#! /bin/sh

# configure script for GNU ed - The GNU line editor

# Copyright (C) 2006-2017 Antonio Diaz Diaz.

#

# This configure script is free software: you have unlimited permission

# to copy, distribute and modify it.

pkgname=ed

pkgversion=1.14.2

progname=ed

srctrigger=doc/${pkgname}.texi

# clear some things potentially inherited from environment.

LC_ALL=C

export LC_ALL

srcdir=

prefix=/usr/local

exec_prefix='$(prefix)'

bindir='$(exec_prefix)/bin'

datarootdir='$(prefix)/share'

infodir='$(datarootdir)/info'

mandir='$(datarootdir)/man'

program_prefix=

CC=gcc

CPPFLAGS=

CFLAGS='-Wall -W -O2'

LDFLAGS=

# checking whether we are using GNU C.

/bin/sh -c "${CC} --version" > /dev/null 2>&1 ||

	{

	CC=cc

	CFLAGS=-O2

	}

# Loop over all args

args=

no_create=

while [ $# != 0 ] ; do

	# Get the first arg, and shuffle

	option=$1 ; arg2=no

	shift

	# Add the argument quoted to args

	args="${args} \"${option}\""

	# Split out the argument for options that take them

	case ${option} in

	*=*) optarg=`echo ${option} | sed -e 's,^[^=]*=,,;s,/$,,'` ;;

	esac

	# Process the options

	case ${option} in

	--help | -h)

		echo "Usage: $0 [OPTION]... [VAR=VALUE]..."

		echo

		echo "To assign makefile variables (e.g., CC, CFLAGS...), specify them as"

		echo "arguments to configure in the form VAR=VALUE."

		echo

		echo "Options: [defaults in brackets]"

		echo "  -h, --help            display this help and exit"

		echo "  -V, --version         output version information and exit"

		echo "  --srcdir=DIR          find the sources in DIR [. or ..]"

		echo "  --prefix=DIR          install into DIR [${prefix}]"

		echo "  --exec-prefix=DIR     base directory for arch-dependent files [${exec_prefix}]"

		echo "  --bindir=DIR          user executables directory [${bindir}]"

		echo "  --datarootdir=DIR     base directory for doc and data [${datarootdir}]"

		echo "  --infodir=DIR         info files directory [${infodir}]"

		echo "  --mandir=DIR          man pages directory [${mandir}]"

		echo "  --program-prefix=NAME install program and documentation prefixed with NAME"

		echo "  CC=COMPILER           C compiler to use [${CC}]"

		echo "  CPPFLAGS=OPTIONS      command line options for the preprocessor [${CPPFLAGS}]"

		echo "  CFLAGS=OPTIONS        command line options for the C compiler [${CFLAGS}]"

		echo "  LDFLAGS=OPTIONS       command line options for the linker [${LDFLAGS}]"

		echo

		exit 0 ;;

	--version | -V)

		echo "Configure script for GNU ${pkgname} version ${pkgversion}"

		exit 0 ;;

	--srcdir)            srcdir=$1 ; arg2=yes ;;

	--prefix)            prefix=$1 ; arg2=yes ;;

	--exec-prefix)  exec_prefix=$1 ; arg2=yes ;;

	--bindir)            bindir=$1 ; arg2=yes ;;

	--datarootdir)  datarootdir=$1 ; arg2=yes ;;

	--infodir)          infodir=$1 ; arg2=yes ;;

	--mandir)            mandir=$1 ; arg2=yes ;;

	--program-prefix) program_prefix=$1 ; arg2=yes ;;

	--srcdir=*)            srcdir=${optarg} ;;

	--prefix=*)            prefix=${optarg} ;;

	--exec-prefix=*)  exec_prefix=${optarg} ;;

	--bindir=*)            bindir=${optarg} ;;

	--datarootdir=*)  datarootdir=${optarg} ;;

	--infodir=*)          infodir=${optarg} ;;

	--mandir=*)            mandir=${optarg} ;;

	--program-prefix=*) program_prefix=${optarg} ;;

	--no-create)              no_create=yes ;;

	CC=*)             CC=${optarg} ;;

	CPPFLAGS=*) CPPFLAGS=${optarg} ;;

	CFLAGS=*)     CFLAGS=${optarg} ;;

	LDFLAGS=*)   LDFLAGS=${optarg} ;;

	--*)

		echo "configure: WARNING: unrecognized option: '${option}'" 1>&2 ;;

	*=* | *-*-*) ;;

	*)

		echo "configure: unrecognized option: '${option}'" 1>&2

		echo "Try 'configure --help' for more information." 1>&2

		exit 1 ;;

	esac

	# Check if the option took a separate argument

	if [ "${arg2}" = yes ] ; then

		if [ $# != 0 ] ; then args="${args} \"$1\"" ; shift

		else echo "configure: Missing argument to '${option}'" 1>&2

			exit 1

		fi

	fi

done

# Find the source files, if location was not specified.

srcdirtext=

if [ -z "${srcdir}" ] ; then

	srcdirtext="or . or .." ; srcdir=.

	if [ ! -r "${srcdir}/${srctrigger}" ] ; then srcdir=.. ; fi

	if [ ! -r "${srcdir}/${srctrigger}" ] ; then

		## the sed command below emulates the dirname command

		srcdir=`echo $0 | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`

	fi

fi

if [ ! -r "${srcdir}/${srctrigger}" ] ; then

	echo "configure: Can't find sources in ${srcdir} ${srcdirtext}" 1>&2

	echo "configure: (At least ${srctrigger} is missing)." 1>&2

	exit 1

fi

# Set srcdir to . if that's what it is.

if [ "`pwd`" = "`cd "${srcdir}" ; pwd`" ] ; then srcdir=. ; fi

echo

if [ -z "${no_create}" ] ; then

	echo "creating config.status"

	rm -f config.status

	cat > config.status << EOF

#! /bin/sh

# This file was generated automatically by configure. Don't edit.

# Run this file to recreate the current configuration.

#

# This script is free software: you have unlimited permission

# to copy, distribute and modify it.

exec /bin/sh $0 ${args} --no-create

EOF

	chmod +x config.status

fi

echo "creating Makefile"

echo "VPATH = ${srcdir}"

echo "prefix = ${prefix}"

echo "exec_prefix = ${exec_prefix}"

echo "bindir = ${bindir}"

echo "datarootdir = ${datarootdir}"

echo "infodir = ${infodir}"

echo "mandir = ${mandir}"

echo "program_prefix = ${program_prefix}"

echo "CC = ${CC}"

echo "CPPFLAGS = ${CPPFLAGS}"

echo "CFLAGS = ${CFLAGS}"

echo "LDFLAGS = ${LDFLAGS}"

rm -f Makefile

cat > Makefile << EOF

# Makefile for GNU ed - The GNU line editor

# Copyright (C) 2006-2017 Antonio Diaz Diaz.

# This file was generated automatically by configure. Don't edit.

#

# This Makefile is free software: you have unlimited permission

# to copy, distribute and modify it.

pkgname = ${pkgname}

pkgversion = ${pkgversion}

progname = ${progname}

VPATH = ${srcdir}

prefix = ${prefix}

exec_prefix = ${exec_prefix}

bindir = ${bindir}

datarootdir = ${datarootdir}

infodir = ${infodir}

mandir = ${mandir}

program_prefix = ${program_prefix}

CC = ${CC}

CPPFLAGS = ${CPPFLAGS}

CFLAGS = ${CFLAGS}

LDFLAGS = ${LDFLAGS}

EOF

cat "${srcdir}/Makefile.in" >> Makefile

echo "OK. Now you can run make."