# $Id: configure.in,v 1.84 2000/03/03 03:53:08 gram Exp $
dnl
dnl Process this file with autoconf 2.13 or later to produce a
dnl configure script; 2.12 doesn't generate a "configure" script that
dnl defines SHELL, and "Makefile.in" has
dnl
dnl	SHELL = @SHELL@
dnl
dnl which requires it to be defined - and there may be other problems
dnl with pre-2.13 "autoconf" as well.
dnl
AC_INIT(etypes.h)

AC_PREREQ(2.13)

AM_INIT_AUTOMAKE(ethereal, 0.8.4)

AM_CONDITIONAL(SETUID_INSTALL, test x$enable_setuid_install = xyes)

dnl Check for CPU / vendor / OS
AC_CANONICAL_HOST

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_RANLIB
AC_PROG_YACC
AM_PROG_LEX
AC_PATH_PROG(PERL_PATH, perl)
AC_PATH_PROG(LEX, flex)

AC_SUBST(PERL_PATH)
AC_SUBST(FLEX_PATH)


# If we're running gcc, add '-Wall' to CFLAGS.
AC_MSG_CHECKING(to see if we can add '-Wall' to CFLAGS)
if test x$GCC != x ; then
  CFLAGS="-Wall $CFLAGS"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

#
# Add any platform-specific compiler flags needed.
#
AC_MSG_CHECKING(for platform-specific compiler flags)
if test "x$GCC" = x
then
	#
	# Not GCC - assume it's the vendor's compiler.
	#
	case "$host_os" in
	hpux*)
		#
		# HP's ANSI C compiler; flags suggested by Jost Martin.
		# "-Aa" for ANSI C
		# "-Ae" for extensions to ANSI, for "long long".
		# "+O2", for optimization.  XXX - works with "-g"?
		#
		CFLAGS="-Aa -Ae +O2 $CFLAGS"
		AC_MSG_RESULT(HP ANSI C compiler - added -Aa -Ae +O2)
		;;
	*)
		AC_MSG_RESULT(none needed)
		;;
	esac
else
	AC_MSG_RESULT(none needed)
fi

#
# Arrange that we search for header files in the source directory
# and in its "wiretap" subdirectory, as well as in "/usr/local/include",
# as various packages we use ("libpcap", "zlib", an SNMP library)
# may have been installed under "/usr/local/include".
#
CFLAGS="$CFLAGS -I\$(top_srcdir) -I\$(top_srcdir)/wiretap -I/usr/local/include"
CPPFLAGS="$CPPFLAGS -I\$(top_srcdir) -I\$(top_srcdir)/wiretap -I/usr/local/include"

#
# Arrange that we search for libraries in "/usr/local/lib".
#
AC_ETHEREAL_ADD_DASH_L(LDFLAGS, /usr/local/lib)

# Create DATAFILE_DIR #define for config.h
DATAFILE_DIR=$sysconfdir
DATAFILE_DIR=`(
    test "x$prefix" = xNONE && prefix=$ac_default_prefix
    test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
    eval echo "$DATAFILE_DIR"
)`
AC_DEFINE_UNQUOTED(DATAFILE_DIR,"$DATAFILE_DIR")
AC_SUBST(DATAFILE_DIR)

# If we're running Solaris, and LD_LIBRARY_PATH is defined, add it as a
# link directory.
case "$host_os" in
  solaris*)
    AC_MSG_CHECKING(for LD_LIBRARY_PATH, since you appear to be running Solaris)
    if test x$LD_LIBRARY_PATH != x ; then
      LIBS="$LIBS -R$LD_LIBRARY_PATH"
      AC_MSG_RESULT(yes -- added LD_LIBRARY_PATH to run-time linker path)
    else
      AC_MSG_RESULT(no -- this may be a problem in a few seconds)
    fi
  ;;
esac

# GLib checks
# This doesn't add GLIB_CFLAGS to CFLAGS, because AM_PATH_GTK will add
# GTK_CFLAGS to CFLAGS, and GTK_CFLAGS is a superset of CFLAGS.
# However, this means that both @GLIB_LIBS@ and @GTK_LIBS@ will be
# set when generating the Makefile, so we can make programs that require
# only GLib link with @GLIB_LIBS@ and make programs that require GTK+
# link with @GTK_LIBS@ (which includes @GLIB_LIBS@).
# We don't add $GLIB_LIBS to LIBS, because we don't want to force all
# programs to be built with GLib.
#
AM_PATH_GLIB(1.2.0, , AC_MSG_ERROR(GLib distribution not found.), gmodule)

# GTK checks
# We don't add $GLIB_LIBS to LIBS, because we don't want to force all
# programs to be built with GTK+.
#
AM_PATH_GTK(1.2.0, CFLAGS="$CFLAGS $GTK_CFLAGS",
                   AC_MSG_ERROR(GTK+ distribution not found.))

