trunk/automake/am-wrapper-3.sh

#!/bin/bash
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /root/magellan-cvs/src/automake/am-wrapper-3.sh,v 1.1 2007-03-18 17:05:39 niro Exp $

# Based on the am-wrapper.pl script provided by MandrakeSoft
# Rewritten in bash by Gregorio Guidi
#
# Executes the correct automake version.
#
# - defaults to newest version available (hopefully automake-1.10)
# - runs automake-1.9 if:
#   - envvar WANT_AUTOMAKE is set to `1.9'
#     -or-
#   - `Makefile.in' was generated by automake-1.9
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.9
# - runs automake-1.8 if:
#   - envvar WANT_AUTOMAKE is set to `1.8'
#     -or-
#   - `Makefile.in' was generated by automake-1.8
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.8
# - runs automake-1.7 if:
#   - envvar WANT_AUTOMAKE is set to `1.7'
#     -or-
#   - `Makefile.in' was generated by automake-1.7
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.7
# - runs automake-1.6 if:
#   - envvar WANT_AUTOMAKE is set to `1.6'
#     -or-
#   - `Makefile.in'
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.6
# - runs automake-1.5 if:
#   - envvar WANT_AUTOMAKE is set to `1.5'
#     -or-
#   - `Makefile.in' was generated by automake-1.5
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.5
# - runs automake-1.4 if:
#   - envvar WANT_AUTOMAKE is set to `1.4'
#     -or-
#   - `Makefile.in' was generated by automake-1.4
#     -or-
#   - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4

if [ "${0##*/}" = "am-wrapper.sh" ] ; then
	echo "Don't call this script directly." >&2
	exit 1
fi

vers="1.10 1.9 1.8 1.7 1.6 1.5 1.4"

#
# Export the proper variable/versions and try to locate a usuable
# default (newer versions are preferred)
#
binary=""
for v in ${vers} ; do
	eval binary_${v/./_}="${0}-${v}"

	if [ -z "${binary}" ] && [ -x "${0}-${v}" ] ; then
		binary="${0}-${v}"
	fi
done
if [ -z "${binary}" ] ; then
	echo "am-wrapper: Unable to locate any usuable version of automake." >&2
	echo "            I tried these versions: ${vers}" >&2
	echo "            With a base name of '${0}'." >&2
	exit 1
fi

#
# Check the WANT_AUTOMAKE setting.  We accept a whitespace delimited
# list of automake versions.
#
if [ -n "${WANT_AUTOMAKE}" ] ; then
	for v in ${vers} x ; do
		if [ "${v}" = "x" ] ; then
			echo "am-wrapper: warning: invalid WANT_AUTOMAKE '${WANT_AUTOMAKE}'; ignoring." >&2
			unset WANT_AUTOMAKE
			break
		fi

		for wx in ${WANT_AUTOMAKE} ; do
			if [ "${wx}" = "${v}" ] ; then
				binary="binary_${v/./_}"
				binary="${!binary}"
				v="x"
			fi
		done
		[ "${v}" = "x" ] && break
	done
fi

#
# autodetect helpers
#
do_awk() {
	local file=$1 ; shift
	local arg=$1 ; shift
	echo $(gawk "{ if (match(\$0, \"$*\", res)) { print res[${arg}]; exit } }" ${file})
}

#
# autodetect routine
#
if [ -z "${WANT_AUTOMAKE}" ] ; then
	if [ -r "Makefile.in" ] ; then
		confversion_mf=$(do_awk Makefile.in 2 "^# Makefile.in generated (automatically )?by automake ([0-9].[0-9]+)")
	fi
	if [ -r "aclocal.m4" ] ; then
		confversion_ac=$(do_awk aclocal.m4 1 'generated automatically by aclocal ([0-9].[0-9]+)')
		confversion_am=$(do_awk aclocal.m4 1 '[[:space:]]*\\[?AM_AUTOMAKE_VERSION\\(\\[?([0-9].[0-9]+)[^)]*\\]?\\)')
	fi

	for v in ${vers} ; do
		if [ "${confversion_mf}" = "${v}" ] \
		   || [ "${confversion_ac}" = "${v}" ] \
		   || [ "${confversion_am}" = "${v}" ] ; then
			binary="binary_${v/./_}"
			binary="${!binary}"
			break
		fi
	done
fi

if [ "${WANT_AMWRAPPER_DEBUG}" ] ; then
	if [ "${WANT_AUTOMAKE}" ] ; then
		echo "am-wrapper: DEBUG: WANT_AUTOMAKE is set to ${WANT_AUTOMAKE}" >&2
	fi
	echo "am-wrapper: DEBUG: will execute <$binary>" >&2
fi

#
# for further consistency
#
for v in ${vers} ; do
	mybin="binary_${v/./_}"
	if [ "${binary}" = "${!mybin}" ] ; then
		export WANT_AUTOMAKE="${v}"
	fi
done

#
# Now try to run the binary
#
if [ ! -x "${binary}" ] ; then
	echo "am-wrapper: $binary is missing or not executable." >&2
	echo "            Please try emerging the correct version of automake." >&2
	exit 1
fi

exec "$binary" "$@"

echo "am-wrapper: was unable to exec $binary !?" >&2
exit 1
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-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