dnl
dnl  TUN - Universal TUN/TAP device driver.
dnl  Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
dnl
dnl  This program is free software; you can redistribute it and/or modify
dnl  it under the terms of the GNU General Public License as published by
dnl  the Free Software Foundation; either version 2 of the License, or
dnl  (at your option) any later version.
dnl
dnl  This program is distributed in the hope that it will be useful,
dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl  GNU General Public License for more details.
dnl
dnl  $Id: configure.in,v 1.3 2000/05/04 19:24:53 maxk Exp 
dnl
dnl Process this file with autoconf to produce a configure script.
dnl
dnl Modified by Kazuyoshi <admin2@whiteboard.ne.jp>
dnl Modified for supporting Ethernet tunneling as known as TAP.

AC_INIT
AC_PROG_CC
AC_PROG_INSTALL
AC_PREFIX_DEFAULT

AC_ARG_ENABLE([64bit],
   [  --disable-64bit         disable build of 64-bit driver],
[use_64bit="$enableval"],[use_64bit=yes])

if test "$use_64bit" = "yes"
then
AC_CHECK_PROG(ISAINFO, isainfo, yes, no, /usr/bin)
else
ISAINFO=no
fi
if test "$ISAINFO" = "yes" -a "$use_64bit" = "yes";
then 
    KARCH=`/usr/bin/isainfo -k`
else
    KARCH=`uname -p`
fi
IS_GNU_LD=`ld --version 2>&1 | grep  GNU`
if test "$GCC" = yes; then
	CFLAGS="$CFLAGS -Wall"
fi
case $KARCH in
     'sparc' | 'i386')
	DRV_DIR="/usr/kernel/drv"
	;;
      'sparcv9')
	CFLAGS="$CFLAGS -m64"
	DRV_DIR="/usr/kernel/drv/sparcv9"
	if test -n "$IS_GNU_LD";
	then
		LD_OPT="-melf64_sparc"
	fi
	;;
      'amd64')
	if test "$GCC" = yes; then
		CFLAGS="$CFLAGS -m64 -mcmodel=kernel -mno-red-zone"
	else
		CFLAGS="$CFLAGS -m64 -xmodel=kernel"
	fi
	DRV_DIR="/usr/kernel/drv/amd64"
	if test -n "$IS_GNU_LD";
	then
		LD_OPT="-melf_x86_64"
	fi
	;;
esac
REL="1.1.0"
TUN_VER="$REL `date '+%m/%d/%Y'`"; export TUN_VER

AC_ARG_ENABLE(debug,
[  --enable-debug          Enable debuging],
   AC_DEFINE(TUN_DEBUG, 1)
)

AC_DEFINE_UNQUOTED(TUN_VER, "$TUN_VER")
AC_SUBST(CFLAGS)
AC_SUBST(LD_OPT)
AC_SUBST(DRV_DIR)
AC_SUBST(prefix)
AC_SUBST(CC)

AC_OUTPUT(Makefile)