dnl Checks for "gethostbyname()" - and "-lnsl", if we need it to get
dnl "gethostbyname()".
AC_ETHEREAL_GETHOSTBY_LIB_CHECK

dnl Checks for "connect()", used as a proxy for "socket()" - and
dnl "-lsocket", if we need it to get "connect()".
AC_ETHEREAL_SOCKET_LIB_CHECK

dnl pcap check
AC_ARG_ENABLE(pcap,
[  --enable-pcap           use libpcap for packet capturing.  [default=yes]],,enable_pcap=yes)

AC_MSG_CHECKING(whether to use libpcap for packet capture)
if test "x$enable_pcap" = "xno" ; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
	AC_ETHEREAL_PCAP_CHECK
fi

dnl zlib check
AC_ARG_ENABLE(zlib,
[  --enable-zlib           use zlib to read compressed data.  [default=yes]],,enable_zlib=yes)

AC_MSG_CHECKING(whether to use zlib for reading compressed capture files)
if test "x$enable_zlib" = "xno" ; then
        AC_MSG_RESULT(no)
else
        AC_MSG_RESULT(yes)
        AC_ETHEREAL_ZLIB_CHECK
	if test "x$enable_zlib" = "xno" ; then
		AC_MSG_RESULT(zlib not found - disabling compressed capture file support)
	fi
fi


dnl ipv6 check
AC_ARG_ENABLE(ipv6,
[  --enable-ipv6           use ipv6 name resolution, if available.  [default=yes]],,enable_ipv6=yes)

AC_MSG_CHECKING(whether to enable ipv6 name resolution if available)
if test "x$enable_ipv6" = "xno" ; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
	AC_ETHEREAL_IPV6_STACK
fi


dnl Check if ethereal should be installed setuid
AC_ARG_ENABLE(setuid-install,
[  --enable-setuid-install install ethereal as setuid. DANGEROUS!!! [default=no]],,enable_setuid_install=no)

AC_MSG_CHECKING(whether to install ethereal setuid)
if test "x$enable_setuid_install" = "xno" ; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
fi

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h sys/ioctl.h sys/time.h unistd.h stdarg.h netdb.h dirent.h)
AC_CHECK_HEADERS(sys/stat.h sys/sockio.h sys/types.h sys/socket.h)
AC_CHECK_HEADERS(sys/wait.h sys/param.h)
AC_CHECK_HEADERS(netinet/in.h net/if.h)
AC_CHECK_HEADERS(stddef.h)
AC_CHECK_HEADERS(dlfcn.h)
AC_CHECK_HEADERS(arpa/inet.h arpa/nameser.h)

dnl SNMP Check
AC_ARG_ENABLE(snmp,
[  --enable-snmp           use SNMP library, if available.  [default=yes]],,enable_snmp=yes)

SNMP_LIBS=''
AC_MSG_CHECKING(whether to use SNMP library if available)
if test "x$enable_snmp" = "xno" ; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
	AC_ETHEREAL_UCDSNMP_CHECK
	AC_CHECK_HEADERS(ucd-snmp/snmp.h ucd-snmp/version.h snmp/snmp.h snmp/version.h)

	#
	# This may require "-lkstat" on Solaris, sigh.
	#
	AC_CHECK_LIB(snmp, sprint_objid,
	  SNMP_LIBS=-lsnmp,
	  [
	    #
	    # Throw away the cached "we didn't find it" answer.
	    #
	    unset ac_cv_lib_snmp_sprint_objid
	    AC_CHECK_LIB(snmp, sprint_objid,
	      [
		#
		# Throw away the cached "we found it" answer, so that if
		# we rerun "configure", we don't just blow off this check
		# and blithely assume that we don't need "-lkstat".
		#
		# XXX - autoconf really needs a way to test for a given
		# routine in a given library *and* to test whether additional
		# "-L"/"-R"/whatever flags are needed *before* the "-l"
		# flag for the library and to test whether additional libraries
		# are needed after the library *and* to cache all that
		# information.
		#
		unset ac_cv_lib_snmp_sprint_objid
		SNMP_LIBS="-lsnmp -lkstat"
	      ],,$SOCKET_LIBS $NSL_LIBS -lkstat
	    )
	  ], $SOCKET_LIBS $NSL_LIBS
	)
	
fi
AC_SUBST(SNMP_LIBS)

dnl Checks for typedefs, structures, and compiler characteristics.
# AC_C_CONST

# We need to know whether "struct sockaddr" has an "sa_len" member
# for get_interface_list().

AC_ETHEREAL_STRUCT_SA_LEN

# We must know our byte order
AC_C_BIGENDIAN

# Checks whether "-traditional" is needed when using "ioctl".
# XXX - do we need this?
AC_PROG_GCC_TRADITIONAL

# If there's a system out there that has snprintf and _doesn't_ have vsnprintf,
# then this won't work.
SNPRINTF_C=""
SNPRINTF_O=""
AC_CHECK_FUNC(snprintf, SNPRINTF_O="",
  SNPRINTF_O="snprintf.o" [AC_DEFINE(NEED_SNPRINTF_H)])
if test "$ac_cv_func_snprintf" = no ; then
  SNPRINTF_C="snprintf.c"
  SNPRINTF_O="snprintf.o"
fi
AC_SUBST(SNPRINTF_C)
AC_SUBST(SNPRINTF_O)

