File: configure.in

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#
# author: Darren Bounds <dbounds@intrusense.com>
# copyright: Copyright (C) 2002 by Darren Bounds
# license: This software is under GPL version 2 of license
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#  official page at http://forgate.sourceforge.net
#
#

dnl Copyright (c) 2002-2003 Darren Bounds
dnl All rights reserved.

AC_INIT(src/main.c)
AM_CONFIG_HEADER(config.h)
FORGATE_VERSION=`cat VERSION`
AC_MSG_RESULT(beginning auto-configuration process for 4g8-$FORGATE_VERSION...)
AM_INIT_AUTOMAKE(4g8, $FORGATE_VERSION)
AC_SUBST(FORGATE_VERSION)
AC_PREFIX_DEFAULT(/usr/local)

AC_PROG_CC
AC_MSG_CHECKING(for gcc)
if test "$GCC" = yes; then
    CFLAGS="${CFLAGS} -Wall"
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

DEBUG="no"
BINS="4g8"

AC_ARG_ENABLE(debug, 
    [ --enable-debug          Enable debugging],
    [ if test "$GCC" = yes; then
          DEBUG="yes"
          CFLAGS="${CFLAGS} -DDEBUG -ggdb"
      else
          DEBUG="yes"
          CFLAGS="${CFLAGS} -DDEBUG"
      fi
    ],)

AC_SUBST(BINS)
AC_CANONICAL_HOST

SHELL="/bin/sh"

INCLUDES='-I$(top_srcdir) -I$(top_srcdir)/includes'

dnl Checks for OS type.
case "$host" in
    *-freebsd*)
        AC_DEFINE(BSD_DERIVED, 1, OS BSD Derived)
        AC_DEFINE(FREEBSD, 1, FreeBSD)
        ;;
    *-netbsd*)
        AC_DEFINE(BSD_DERIVED, 1, OS BSD Derived)
        AC_DEFINE(NETBSD, 1, NetBSD)
        ;;
    *-openbsd*)
        AC_DEFINE(BSD_DERIVED, 1, OS BSD Derived)
        AC_DEFINE(FREEBSD, 1, OpenBSD)
        ;;
    *-apple*)
        AC_DEFINE(BSD_DERIVED, 1, OS BSD Derived)
        AC_DEFINE(MACOS, 1, MacOS)
        LDFLAGS="${LDFLAGS} -L/sw/lib"
        INCLUDES="${INCLUDES} -I/sw/include";
        ;;
    *-linux*)
        AC_DEFINE(SYSV_DERIVED, 1, OS SysV Derived)
        AC_DEFINE(LINUX, 1, Linux)
        INCLUDES="${INCLUDES} -I/usr/include/pcap";
        ;;
    *-solaris*)
        AC_DEFINE(SYSV_DERIVED, 1, OS SysV Derived)
        AC_DEFINE(SOLARIS, 1, Solaris)
        ;;
    *-aix*)
        AC_DEFINE(SYSV_DERIVED, 1, OS SysV Derived)
        AC_DEFINE(AIX, 1, AIX)
        ;;
    *-hpux*)
        AC_DEFINE(SYSV_DERIVED, 1, OS SysV Derived)
        AC_DEFINE(HPUX, 1, HPUX) 
        ;;
esac

AC_SUBST(INCLUDES)

dnl Checks for typedef
AC_CHECK_TYPE(u_int8_t, unsigned char)
AC_CHECK_TYPE(u_int16_t, unsigned short)
AC_CHECK_TYPE(u_int32_t, unsigned int)
AC_CHECK_TYPE(u_int64_t, unsigned long long)

dnl Checks for header files.
AC_CHECK_HEADERS(signal.h net/bpf.h sys/time.h)

AC_ARG_WITH(libnet_includes,
    [  --with-libnet-includes=DIR    libnet include directory],
    [with_libnet_includes="$withval"],[with_libnet_includes=no])

if test "$with_libnet_includes" != "no"; then
    CFLAGS="${CFLAGS} -I${with_libnet_includes}"
fi

AC_CHECK_HEADERS(libnet.h,, LIBNET="no")
if test "$LIBNET" = "no"; then
    echo ""
    echo "Error: Can't find libnet 1.1.0 or greater. Visit http://www.packetfactory.net/libnet for the latest version."
    exit;
fi  

AC_ARG_WITH(libpcap_includes,
     [  --with-libpcap-includes=DIR   libcap include directory],
     [with_libpcap_includes="$withval"],[with_libpcap_includes=no])

if test "$with_libpcap_includes" != "no"; then
    CFLAGS="${CFLAGS} -I${with_libpcap_includes}"
fi

AC_CHECK_HEADERS(pcap.h,, LIBPCAP="no")
if test "$LIBNET" = "no"; then
    echo ""
    echo "Error: Can't find Libpcap. Visit http://www.tcpdump.org for the latest version."
    exit;
fi

dnl Checks for library functions.
AC_CHECK_FUNCS(printf fprintf snprintf sprintf strdup strrchr strstr strncasecmp \
    strtol strncmp strncat memset malloc gethostbyname gettimeofday getuid \
    select setitimer)

AC_ARG_WITH(libnet_libraries,
    [  --with-libnet-libraries=DIR   libnet library directory],
    [with_libnet_libraries="$withval"],[with_libnet_libraries=no])

if test "$with_libnet_libraries" != "no"; then
    LDFLAGS="${LDFLAGS} -L${with_libnet_libraries}"
fi

AC_CHECK_LIB(net, libnet_build_ipv4,, LIBNET="no")
if test "$LIBNET" = "no"; then
    echo ""
    echo "Error: Can't find libnet 1.1.0 or greater. Visit http://www.packetfactory.net/libnet for the latest version."
    exit;
fi  

AC_ARG_WITH(libpcap_libraries,
    [  --with-libpcap-libraries=DIR  libcap library directory],
    [with_libpcap_libraries="$withval"],[with_libpcap_libraries=no])

if test "$with_libpcap_libraries" != "no"; then
    LDFLAGS="${LDFLAGS} -L${with_libpcap_libraries}"
fi

AC_CHECK_LIB(pcap, pcap_open_live,, LIBPCAP="no")
if test "$LIBPCAP" = "no"; then
    echo ""
    echo "Error: Can't find Libpcap. Visit http://www.tcpdump.org for the latest version."
    exit;
fi

AC_MSG_CHECKING(for bpf)
if test -r /dev/bpf0; then
    AC_DEFINE(HAVE_BPF, 1, BPF)
    AC_MSG_RESULT(yes)
elif test -c /dev/bpf0; then
    AC_DEFINE(HAVE_BPF, 1, BPF)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_PROG_INSTALL
AC_OUTPUT(Makefile src/Makefile src/version.h)

BINDIR=`eval echo ${bindir}`; BINDIR=`eval echo ${BINDIR}`;

echo ""
echo "4g8 has been configured with the following options:"
echo "-----------------------------------------------"
echo "Host type             : ${host}"
echo "Compiler              : ${CC}"
echo "Compiler flags        : ${CFLAGS}"
echo "Linker flags          : ${LDFLAGS}"
echo "Libraries             : ${LIBS}"
echo ""
echo "Binary                : ${BINDIR}"
echo ""
echo "Enable debugging      : ${DEBUG}"
echo "-----------------------------------------------"
echo ""

dnl EOF