Asm
#!/bin/sh
							#$Id$
							#Copyright (c) 2011-2020 Pierre Pronchery <khorben@defora.org>
							#
							#Redistribution and use in source and binary forms, with or without
							#modification, are permitted provided that the following conditions are met:
							#
							# * Redistributions of source code must retain the above copyright notice, this
							#   list of conditions and the following disclaimer.
							# * Redistributions in binary form must reproduce the above copyright notice,
							#   this list of conditions and the following disclaimer in the documentation
							#   and/or other materials provided with the distribution.
							#
							#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
							#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
							#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
							#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
							#FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
							#DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
							#SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
							#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
							#OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
							#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
							#variables
							CONFIGSH="${0%/pkgconfig.sh}/../config.sh"
							PREFIX="/usr/local"
							DEVNULL="/dev/null"
							PROGNAME="pkgconfig.sh"
							#executables
							DEBUG="_debug"
							INSTALL="install -m 0644"
							MKDIR="mkdir -m 0755 -p"
							RM="rm -f"
							SED="sed"
							[ -f "$CONFIGSH" ] && . "$CONFIGSH"
							#functions
							#debug
							_debug()
							{
								echo "$@" 1>&3
								"$@"
							}
							#error
							_error()
							{
								echo "$PROGNAME: $@" 1>&2
								return 2
							}
							#usage
							_usage()
							{
								echo "Usage: $PROGNAME [-c|-i|-u][-P prefix] target..." 1>&2
								return 1
							}
							#main
							clean=0
							install=0
							uninstall=0
							while getopts "ciuO:P:" name; do
								case $name in
									c)
										clean=1
										;;
									i)
										uninstall=0
										install=1
										;;
									u)
										install=0
										uninstall=1
										;;
									O)
										export "${OPTARG%%=*}"="${OPTARG#*=}"
										;;
									P)
										PREFIX="$OPTARG"
										;;
									?)
										_usage
										exit $?
										;;
								esac
							done
							shift $(($OPTIND - 1))
							if [ $# -lt 0 ]; then
								_usage
								exit $?
							fi
							#check the variables
							if [ -z "$PACKAGE" ]; then
								_error "The PACKAGE variable needs to be set"
								exit $?
							fi
							if [ -z "$VERSION" ]; then
								_error "The VERSION variable needs to be set"
								exit $?
							fi
							[ -z "$BINDIR" ] && BINDIR="$PREFIX/bin"
							[ -z "$DATADIR" ] && DATADIR="$PREFIX/share"
							[ -z "$INCLUDEDIR" ] && INCLUDEDIR="$PREFIX/include"
							[ -z "$LIBDIR" ] && LIBDIR="$PREFIX/lib"
							[ -z "$LIBEXECDIR" ] && LIBEXECDIR="$PREFIX/libexec"
							[ -z "$MANDIR" ] && MANDIR="$DATADIR/man"
							if [ -z "$SYSCONFDIR" ]; then
								SYSCONFDIR="$PREFIX/etc"
								[ "$PREFIX" = "/usr" ] && SYSCONFDIR="/etc"
							fi
							PKGCONFIG="$PREFIX/lib/pkgconfig"
							exec 3>&1
							while [ $# -gt 0 ]; do
								target="$1"
								shift
								#clean
								[ "$clean" -ne 0 ] && continue
								#uninstall
								if [ "$uninstall" -eq 1 ]; then
									$DEBUG $RM -- "$PKGCONFIG/$target"		|| exit 2
									continue
								fi
								#install
								if [ "$install" -eq 1 ]; then
									source="${target#$OBJDIR}"
									$DEBUG $MKDIR -- "$PKGCONFIG"			|| exit 2
									basename="$source"
									if [ "${source##*/}" != "$source" ]; then
										basename="${source##*/}"
									fi
									$DEBUG $INSTALL "$target" "$PKGCONFIG/$basename"|| exit 2
									continue
								fi
								#portability
								RPATH=
								if [ "$PREFIX" != "/usr" ]; then
									RPATH="-Wl,-rpath-link,\${libdir} -Wl,-rpath,\${libdir}"
									case $(uname -s) in
										"Darwin")
											RPATH="-Wl,-rpath,\${libdir}"
											;;
										"SunOS")
											RPATH="-Wl,-R\${libdir}"
											;;
									esac
								fi
								#create
								source="${target#$OBJDIR}"
								source="${source}.in"
								([ -z "$OBJDIR" ] || $DEBUG $MKDIR -- "${target%/*}")	|| exit 2
								$DEBUG $SED -e "s;@PACKAGE@;$PACKAGE;g" \
										-e "s;@VERSION@;$VERSION;g" \
										-e "s;@PREFIX@;$PREFIX;g" \
										-e "s;@BINDIR@;$BINDIR;g" \
										-e "s;@DATADIR@;$DATADIR;g" \
										-e "s;@INCLUDEDIR@;$INCLUDEDIR;g" \
										-e "s;@LIBDIR@;$LIBDIR;g" \
										-e "s;@LIBEXECDIR@;$LIBEXECDIR;g" \
										-e "s;@MANDIR@;$MANDIR;g" \
										-e "s;@PWD@;$PWD;g" \
										-e "s;@RPATH@;$RPATH;g" \
										-e "s;@SYSCONFDIR@;$SYSCONFDIR;g" \
										-- "$source" > "$target"
								if [ $? -ne 0 ]; then
									$DEBUG $RM -- "$target"
									exit 2
								fi
							done
							