AC_CHECK_FUNC(strerror, STRERROR_O="",
  STRERROR_O="strerror.o" [AC_DEFINE(NEED_STRERROR_H)])
if test "$ac_cv_func_strerror" = no ; then
  STRERROR_C="strerror.c"
  STRERROR_O="strerror.o"
fi
AC_SUBST(STRERROR_C)
AC_SUBST(STRERROR_O)

AC_CHECK_FUNC(strncasecmp, STRNCASECMP_O="",
  STRNCASECMP_O="strncasecmp.o")
if test "$ac_cv_func_strncasecmp" = no ; then
  STRNCASECMP_C="strncasecmp.c"
  STRNCASECMP_O="strncasecmp.o"
fi
AC_SUBST(STRNCASECMP_C)
AC_SUBST(STRNCASECMP_O)

AC_CHECK_FUNC(mkstemp, MKSTEMP_O="",
  MKSTEMP_O="mkstemp.o")
if test "$ac_cv_func_mkstemp" = no ; then
  MKSTEMP_C="mkstemp.c"
  MKSTEMP_O="mkstemp.o"
  AC_DEFINE(NEED_MKSTEMP)
fi
AC_SUBST(MKSTEMP_C)
AC_SUBST(MKSTEMP_O)

AC_CHECK_FUNC(inet_aton, INET_ATON_O="",
  INET_ATON_O="inet_aton.o")
if test "$ac_cv_func_inet_aton" = no ; then
  INET_ATON_C="inet_aton.c"
  INET_ATON_O="inet_aton.o"
fi
AC_SUBST(INET_ATON_C)
AC_SUBST(INET_ATON_O)

AC_CHECK_FUNC(inet_pton, [
  dnl check for pre-BIND82 inet_pton() bug.
  AC_MSG_CHECKING(for broken inet_pton)
  AC_TRY_RUN([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int main()
{
#ifdef AF_INET6
  char buf[16];
  /* this should return 0 (error) */
  return inet_pton(AF_INET6, "0:1:2:3:4:5:6:7:", buf);
#else
  return 1;
#endif
}], [AC_MSG_RESULT(ok);
have_inet_pton=yes], [AC_MSG_RESULT(broken);
have_inet_pton=no], [AC_MSG_RESULT(cross compiling, assume it is broken);
have_inet_pton=no])],
have_inet_pton=no)
if test "$have_inet_pton" = no; then
  INET_PTON_C="inet_pton.c"
  INET_PTON_O="inet_pton.o"
else
  INET_PTON_C=""
  INET_PTON_O=""
fi
AC_SUBST(INET_PTON_C)
AC_SUBST(INET_PTON_O)

AC_CHECK_FUNC(inet_ntop, INET_NTOP_O="",
  INET_NTOP_O="inet_ntop.o")
if test "$ac_cv_func_inet_ntop" = no ; then
  INET_NTOP_C="inet_ntop.c"
  INET_NTOP_O="inet_ntop.o"
  AC_DEFINE(NEED_INET_V6DEFS_H)
fi
AC_SUBST(INET_NTOP_C)
AC_SUBST(INET_NTOP_O)

AC_CHECK_FUNCS(getprotobynumber gethostbyname2)

dnl blank for now, but will be used in future
AC_SUBST(ethereal_SUBDIRS)

dnl check for plugins directory - stolen from Amanda's configure.in
AC_ARG_WITH(plugindir,
  [  --with-plugindir=DIR   install plugins in DIR],
  [
  case "$withval" in
  "" | y | ye | yes | n | no)
    AC_MSG_ERROR([*** You must supply an argument to the --with-plugindir option.])
  ;;
  *) PLUGIN_DIR="$withval"
  esac
  ],
  : ${PLUGIN_DIR=$libdir/ethereal/plugins/0.8}
)

PLUGIN_DIR=`(
  test "x$prefix" = xNONE && prefix=$ac_default_prefix
  test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
  eval echo "$PLUGIN_DIR"
)`
AC_DEFINE_UNQUOTED(PLUGIN_DIR,"$PLUGIN_DIR", [Plugin installation directory])
AC_SUBST(PLUGIN_DIR)

dnl libtool defs
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)

AM_CONFIG_HEADER(config.h)
AC_CONFIG_SUBDIRS(wiretap)
AC_OUTPUT(
  Makefile
  ethereal.spec
  doc/Makefile
  doc/dfilter2pod
  gtk/Makefile
  plugins/Makefile
  plugins/gryphon/Makefile,
	[chmod +x doc/dfilter2pod])