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+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+#
+# THIS ECLASS IS DEAD: It has been integrated into portage
+#
+# Author: Will Woods <wwoods@gentoo.org>
+#
+# This eclass is used to automatically update files that typically come with
+# automake to the newest version available on the system. The most common use
+# of this is to update config.guess and config.sub when configure dies from
+# misguessing your canonical system name (CHOST). It can also be used to update
+# other files that come with automake, e.g. depcomp, mkinstalldirs, etc.
+#
+# usage: gnuconfig_update [file1 file2 ...]
+# if called without arguments, config.guess and config.sub will be updated.
+# All files in the source tree ($S) with the given name(s) will be replaced
+# with the newest available versions chosen from the list of locations in
+# gnuconfig_findnewest(), below.
+#
+# gnuconfig_update should generally be called from src_unpack()
+
+
+DEPEND="sys-devel/gnuconfig"
+
+# Wrapper function for gnuconfig_do_update. If no arguments are given, update
+# config.sub and config.guess (old default behavior), otherwise update the
+# named files.
+gnuconfig_update() {
+
+# hmm some packages (like binutils gcc glibc) still use this ...
+# echo
+# ewarn "QA Notice: Please stop using me, portage updates files for you."
+# echo
+
+ local startdir # declared here ... used in gnuconfig_do_update
+
+ if [[ $1 == /* ]] ; then
+ startdir=$1
+ shift
+ else
+ startdir=${S}
+ fi
+
+ if [[ $# -gt 0 ]] ; then
+ gnuconfig_do_update "$@"
+ else
+ gnuconfig_do_update config.sub config.guess
+ fi
+
+ return $?
+}
+
+# Copy the newest available version of specified files over any old ones in the
+# source dir. This function shouldn't be called directly - use gnuconfig_update
+#
+# Note that since bash using dynamic scoping, startdir is available here from
+# the gnuconfig_update function
+gnuconfig_do_update() {
+ local configsubs_dir target targetlist file
+
+ [[ $# -eq 0 ]] && die "do not call gnuconfig_do_update; use gnuconfig_update"
+
+ configsubs_dir=$(gnuconfig_findnewest)
+ einfo "Using GNU config files from ${configsubs_dir}"
+ for file in "$@" ; do
+ if [[ ! -r ${configsubs_dir}/${file} ]] ; then
+ eerror "Can't read ${configsubs_dir}/${file}, skipping.."
+ continue
+ fi
+ targetlist=$(find "${startdir}" -name "${file}")
+ if [[ -n ${targetlist} ]] ; then
+ for target in ${targetlist} ; do
+ [[ -L ${target} ]] && rm -f "${target}"
+ einfo " Updating ${target/$startdir\//}"
+ cp -f "${configsubs_dir}/${file}" "${target}"
+ eend $?
+ done
+ else
+ ewarn " No ${file} found in ${startdir}, skipping ..."
+ fi
+ done
+
+ return 0
+}
+
+# this searches the standard locations for the newest config.{sub|guess}, and
+# returns the directory where they can be found.
+gnuconfig_findnewest() {
+ local locations=(
+ "${EPREFIX}"/usr/share/misc/config.sub
+ "${EPREFIX}"/usr/share/gnuconfig/config.sub
+ "${EPREFIX}"/usr/share/automake*/config.sub
+ "${EPREFIX}"/usr/share/libtool/config.sub
+ )
+ grep -s '^timestamp' "${locations[@]}" | \
+ sort -r -n -t\' -k2 | \
+ sed -n '1{s,/config.sub:.*$,,;p;q}'
+}