#!/bin/sh

# CONFIGURE SCRIPT FOR CITADEL TEXT CLIENT
# This file is part of "conf-IG-ure"
# Copyright (C) 2016-2019 by Art Cancro
# Distributed under the terms of the GNU General Public License v3 with the following special exceptions:
# 1. By using this software you agree that it's called "Linux", not "GNU/Linux"
# 2. By using this software you agree that it's called "open source", not "free software"
# 3. By using this software you agree that GNU Autotools are crap, which is why conf-IG-ure exists
# 4. By using this software you agree that Richard Stallman is a communist.
# 5. By reading these special exceptions you have already agreed to them.

echo 
echo 
echo Running the configure script to create config.mk
echo

# Parse the command line arguments
for x in $*
do
	a=$1
	k=`echo $a | awk -F= ' { print $1 } '`
	v=`echo $a | awk -F= ' { print $2 } '`

	case $k in
		--prefix)
			PREFIX=$v
		;;
		--bindir)
			BINDIR=$v
		;;
		--etcdir)
			ETCDIR=$v
		;;
		--ctdldir)
			CTDLDIR=$v
		;;
		--with-ssl)
			SSL=yes
		;;
		--without-ssl)
			SSL=no
		;;
		*)
			echo $0 : unknown option $k
			echo
			echo Valid options are:
			echo '	--prefix=PREFIX		Install files in PREFIX [/usr/local]'
			echo '	--bindir=DIR		Install executables in DIR [PREFIX/bin]'
			echo '  --etcdir=DIR            Install citadel.rc in DIR [PREFIX/etc]'
			echo '	--ctdldir=DIR		Look for Citadel server in DIR [/usr/local/citadel]'
			echo '  --with-ssl              Force build with OpenSSL support [normally autodetected]'
			echo '  --without-ssl           Force build without OpenSSL support [normally autodetected]'
			exit 1
		;;
	esac
	shift
done

# Set any missing values

[ "$PREFIX" = "" ] 	&& PREFIX=/usr/local
[ "$BINDIR" = "" ]	&& BINDIR=${PREFIX}/bin
[ "$CTDLDIR" = "" ]	&& CTDLDIR=/usr/local/citadel
[ "$CFLAGS" = "" ]	&& CFLAGS='-ggdb'
[ "$LDFLAGS" = "" ]	&& LDFLAGS=''

# Test for OpenSSL
[ "$SSL" != "yes" ] && [ "$SSL" != "no" ] && {
	echo Testing for OpenSSL...
	tempfile=`tempfile 2>/dev/null` || tempfile=/tmp/configure.$$
	tempcc=${tempfile}.c
	cat >$tempcc <<!
#include <openssl/ssl.h>
int main(int argc, char **argv) {
	SSL_load_error_strings();
	exit(0);
}
!
	SSL='no';
	cc $tempcc -lssl -lcrypto -o $tempfile && $tempfile && SSL='yes'
	rm -f $tempfile 2>/dev/null
	rm -f $tempcc 2>/dev/null
}
echo SSL: $SSL
[ "$SSL" = "yes" ] && {
	CFLAGS=${CFLAGS}' -DHAVE_OPENSSL'
	LDFLAGS=${LDFLAGS}' -lssl -lcrypto'
}

# Output the config.mk

(
	echo "CFLAGS := ${CFLAGS}"
	echo "LDFLAGS := ${LDFLAGS}"
	echo "PREFIX := ${PREFIX}"
	echo "BINDIR := ${BINDIR}"
	echo "CTDLDIR := ${CTDLDIR}"
) >config.mk

cat config.mk
echo