
65 | binary="${0}-${v}" | ||
66 | fi | ||
67 | done | ||
68 | if [ -z "${binary}" ] ; then | ||
69 | echo "am-wrapper: Unable to locate any usuable version of automake." >&2 | ||
70 | echo " I tried these versions: ${vers}" >&2 | ||
71 | echo " With a base name of '${0}'." >&2 | ||
72 | exit 1 | ||
73 | fi | ||
74 | |||
75 | # | ||
76 | # Check the WANT_AUTOMAKE setting. We accept a whitespace delimited | ||
77 | # list of automake versions. | ||
78 | # | ||
79 | if [ -n "${WANT_AUTOMAKE}" ] ; then | ||
80 | for v in ${vers} x ; do | ||
81 | if [ "${v}" = "x" ] ; then | ||
82 | echo "am-wrapper: warning: invalid WANT_AUTOMAKE '${WANT_AUTOMAKE}'; ignoring." >&2 | ||
83 | unset WANT_AUTOMAKE | ||
84 | break | ||
85 | fi | ||
86 | |||
87 | for wx in ${WANT_AUTOMAKE} ; do | ||
88 | if [ "${wx}" = "${v}" ] ; then | ||
89 | binary="binary_${v/./_}" | ||
90 | binary="${!binary}" | ||
91 | v="x" | ||
92 | fi | ||
93 | done | ||
94 | [ "${v}" = "x" ] && break | ||
95 | done | ||
96 | fi | ||
97 | |||
98 | # | ||
99 | # autodetect helpers | ||
100 | # | ||
101 | do_awk() { | ||
102 | local file=$1 ; shift | ||
103 | local arg=$1 ; shift | ||
104 | echo $(gawk "{ if (match(\$0, \"$*\", res)) { print res[${arg}]; exit } }" ${file}) | ||
105 | } | ||
106 | |||
107 | # | ||
108 | # autodetect routine | ||
109 | # | ||
110 | if [ -z "${WANT_AUTOMAKE}" ] ; then | ||
111 | if [ -r "Makefile.in" ] ; then | ||
112 | confversion_mf=$(do_awk Makefile.in 2 "^# Makefile.in generated (automatically )?by automake ([0-9].[0-9]+)") | ||
113 | fi | ||
114 | if [ -r "aclocal.m4" ] ; then | ||
115 | confversion_ac=$(do_awk aclocal.m4 1 'generated automatically by aclocal ([0-9].[0-9]+)') | ||
116 | confversion_am=$(do_awk aclocal.m4 1 '[[:space:]]*\\[?AM_AUTOMAKE_VERSION\\(\\[?([0-9].[0-9]+)[^)]*\\]?\\)') | ||
117 | fi | ||
118 | |||
119 | for v in ${vers} ; do | ||
120 | if [ "${confversion_mf}" = "${v}" ] \ | ||
121 | || [ "${confversion_ac}" = "${v}" ] \ | ||
122 | || [ "${confversion_am}" = "${v}" ] ; then | ||
123 | binary="binary_${v/./_}" | ||
124 | binary="${!binary}" | ||
125 | break | ||
126 | fi | ||
127 | done | ||
128 | fi | ||
129 | |||
130 | if [ "${WANT_AMWRAPPER_DEBUG}" ] ; then | ||
131 | if [ "${WANT_AUTOMAKE}" ] ; then | ||
132 | echo "am-wrapper: DEBUG: WANT_AUTOMAKE is set to ${WANT_AUTOMAKE}" >&2 | ||
133 | fi | ||
134 | echo "am-wrapper: DEBUG: will execute <$binary>" >&2 | ||
135 | fi | ||
136 | |||
137 | # | ||
138 | # for further consistency | ||
139 | # | ||
140 | for v in ${vers} ; do | ||
141 | mybin="binary_${v/./_}" | ||
142 | if [ "${binary}" = "${!mybin}" ] ; then | ||
143 | export WANT_AUTOMAKE="${v}" | ||
144 | fi | ||
145 | done | ||
146 | |||
147 | # | ||
148 | # Now try to run the binary | ||
149 | # | ||
150 | if [ ! -x "${binary}" ] ; then | ||
151 | echo "am-wrapper: $binary is missing or not executable." >&2 | ||
152 | echo " Please try emerging the correct version of automake." >&2 | ||
153 | exit 1 | ||
154 | fi | ||
155 | |||
156 | exec "$binary" "$@" | ||
157 | |||
158 | echo "am-wrapper: was unable to exec $binary !?" >&2 | ||
159 | exit 1 |