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	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