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Annotation of /tags/am-wrapper-6/am-wrapper.sh

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Revision 1916 - (hide annotations) (download) (as text)
Tue Sep 11 13:49:11 2012 UTC (11 years, 7 months ago) by niro
Original Path: trunk/am-wrapper/am-wrapper.sh
File MIME type: application/x-sh
File size: 4982 byte(s)
-Import from pkgsrc and added VERSION file 
1 niro 1916 #!/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-1.12)
12     # - runs automake-1.12 if:
13     # - envvar WANT_AUTOMAKE is set to `1.12'
14     # -or-
15     # - `Makefile.in' was generated by automake-1.12
16     # -or-
17     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.12
18     # - runs automake-1.11 if:
19     # - envvar WANT_AUTOMAKE is set to `1.11'
20     # -or-
21     # - `Makefile.in' was generated by automake-1.11
22     # -or-
23     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.11
24     # - runs automake-1.10 if:
25     # - envvar WANT_AUTOMAKE is set to `1.10'
26     # -or-
27     # - `Makefile.in' was generated by automake-1.10
28     # -or-
29     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.10
30     # - runs automake-1.9 if:
31     # - envvar WANT_AUTOMAKE is set to `1.9'
32     # -or-
33     # - `Makefile.in' was generated by automake-1.9
34     # -or-
35     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.9
36     # - runs automake-1.8 if:
37     # - envvar WANT_AUTOMAKE is set to `1.8'
38     # -or-
39     # - `Makefile.in' was generated by automake-1.8
40     # -or-
41     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.8
42     # - runs automake-1.7 if:
43     # - envvar WANT_AUTOMAKE is set to `1.7'
44     # -or-
45     # - `Makefile.in' was generated by automake-1.7
46     # -or-
47     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.7
48     # - runs automake-1.6 if:
49     # - envvar WANT_AUTOMAKE is set to `1.6'
50     # -or-
51     # - `Makefile.in'
52     # -or-
53     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.6
54     # - runs automake-1.5 if:
55     # - envvar WANT_AUTOMAKE is set to `1.5'
56     # -or-
57     # - `Makefile.in' was generated by automake-1.5
58     # -or-
59     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.5
60     # - runs automake-1.4 if:
61     # - envvar WANT_AUTOMAKE is set to `1.4'
62     # -or-
63     # - `Makefile.in' was generated by automake-1.4
64     # -or-
65     # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4
66    
67     if [ "${0##*/}" = "am-wrapper.sh" ] ; then
68     echo "Don't call this script directly." >&2
69     exit 1
70     fi
71    
72     vers="1.12 1.11 1.10 1.9 1.8 1.7 1.6 1.5 1.4"
73    
74     #
75     # Export the proper variable/versions and try to locate a usuable
76     # default (newer versions are preferred)
77     #
78     binary=""
79     for v in ${vers} ; do
80     eval binary_${v/./_}="${0}-${v}"
81    
82     if [ -z "${binary}" ] && [ -x "${0}-${v}" ] ; then
83     binary="${0}-${v}"
84     fi
85     done
86     if [ -z "${binary}" ] ; then
87     echo "am-wrapper: Unable to locate any usuable version of automake." >&2
88     echo " I tried these versions: ${vers}" >&2
89     echo " With a base name of '${0}'." >&2
90     exit 1
91     fi
92    
93     #
94     # Check the WANT_AUTOMAKE setting. We accept a whitespace delimited
95     # list of automake versions.
96     #
97     if [ -n "${WANT_AUTOMAKE}" ] ; then
98     for v in ${vers} x ; do
99     if [ "${v}" = "x" ] ; then
100     echo "am-wrapper: warning: invalid WANT_AUTOMAKE '${WANT_AUTOMAKE}'; ignoring." >&2
101     unset WANT_AUTOMAKE
102     break
103     fi
104    
105     for wx in ${WANT_AUTOMAKE} ; do
106     if [ "${wx}" = "${v}" ] ; then
107     binary="binary_${v/./_}"
108     binary="${!binary}"
109     v="x"
110     fi
111     done
112     [ "${v}" = "x" ] && break
113     done
114     fi
115    
116     #
117     # autodetect helpers
118     #
119     do_awk() {
120     local file=$1 ; shift
121     local arg=$1 ; shift
122     echo $(gawk "{ if (match(\$0, \"$*\", res)) { print res[${arg}]; exit } }" ${file})
123     }
124    
125     #
126     # autodetect routine
127     #
128     if [ -z "${WANT_AUTOMAKE}" ] ; then
129     if [ -r "Makefile.in" ] ; then
130     confversion_mf=$(do_awk Makefile.in 2 "^# Makefile.in generated (automatically )?by automake ([0-9].[0-9]+)")
131     fi
132     if [ -r "aclocal.m4" ] ; then
133     confversion_ac=$(do_awk aclocal.m4 1 'generated automatically by aclocal ([0-9].[0-9]+)')
134     confversion_am=$(do_awk aclocal.m4 1 '[[:space:]]*\\[?AM_AUTOMAKE_VERSION\\(\\[?([0-9].[0-9]+)[^)]*\\]?\\)')
135     fi
136    
137     for v in ${vers} ; do
138     if [ "${confversion_mf}" = "${v}" ] \
139     || [ "${confversion_ac}" = "${v}" ] \
140     || [ "${confversion_am}" = "${v}" ] ; then
141     binary="binary_${v/./_}"
142     binary="${!binary}"
143     break
144     fi
145     done
146     fi
147    
148     if [ "${WANT_AMWRAPPER_DEBUG}" ] ; then
149     if [ "${WANT_AUTOMAKE}" ] ; then
150     echo "am-wrapper: DEBUG: WANT_AUTOMAKE is set to ${WANT_AUTOMAKE}" >&2
151     fi
152     echo "am-wrapper: DEBUG: will execute <$binary>" >&2
153     fi
154    
155     #
156     # for further consistency
157     #
158     for v in ${vers} ; do
159     mybin="binary_${v/./_}"
160     if [ "${binary}" = "${!mybin}" ] ; then
161     export WANT_AUTOMAKE="${v}"
162     fi
163     done
164    
165     #
166     # Now try to run the binary
167     #
168     if [ ! -x "${binary}" ] ; then
169     echo "am-wrapper: $binary is missing or not executable." >&2
170     echo " Please try emerging the correct version of automake." >&2
171     exit 1
172     fi
173    
174     exec "$binary" "$@"
175    
176     echo "am-wrapper: was unable to exec $binary !?" >&2
177     exit 1