configure

#!/bin/sh

#
# display help screeen
#
help() {
cat << END
Usage: configure [options]
--prefix=DIR			set arch independent install prefix to DIR [$prefix]
--exec-prefix=DIR		set arch dependent install prefix to DIR [\$prefix]
--bindir=DIR			install executables in DIR [\$exec_prefix/bin]
--mandir=DIR			install man pages in DIR [\$prefix/man]
END
}

#
# defaults
#
prefix=/usr/local			# where to install sndiokeys
unset vars				# variables passed as arguments
unset exec_prefix			# prefix for arch. independent files
unset bindir				# path where to install binaries
unset mandir				# path where to install man pages
sndio_inc=`pkg-config --cflags sndio`	# extra -I for X11
sndio_lib=`pkg-config --libs sndio`	# extra -L and -l for X11
x11_inc=`pkg-config --cflags x11`	# extra -I for X11
x11_lib=`pkg-config --libs x11`		# extra -L and -l for X11

#
# guess OS-specific parameters
#
case `uname` in
	Linux)
		ldadd="-lrt -lbsd"
		;;
esac

# shell word separator (none)
IFS=''

# sed-quoted new-line
nl='\
'

for i; do
	case "$i" in
	--prefix=*)
		prefix="${i#--prefix=}"
		shift;;
	--exec-prefix=*)
		exec_prefix="${i#--exec-prefix=}"
		shift;;
	--bindir=*)
		bindir="${i#--bindir=}"
		shift;;
	--mandir=*)
		mandir="${i#--mandir=}"
		shift;;
	CC=*|CFLAGS=*|LDFLAGS=*)
		vars="$vars$i$nl"
		shift;;
	*)
		help
		exit 1
		;;
	esac
done

#
# if $xxxdir is not specified, define it to $prefix/xxx
#
exec_prefix="${exec_prefix:-$prefix}"
bindir="${bindir:-$exec_prefix/bin}"
mandir="${mandir:-$prefix/man}"

for f in Makefile
do
	sed \
	-e "s:@bindir@:$bindir:" \
	-e "s:@mandir@:$mandir:" \
	-e "s:@defs@:$defs:" \
	-e "s:@ldadd@:$ldadd:" \
	-e "s:@vars@:${vars}:" \
	-e "s:@sndio_inc@:${sndio_inc}:" \
	-e "s:@sndio_lib@:${sndio_lib}:" \
	-e "s:@x11_inc@:${x11_inc}:" \
	-e "s:@x11_lib@:${x11_lib}:" \
	< $f.in > $f
done

cat <<EOF

bindir................... $bindir
mandir................... $mandir

Do "make && make install" to compile and install sndiokeys

EOF