-# Copyright (C) 2015 - Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# SPDX-FileCopyrightText: 2015 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
+# SPDX-FileCopyrightText: 2016-2023 Michael Jeanson <mjeanson@efficios.com>
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set -exu
+
+# Version compare functions
+vercomp () {
+ set +u
+ if [[ "$1" == "$2" ]]; then
+ return 0
+ fi
+ local IFS=.
+ # Ignore the shellcheck warning, we want splitting to happen based on IFS.
+ # shellcheck disable=SC2206
+ local i ver1=($1) ver2=($2)
+ # fill empty fields in ver1 with zeros
+ for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)); do
+ ver1[i]=0
+ done
+ for ((i=0; i<${#ver1[@]}; i++)); do
+ if [[ -z ${ver2[i]} ]]; then
+ # fill empty fields in ver2 with zeros
+ ver2[i]=0
+ fi
+ if ((10#${ver1[i]} > 10#${ver2[i]})); then
+ return 1
+ fi
+ if ((10#${ver1[i]} < 10#${ver2[i]})); then
+ return 2
+ fi
+ done
+ set -u
+ return 0
+}
+
+verlte() {
+ vercomp "$1" "$2"; local res="$?"
+ [ "$res" -eq "0" ] || [ "$res" -eq "2" ]
+}
+
+verlt() {
+ vercomp "$1" "$2"; local res="$?"
+ [ "$res" -eq "2" ]
+}
+
+vergte() {
+ vercomp "$1" "$2"; local res="$?"
+ [ "$res" -eq "0" ] || [ "$res" -eq "1" ]
+}
+
+vergt() {
+ vercomp "$1" "$2"; local res="$?"
+ [ "$res" -eq "1" ]
+}
+
+verne() {
+ vercomp "$1" "$2"; local res="$?"
+ [ "$res" -ne "0" ]
+}
+
+print_header() {
+ set +x
+
+ local message=" $1 "
+ local message_len
+ local padding_len
+
+ message_len="${#message}"
+ padding_len=$(( (80 - (message_len)) / 2 ))
+
+ printf '\n'; printf -- '#%.0s' {1..80}; printf '\n'
+ printf -- '-%.0s' {1..80}; printf '\n'
+ printf -- '#%.0s' $(seq 1 $padding_len); printf '%s' "$message"; printf -- '#%.0s' $(seq 1 $padding_len); printf '\n'
+ printf -- '-%.0s' {1..80}; printf '\n'
+ printf -- '#%.0s' {1..80}; printf '\n\n'
+
+ set -x
+}
+
+failed_configure() {
+ # Assume we are in the configured build directory
+ print_header "BEGIN config.log"
+ cat config.log
+ print_header "END config.log"
+
+ # End the build with failure
+ exit 1
+}
+
+print_header "Liburcu build script starting"
+
+# Required variables
+WORKSPACE=${WORKSPACE:-}
+
+# Axis
+platform=${platform:-}
+conf=${conf:-}
+build=${build:-}
+cc=${cc:-}