#!/bin/sh
#
# configure, simulation of autoconf script, much simplified
#
# Copyright (c) 2008-2010 Wind River Systems, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the Lesser GNU General Public License version 2.1 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the Lesser GNU General Public License for more details.
#
# You should have received a copy of the Lesser GNU General Public License
# version 2.1 along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
#
# not a real configure script...
opt_prefix=
opt_libdir=
opt_suffix=
opt_bits=
opt_sqlite=/usr

usage()
{
	echo >&2 "usage:"
	echo >&2 "  configure --prefix=..."
	echo >&2 " 	      [--libdir=...]"
	echo >&2 " 	      [--suffix=...]"
	echo >&2 "            [--with-sqlite=...]"
	echo >&2 "            [--with-rpath=...|--without-rpath]"
	echo >&2 "            [--bits=32|64]"
	exit 1
}

for arg
do
	case $arg in
	--)	shift; break ;;
	--prefix=*)
		opt_prefix=${arg#--prefix=}
		;;
	--libdir=*)
		opt_libdir=${arg#--libdir=}
		;;
	--with-sqlite=*)
		opt_sqlite=${arg#--with-sqlite=}
		# assign new value if unset
		: ${opt_rpath=-Wl,-R\$(SQLITE)/lib}
		;;
	--without-rpath)
		opt_rpath=''
		;;
	--with-rpath=*)
	        rpath=${arg#--with-rpath=}
		opt_rpath=${rpath:+-Wl,-R$rpath}
		;;
	--suffix=*)
		opt_suffix=${arg#--suffix=}
		;;
	--bits=*)
		opt_bits=${arg#--bits=}
		case $opt_bits in
		64)	opt_mark64=64;;
		32)	opt_mark64=;;
		*)	echo >&2 "Unknown bit size $opt_bits (only 32 and 64 known)."
			;;
		esac
		;;
	*)
		echo >&2 "warning: Unrecognized option '$arg'"
		;;
	esac
done

if [ -z "$opt_prefix" ]; then
  usage
fi

if [ -n "$opt_bits" ] && [ -n "$opt_libdir" ]; then
    echo >&2 "Can not specify both --libdir and --bits"
    exit 1
fi
if [ -z "$opt_libdir" ]; then
    opt_libdir=$opt_prefix/lib$opt_mark64
fi

if [ ! -f "${opt_sqlite}/include/sqlite3.h" ]; then
    echo >&2 "SQLite3 headers not found in at ${opt_sqlite}/include/sqlite3.h. Please check that SQLite3 and SQLite3 headers are installed."
    exit 1
fi

read t1 t2 SQLITE3_VERSION << EOF
  `grep "#define SQLITE_VERSION_NUMBER " ${opt_sqlite}/include/sqlite3.h`
EOF

echo "SQLite header for version ${SQLITE3_VERSION} found."

if [ "${SQLITE3_VERSION}" -lt "03006000" ]; then
    echo >&2 "Pseudo requires SQLite version 3, 3.6.x or later."
    exit 1
fi

sed -e '
  s,@PREFIX@,'"$opt_prefix"',g
  s,@LIBDIR@,'"$opt_libdir"',g
  s,@SUFFIX@,'"$opt_suffix"',g
  s,@SQLITE@,'"$opt_sqlite"',g
  s!@RPATH@!'"$opt_rpath"'!g
  s,@MARK64@,'"$opt_mark64"',g
  s,@BITS@,'"$opt_bits"',g
' < Makefile.in > Makefile