# Copyright 1999-2022 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 # @ECLASS: gnuconfig.eclass # @MAINTAINER: # Sam James <sam@gentoo.org> # @AUTHOR: # Will Woods <wwoods@gentoo.org> # @SUPPORTED_EAPIS: 5 6 7 8 # @BLURB: Refresh bundled gnuconfig files (config.guess, config.sub) # @DESCRIPTION: # 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. # case ${EAPI:-0} in 5|6|7|8) ;; *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;; esac if [[ -z ${_GNUCONFIG_ECLASS} ]] ; then _GNUCONFIG_CLASS=1 BDEPEND="sys-devel/gnuconfig" [[ ${EAPI} == [56] ]] && DEPEND="${BDEPEND}" # @FUNCTION: gnuconfig_update # @USAGE: [file1 file2 ...] # @DESCRIPTION: # 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() # # 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() { 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 $? } # @FUNCTION: gnuconfig_do_update # @INTERNAL # @DESCRIPTION: # 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}" ebegin " Updating ${target/$startdir\//}" cp -f "${configsubs_dir}/${file}" "${target}" eend $? || die done else ewarn " No ${file} found in ${startdir}, skipping ..." fi done return 0 } # @FUNCTION: gnuconfig_findnewest # @INTERNAL # @DESCRIPTION: # This searches the standard locations for the newest config.{sub|guess}, and # returns the directory where they can be found. gnuconfig_findnewest() { local locations=() local prefix case ${EAPI} in 5|6) prefix="${EPREFIX}" ;; *) prefix="${BROOT}" ;; esac locations+=( "${prefix}"/usr/share/misc/config.sub "${prefix}"/usr/share/gnuconfig/config.sub "${prefix}"/usr/share/automake*/config.sub "${prefix}"/usr/share/libtool/config.sub ) grep -s '^timestamp' "${locations[@]}" | \ sort -r -n -t\' -k2 | \ sed -n '1{s,/config.sub:.*$,,;p;q}' } fi