#!/bin/sh
# 
# Copyright (c) 2015 Carsten Larsen
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. 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 AUTHOR 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 AUTHOR 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.
#

set -e

EXEC='whois'

HDRS='
	config.h
	getaddrinfo.h
	version.h
'

SRCS='
	whois.c
	error.c
	getaddrinfo.c
	sgetln.c
	strnstr.c
	wasprint.c
'

if make -v 2>&1 | grep GNU > /dev/null 2>&1 ; then
	echo "make is GNU make."
	VALID=true
#else
#	echo "Wrong version of make."
#	VALID=false
fi

if $VALID ; then
	(
	echo '# Portable Makefile generated by configure'
	echo ''
	echo "all:	$EXEC"
	echo ''
	if [ -n "$1" ] && [ $1 = "AMIGA" ] ; then
		echo 'CC      = m68k-amigaos-gcc'
		echo "CFLAGS  = -O2 -m68000 -noixemul -Iinclude -Wall -Werror"
		echo "LDFLAGS = -s -liberty -lm -lgcc"
	elif [ -n "$1" ] && [ $1 = "AROS" ] ; then
		echo 'CC      = gcc'
		echo "CFLAGS  = -O2 -Iinclude -Wall -Werror"
		echo "LDFLAGS = -lm"
	else
		echo "CFLAGS  = -O2 -Wall -Werror"
		echo "LDFLAGS = -s -lm"
	fi
	echo ''

	for f in ${HDRS}
	do
		b=`basename $f .h`
		i=`sed -n -e '/#include.*"/{
			s/"$//
			s/.*"//
			p
		}' $f | sort -u`
		if [ "x${i}" != "x" ] ; then
			echo "${b}.h:	" ${i}
			echo "	touch ${b}.h"
			echo
		fi
	done
	
	l=""
	for f in ${SRCS}
	do
		b=`basename $f .c`
		i=`sed -n -e '/#include.*"/{
			s/"$//
			s/.*"//
			p
		}' $f | sort -u`
		echo "${b}.o:	${b}.c" ${i}
		echo
		l="${l} ${b}.o"
	done

	echo
	echo "$EXEC:	${l}"
	echo "	\${CC} \${CFLAGS} -o $EXEC ${l} \${LDFLAGS}"
	echo
	echo "clean:"
	echo "	rm -f ${l} $EXEC"
	echo
	echo "depend:"
	echo "	@echo Dependencies already done"
	) > Makefile
	
	echo "Makefile generated"
fi