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# Copyright 1999-2004 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/gnuconfig.eclass,v 1.19 2004/06/25 00:39:48 vapier Exp $
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#
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# Author: Will Woods <wwoods@gentoo.org>
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#
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# This eclass is used to automatically update files that typically come with
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# automake to the newest version available on the system. The most common use
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# of this is to update config.guess and config.sub when configure dies from
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# misguessing your canonical system name (CHOST). It can also be used to update
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# other files that come with automake, e.g. depcomp, mkinstalldirs, etc.
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#
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# usage: gnuconfig_update [file1 file2 ...]
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# if called without arguments, config.guess and config.sub will be updated.
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# All files in the source tree ($S) with the given name(s) will be replaced
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# with the newest available versions chosen from the list of locations in
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# gnuconfig_findnewest(), below.
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ECLASS=gnuconfig
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INHERITED="$INHERITED $ECLASS"
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DEPEND="sys-devel/gnuconfig"
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DESCRIPTION="Based on the ${ECLASS} eclass"
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# Wrapper function for gnuconfig_do_update. If no arguments are given, update
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# config.sub and config.guess (old default behavior), otherwise update the
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# named files.
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gnuconfig_update() {
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if [ $# -gt 0 ] ; then
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gnuconfig_do_update "$@"
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else
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gnuconfig_do_update config.sub config.guess
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fi
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}
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# Copy the newest available version of specified files over any old ones in the
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# source dir. This function shouldn't be called directly - use gnuconfig_update
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gnuconfig_do_update() {
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[ $# -eq 0 ] && die "do not call gnuconfig_do_update(); use gnuconfig_update()"
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local configsubs_dir="$(gnuconfig_findnewest)"
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local target targetlist file
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einfo "Using GNU config files from ${configsubs_dir}"
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for file in "$@" ; do
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if [ ! -r ${configsubs_dir}/${file} ] ; then
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eerror "Can't read ${configsubs_dir}/${file}, skipping.."
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continue
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fi
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targetlist=`find ${S} -name "${file}"`
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if [ -n "$targetlist" ] ; then
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for target in $targetlist; do
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einfo " Updating ${target/$S\//}"
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cp -f ${configsubs_dir}/${file} ${target}
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eend $?
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done
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else
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ewarn " No ${file} found in ${S}, skipping.."
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fi
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done
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}
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# this searches the standard locations for the newest config.{sub|guess}, and
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# returns the directory where they can be found.
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gnuconfig_findnewest() {
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local locations="/usr/share/gnuconfig/config.sub \
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/usr/share/automake-1.8/config.sub \
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/usr/share/automake-1.7/config.sub \
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/usr/share/automake-1.6/config.sub \
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/usr/share/automake-1.5/config.sub \
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/usr/share/automake-1.4/config.sub"
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local lt_location="/usr/share/libtool/config.sub"
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[ -f "${lt_location}" ] && locations="${locations} ${lt_location}"
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grep -s '^timestamp' ${locations} | sort -n -t\' -k2 | tail -n 1 | sed 's,/config.sub:.*$,,'
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}
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