Index: trunk/essentials/sys-devel/automake-wrapper/am-wrapper-3.sh
===================================================================
--- trunk/essentials/sys-devel/automake-wrapper/am-wrapper-3.sh	(revision 3154)
+++ trunk/essentials/sys-devel/automake-wrapper/am-wrapper-3.sh	(revision 3154)
@@ -0,0 +1,159 @@
+#!/bin/bash
+# Copyright 1999-2006 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/automake-wrapper/files/am-wrapper-3.sh,v 1.3 2006/11/05 10:22:00 vapier 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
